diff --git a/README.md b/README.md
index 57f7f8b4ad6c875603a73cab857bcb2af1206eb0..fcdcca48673285e58a5ec064f315b60480b5952b 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,7 @@ helloworld.json 的格式如下：
   "author": "xxx",
   "source": "helloworld.md",
   "notebook_enable": false,
-  "exercise_id": "xxx"
+  "exercise_id": ""
 }
 ```
 
diff --git "a/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/1.\345\205\263\347\263\273\345\236\213\346\225\260\346\215\256\345\272\223/relation.json" "b/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/1.\345\205\263\347\263\273\345\236\213\346\225\260\346\215\256\345\272\223/relation.json"
index c596dd12bbfb83872a71ee2d017a03c05e6cfe88..de7627321db8f31e668f6510f644eb13ec851558 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/1.\345\205\263\347\263\273\345\236\213\346\225\260\346\215\256\345\272\223/relation.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/1.\345\205\263\347\263\273\345\236\213\346\225\260\346\215\256\345\272\223/relation.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "relation.md",
   "notebook_enable": false,
-  "exercise_id": "e50c1cee116d4054b9794c57effa9f5a"
+  "exercise_id": ""
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/client.json" "b/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/client.json"
index 509384622ce9ce790bab4f4c1aaf5c68f3b7205c..ce9314e73b23235f4354ab8812db3c970f5e8102 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/client.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/client.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "client.md",
   "notebook_enable": false,
-  "exercise_id": "88b033cd97c642ef9900e5e091e335ff"
+  "exercise_id": "06e56f7cc7fd45b89f1032bd28d6ee5a"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/server.json" "b/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/server.json"
index cda5b398bb634bf9290e5b6c5ec47354077e70ca..467b207801951458119b50c1e87e42ddede47718 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/server.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/1.\345\237\272\346\234\254\346\246\202\345\277\265/2.\346\234\215\345\212\241\345\231\250\345\222\214\345\256\242\346\210\267\347\253\257/server.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "server.md",
   "notebook_enable": false,
-  "exercise_id": "55868ca50313434d855bbc1e997cf61b"
+  "exercise_id": "297b2eb8c0b740dfb1ba52cd02044fd5"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/1.\345\256\211\350\243\205/install.json" "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/1.\345\256\211\350\243\205/install.json"
index 25e3ff0f365420997451f4331c3b733d7be5cb3f..9653d5cf0342c59b9790a1b5f81488f077e4c2ed 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/1.\345\256\211\350\243\205/install.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/1.\345\256\211\350\243\205/install.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "install.md",
   "notebook_enable": false,
-  "exercise_id": "ca4669e5d66944df830390aec841cc7b"
+  "exercise_id": "8853d1b52947421a9ffb84007126825e"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/login.json" "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/login.json"
index 1bafe5ca742307113688cd874a69ee1ddcd6f9d2..d7a6dd0651e83e47df2e2899737ebb8b7f98fcb5 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/login.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/login.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "login.md",
   "notebook_enable": false,
-  "exercise_id": "54917a4c69af41749d1c2a4430267f27"
+  "exercise_id": "e3f7a8400c0047009cc089d15fc14795"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/rds.json" "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/rds.json"
index 761640594498e80ca3d4db6faf79d34ea592bd6a..4ab5702af7af9286680de26bc764191277cd666b 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/rds.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/2.\347\231\273\345\275\225/rds.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "rds.md",
   "notebook_enable": false,
-  "exercise_id": "6b04760cd212469c925eb4a9c4a66757"
+  "exercise_id": "7fe3fb9342234107a16bc059a44fbed7"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/3.\344\275\277\347\224\250/develop.json" "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/3.\344\275\277\347\224\250/develop.json"
index f178339e21099fbcdcc6fe3f7d2c0996edd121e6..073c4395cbec7b4f7c1ff75937483b84b1351ee8 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/3.\344\275\277\347\224\250/develop.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/2.\345\256\211\350\243\205\345\222\214\344\275\277\347\224\250/3.\344\275\277\347\224\250/develop.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "develop.md",
   "notebook_enable": false,
-  "exercise_id": "257414ca11f24a35a6270166b6bd2830"
+  "exercise_id": "a13e3981d5e94b38bb3ee6a5a909c7cf"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/1.psql/psql.json" "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/1.psql/psql.json"
index 895882b5a5939e02af83f99ee33a8aec1c7919c6..8b1afb970c41542aa890ef73a8e141e3c9745fa6 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/1.psql/psql.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/1.psql/psql.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "psql.md",
   "notebook_enable": false,
-  "exercise_id": "47faab6fba92431da6cbb2dacbf5bae4"
+  "exercise_id": "6a216c26da85435e9b6cf41f7f209edb"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/2.SQL\345\237\272\346\234\254\350\257\255\346\263\225/basic.json" "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/2.SQL\345\237\272\346\234\254\350\257\255\346\263\225/basic.json"
index 14648d8e473f356034743c89d244c7920ae3d74b..920a82284d270e08ff294b01c1d06fc998d7f792 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/2.SQL\345\237\272\346\234\254\350\257\255\346\263\225/basic.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/2.SQL\345\237\272\346\234\254\350\257\255\346\263\225/basic.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "basic.md",
   "notebook_enable": false,
-  "exercise_id": "76fffa1781f140fd9abee9231a7186f4"
+  "exercise_id": "48b5a5d7529c452696861d9ec6dbc180"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/concept.json" "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/concept.json"
index 0cf5ed2606e87b40f0f5488ddc136544e6a1da7c..ab7f730029acc2098b2c125edd3cb5c78ee8e1c4 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/concept.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/concept.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "concept.md",
   "notebook_enable": false,
-  "exercise_id": "ce2be9e86c6643a8a545115ae70ee8c1"
+  "exercise_id": "3bae822bb4204ae0a001191afec48a58"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/delete.json" "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/delete.json"
index 29c89c8b81297cd896987e18dc71b134a0117821..4b6fea4922b04449a5a6e00f06067009a28a84d9 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/delete.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/delete.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "delete.md",
   "notebook_enable": false,
-  "exercise_id": "78e6ca15ba794ef3b2092de4640308b9"
+  "exercise_id": "fda0d0bd37e342cd8680569a514114f9"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/insert.json" "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/insert.json"
index 88d37915061a5e7a1c4f2e7a77f98158fcd5fb80..75f2ee3162eec4052b2ac2f778183746896bea8f 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/insert.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/insert.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "insert.md",
   "notebook_enable": false,
-  "exercise_id": "2d562e3ae4a84e648de31452a67ba71f"
+  "exercise_id": "27973a87da2c4213b4a1b26897385854"
 }
\ No newline at end of file
diff --git "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/update.json" "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/update.json"
index 41b52ea6b2d0c0fe86061382b3ee6d3e3422c33e..00b81e1427a957c99554a1ce97ed4ff44b3be6d1 100644
--- "a/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/update.json"
+++ "b/data/1.MySQL\345\210\235\351\230\266/3.\346\237\245\350\257\242\346\225\260\346\215\256/3.SQL\343\200\201DML\345\222\214DDL/update.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "update.md",
   "notebook_enable": false,
-  "exercise_id": "d6f2c270c3cd41a499715e55a2c565ba"
+  "exercise_id": "7ac9fc0f4d3046788db2a0322a78ff68"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/create_table.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/create_table.json"
index 699003aa73874fd8da8b9ff4849155be33a23eaa..f0ad7eb571dc9946003e1019e4b63e0645f8eafc 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/create_table.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/create_table.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "create_table.md",
   "notebook_enable": false,
-  "exercise_id": "14cc4d8de8c44415b80e9c94ea617464"
+  "exercise_id": "2253c23fd6fd4f4bb159565a7bf94773"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/serial.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/serial.json"
index f4eb74ed0c91cbbc6a216397027312d0695e9a07..6b3b18ac436e6ec7c8232074c7263bc92f1e8afd 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/serial.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/serial.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "serial.md",
   "notebook_enable": false,
-  "exercise_id": "69bcc5f08a4e4328b54e389d74363e2a"
+  "exercise_id": "ac5111c4826b48659e6ba60aa614706d"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/table.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/table.json"
index 7292e1fb03c679996b61239c41503f8dc950be58..cf693519df6394dd756f090d3c2152d5ce6d3447 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/table.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/1.\350\241\250/table.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "table.md",
   "notebook_enable": false,
-  "exercise_id": "17b32ec3157e4b7aaa6948fa04db51e3"
+  "exercise_id": "1d869c25b7de46729071f59aa1cdaecd"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/2.\345\207\275\346\225\260/function.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/2.\345\207\275\346\225\260/function.json"
index b44f17d3e56f856b71e225e0553fcb14cce99d8a..cf6885e24474f3f8a168a53814d66ea33231ddf7 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/2.\345\207\275\346\225\260/function.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/2.\345\207\275\346\225\260/function.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "function.md",
   "notebook_enable": false,
-  "exercise_id": "7d0a6977f12a4d93bd684b56b2ad7003"
+  "exercise_id": "65ba04e19bad4538a4af9b3da275fe68"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/grant.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/grant.json"
index 31e82ec3d97a5206951aa2466c563da337a654d7..a1fabda07ae43ff485acc251563085d5ffc5dc90 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/grant.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/grant.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "grant.md",
   "notebook_enable": false,
-  "exercise_id": "0766e022b61f4c83b4fe64cd8e4e5e9b"
+  "exercise_id": "b64ebf99bff14f69b2ef92049bb7b57c"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/revoke.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/revoke.json"
index fd0b461240b5e5f2eff4fd85fa7b1b20405f5e01..43e0a757486a7b17772ac066b6be4a1e7b57ebdd 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/revoke.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/revoke.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "revoke.md",
   "notebook_enable": false,
-  "exercise_id": "65de2267ccb7478db916d517d4b5bce7"
+  "exercise_id": "f1aef134b4aa4474a8469d5c9e0da77a"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/role.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/role.json"
index a12fc3a11579a3938f6d5d4af00dfc98a1873484..6f11bb20c1ee1e9319c7fd686e61ecc54dc70552 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/role.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/3.\347\224\250\346\210\267\345\222\214\346\235\203\351\231\220/role.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "role.md",
   "notebook_enable": false,
-  "exercise_id": "f093e146721541139080bc01ffd39750"
+  "exercise_id": "3a5beeea5b2d4fcfabfe6c54111a3504"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/primary_key.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/primary_key.json"
index 36940318d3fd23dd35acfbba69f31ea5ca7ccc87..215f2341aef8a43ce295e953e8d9acea67aa2add 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/primary_key.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/primary_key.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "primary_key.md",
   "notebook_enable": false,
-  "exercise_id": "412c89270d24418ab35a1d919a5017e7"
+  "exercise_id": "f4608bdac8c84cca811582798709fae5"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique.json"
index 0bde4fa7ac106eb45bd565d5c3d34756a033091f..7d970226d76935fe356f33da4beb37fb95f10a0f 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "unique.md",
   "notebook_enable": false,
-  "exercise_id": "482896ba26ec43bc8ddedbf3448d47bb"
+  "exercise_id": "ce440ee390da487a988ec926cf9e2bf5"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique_2.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique_2.json"
index 0deb289cc1b5d025a5f934584c0d5204a876acca..cf3882d3d977308764f2c54d8bb42f95b8586cf4 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique_2.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/4.\347\264\242\345\274\225\345\222\214\347\272\246\346\235\237/unique_2.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "unique_2.md",
   "notebook_enable": false,
-  "exercise_id": "f1f5779378ef4684a210188e5730b6a1"
+  "exercise_id": "69942903e7dd47fbafd9b8f3ed7e59d5"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/5. \350\247\246\345\217\221\345\231\250/trigger.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/5. \350\247\246\345\217\221\345\231\250/trigger.json"
index 0feefd55f91d63d63b37c84f86e7cf79d4df384d..b60f6cf55187316fb13ebb92aa0559b336c15660 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/5. \350\247\246\345\217\221\345\231\250/trigger.json"	
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/5. \350\247\246\345\217\221\345\231\250/trigger.json"	
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "trigger.md",
   "notebook_enable": false,
-  "exercise_id": "2724dfb0a71c473b8a071e1d2aecc030"
+  "exercise_id": "457f6b7e9b2b4eb58d15f12cb21a1463"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/extension.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/extension.json"
index dc0900e74024d6c4e65a144b08aa7ffd08a140ee..2ee412c935d724318367c512ff80676ba16bb152 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/extension.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/extension.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "extension.md",
   "notebook_enable": false,
-  "exercise_id": "fad124e7fe1a420dbfbe72de8d4b3f11"
+  "exercise_id": "8875ecad1e9f403bbad6f68f2f5d6a9f"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/language.json" "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/language.json"
index b3d1995105f96c6e531fe5a00e50f0c946d9af43..ed80643b8c886338d0bb7e621b25df07c5b14bd0 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/language.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/1.\345\237\272\346\234\254\347\273\223\346\236\204/6.\346\225\260\346\215\256\345\272\223\346\211\251\345\261\225/language.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "language.md",
   "notebook_enable": false,
-  "exercise_id": "4657a4c34eec421a913625fb61af00d4"
+  "exercise_id": "1d88714991c849c7ad65b9b4fa17c583"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/1.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/salary.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/1.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/salary.json"
index d1ed8c23dad61317d7b9637fd888d086b297313b..bc6826f54c99dc43365e5a591ec43a8e494dd4b0 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/1.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/salary.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/1.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/salary.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "salary.md",
   "notebook_enable": false,
-  "exercise_id": "31deab40b4af44c38c363b2333bdd977"
+  "exercise_id": "94cfdf9e41724b5893bf5b86fb81525d"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/2.\350\277\236\346\216\245\346\237\245\350\257\242/customer_order.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/2.\350\277\236\346\216\245\346\237\245\350\257\242/customer_order.json"
index 3988606e13fec39500d3941561d8fc49bffd77db..35017046022133e3812820e4703b4e05f382b29a 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/2.\350\277\236\346\216\245\346\237\245\350\257\242/customer_order.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/2.\350\277\236\346\216\245\346\237\245\350\257\242/customer_order.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "customer_order.md",
   "notebook_enable": false,
-  "exercise_id": "18d5a22c34874bb4b73aac6846674243"
+  "exercise_id": "37f64868b412458c8c584a7ab7941792"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/3.\345\255\220\346\237\245\350\257\242/subquery.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/3.\345\255\220\346\237\245\350\257\242/subquery.json"
index b6a2f58fec50d3fd0aed2e6bc54aa9ddfc54a9c9..1462c51208e1117b1fa81b4969d0d34e361e537b 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/3.\345\255\220\346\237\245\350\257\242/subquery.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/3.\345\255\220\346\237\245\350\257\242/subquery.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "subquery.md",
   "notebook_enable": false,
-  "exercise_id": "82be2aa951304dc9869cd7177fcba99f"
+  "exercise_id": "98e5d3cb30d94db0bfdca72995648586"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/4.\345\210\206\351\241\265\346\237\245\350\257\242/paged.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/4.\345\210\206\351\241\265\346\237\245\350\257\242/paged.json"
index 3e499ac7c346e1ec8413295f0d4f85fa775d0182..0518fa861b1a1fc7e155abde72ffd20b977902f6 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/4.\345\210\206\351\241\265\346\237\245\350\257\242/paged.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/4.\345\210\206\351\241\265\346\237\245\350\257\242/paged.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "paged.md",
   "notebook_enable": false,
-  "exercise_id": "c92fab72b5c24e76b1032ca7a0c64c44"
+  "exercise_id": "68e526b5717246a190e6bb06ad3e58ac"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/5.CTE/to_root.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/5.CTE/to_root.json"
index d0b0d05f9fea5392f3d1a62851eaa6afd1d5432c..0c94f0b4e6eeffe41e62b9897535b1a8f7eec0e2 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/5.CTE/to_root.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/5.CTE/to_root.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "to_root.md",
   "notebook_enable": false,
-  "exercise_id": "45f0cef12fcf4f9e90276dff6a336657"
+  "exercise_id": "3d631bd0b26b44b4a8951ef7d4f865ec"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/6.\350\277\207\347\250\213\345\214\226\347\274\226\347\250\213/loop.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/6.\350\277\207\347\250\213\345\214\226\347\274\226\347\250\213/loop.json"
index a971b7c55f08b1d50a1d357297c7d5a434c32d4a..1412719a1d18f0743147f5cef64aacd25a4f86a5 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/6.\350\277\207\347\250\213\345\214\226\347\274\226\347\250\213/loop.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/6.\350\277\207\347\250\213\345\214\226\347\274\226\347\250\213/loop.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "loop.md",
   "notebook_enable": false,
-  "exercise_id": "8d25c0639365404ba3c61282e5ea32ba"
+  "exercise_id": "4f53e1f2bc704c7fbe4b2586d690d3ff"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/analyze.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/analyze.json"
index 387de4f8010d83c59ed9364c9f09529a2d4a04df..9c965f3c60b0bec5c756ba7d4b3eb389f573cd3c 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/analyze.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/analyze.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "analyze.md",
   "notebook_enable": false,
-  "exercise_id": "ee4d10ae488b4900835e52d184822962"
+  "exercise_id": "df45f27112f7405888a5ee7e18d78b87"
 }
\ No newline at end of file
diff --git "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/create_table.json" "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/create_table.json"
index 5a0f9e5c9acb6a982ce4b2e9e45915ed6651f773..7cf4013187ba0df8c9dcaefbe31351075656f522 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/create_table.json"
+++ "b/data/2.MySQL\344\270\255\351\230\266/2.\346\234\215\345\212\241\347\253\257\347\274\226\347\250\213/7.DDL/create_table.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "create_table.md",
   "notebook_enable": false,
-  "exercise_id": "b9fc3c13d8df447fa9244f142b5c8c16"
+  "exercise_id": "d6e788dd034b4e0093b8ca39a8dd6b6b"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/backup.json" "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/backup.json"
index 4ad4ea37e1c3bc3a0eb973f72ae9f6ecd1cd6821..10d65e5c0ec32c93d7a5b3d8835e1982c7a21071 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/backup.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/backup.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "backup.md",
   "notebook_enable": false,
-  "exercise_id": "261517a14bca4cfd98ce23caf63c9cf5"
+  "exercise_id": "fddaa23fdd8343b184d563f08c13eff0"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/standby.json" "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/standby.json"
index 1340b40faf92eb087a55d9b82da06a36c8a7fdc2..94a3152d60ee4b64c6f1b7ac367c4d5bc68140fd 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/standby.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/1.standby/standby.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "standby.md",
   "notebook_enable": false,
-  "exercise_id": "491d9bdd19c04279ac607b73a63bb3e6"
+  "exercise_id": "3f75060041014897af51ae8fc56a9c65"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/2.\346\265\201\345\274\217\345\244\215\345\210\266\351\233\206\347\276\244/stream.json" "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/2.\346\265\201\345\274\217\345\244\215\345\210\266\351\233\206\347\276\244/stream.json"
index 723ccf8307241e63654a874f75bc63daeef1501a..3b6778163c0e78d4836c6ad869092fd0889a2cf4 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/2.\346\265\201\345\274\217\345\244\215\345\210\266\351\233\206\347\276\244/stream.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/2.\346\265\201\345\274\217\345\244\215\345\210\266\351\233\206\347\276\244/stream.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "stream.md",
   "notebook_enable": false,
-  "exercise_id": "061bfb92b674438cb56a6cf72c406cbb"
+  "exercise_id": "ffc0e766b5dd440fa8e136fc19494b56"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/3.fdw/fdw.json" "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/3.fdw/fdw.json"
index 116908ae233493f6f082ceb8bc0db62e9de0c65b..537ed5ad77f9a4aa966081d88ea58af91fb08d69 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/3.fdw/fdw.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/1.\351\233\206\347\276\244\345\222\214\345\244\215\345\210\266/3.fdw/fdw.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "fdw.md",
   "notebook_enable": false,
-  "exercise_id": "762a9c3f032b4ce884858c18e2bb580c"
+  "exercise_id": "5a72d037bbac49b88b3b17864335b29d"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/1.\345\207\240\344\275\225\347\261\273\345\236\213\345\222\214GIS/gis.json" "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/1.\345\207\240\344\275\225\347\261\273\345\236\213\345\222\214GIS/gis.json"
index dcf6e51778efc5ba45b9013dca51c397a74282f2..99683c6d980cf853317948998d709a621e6a7689 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/1.\345\207\240\344\275\225\347\261\273\345\236\213\345\222\214GIS/gis.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/1.\345\207\240\344\275\225\347\261\273\345\236\213\345\222\214GIS/gis.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "gis.md",
   "notebook_enable": false,
-  "exercise_id": "617b947cb29b4a75b4b9367eaf7b8a7d"
+  "exercise_id": "3ea8a37e3cc540de85f3ecee269adc47"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/json.json" "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/json.json"
index 2d908f619351ba11e6d00bf0138b7401acd63170..9e68e1cf07ecec40a2c0386d159d7d7ef825ef21 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/json.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/json.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "json.md",
   "notebook_enable": false,
-  "exercise_id": "99a960a0b46f4b1ba19bdb4bce6ac31d"
+  "exercise_id": "0ccc11bb1a0847309c3d196024bebc41"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/match.json" "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/match.json"
index b4b7e5c548a65b98687706f76827c8a57f9c3f45..4a4d9fa72700c8637dace9e3de89ab620feb90af 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/match.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/match.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "match.md",
   "notebook_enable": false,
-  "exercise_id": "5b730f2a3c734ce780766ad23dcad033"
+  "exercise_id": "44a335429a10417da1133cfbcaca3e24"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/tags.json" "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/tags.json"
index 73a9ee51c577b32e986b1ecc754d6b8c4d53402e..c68c9a07b3b23b00d2dbd74ae265f8d6eb7e3f60 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/tags.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/2.JSON\345\222\214JSONB/tags.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "tags.md",
   "notebook_enable": false,
-  "exercise_id": "a415bb85ddb3400aae34318b9c142639"
+  "exercise_id": "d2a6e1d752af4358bd1055d5b6377443"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/3.\345\207\275\346\225\260/distinct.json" "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/3.\345\207\275\346\225\260/distinct.json"
index 9b9f5f2ce65280ff8c334e48b696221755b903a9..645a7b846b94daa5f9448592f5dd251332a5f279 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/3.\345\207\275\346\225\260/distinct.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/3.\345\207\275\346\225\260/distinct.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "distinct.md",
   "notebook_enable": false,
-  "exercise_id": "e5c4e314fcee480db8f4db8f9d76e0fd"
+  "exercise_id": "cc79e0c25a79496b943fe3cf9a706464"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/4.\350\247\206\345\233\276/view.json" "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/4.\350\247\206\345\233\276/view.json"
index e3c757921fa6e0cb9d0583416606f659bf9caf1d..1fd00f030216b33b85364ed12bccbc5c2eaab18f 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/4.\350\247\206\345\233\276/view.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/2.\351\253\230\347\272\247\346\225\260\346\215\256\347\261\273\345\236\213/4.\350\247\206\345\233\276/view.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "view.md",
   "notebook_enable": false,
-  "exercise_id": "29e05c6b76c648f8bf9bcf08be3de364"
+  "exercise_id": "2c4e09ba5fa549c2a6bc0e7f73bacb3c"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/1.\351\200\222\345\275\222\346\237\245\350\257\242/continuous.json" "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/1.\351\200\222\345\275\222\346\237\245\350\257\242/continuous.json"
index d53a0fc6ce275156f7fbab3a55baa9d5fb296095..63ce69141a3867f8427aa217c1875dee61fa86e6 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/1.\351\200\222\345\275\222\346\237\245\350\257\242/continuous.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/1.\351\200\222\345\275\222\346\237\245\350\257\242/continuous.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "continuous.md",
   "notebook_enable": false,
-  "exercise_id": "bd4568ed83594d12b510c6c69bf611f2"
+  "exercise_id": "5ef30b7d38ff49838714076b389bdab2"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/2.Window Function/salary.json" "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/2.Window Function/salary.json"
index c54524d6d10ce7cd65b4cb7e6bed067762de0bb5..0cbc715c2fde024c5aeebf0d7a1b8a4ee5784b03 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/2.Window Function/salary.json"	
+++ "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/2.Window Function/salary.json"	
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "salary.md",
   "notebook_enable": false,
-  "exercise_id": "6dc9ce6d2a354a9986585a458e5476c9"
+  "exercise_id": "a170328a439c4c389a468e7bd09027f2"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/3.\351\200\217\350\247\206\350\241\250 /pivot.json" "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/3.\351\200\217\350\247\206\350\241\250 /pivot.json"
index fd3bd727c771a7f9068e3c530dbe81ab848be037..19547b1336a26875da26ac286cc1d2b8d9c7e6c7 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/3.\351\200\217\350\247\206\350\241\250 /pivot.json"	
+++ "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/3.\351\200\217\350\247\206\350\241\250 /pivot.json"	
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "pivot.md",
   "notebook_enable": false,
-  "exercise_id": "e39489bf015448fb87c9722d05b357a4"
+  "exercise_id": "3ae8838c87784c77bbda8455e0bdaf28"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/4.\345\206\231\345\205\245\345\222\214\345\206\262\347\252\201/score.json" "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/4.\345\206\231\345\205\245\345\222\214\345\206\262\347\252\201/score.json"
index 80fd4f032d691767367c644b472dfcf857c63f4f..d08315a5bf165b2081eeaa3e21155714d3dd4373 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/4.\345\206\231\345\205\245\345\222\214\345\206\262\347\252\201/score.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/4.\345\206\231\345\205\245\345\222\214\345\206\262\347\252\201/score.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "score.md",
   "notebook_enable": false,
-  "exercise_id": "a4ef62fde91d4f558c6107172ba4f736"
+  "exercise_id": "5dedf372f7a14644bd297c87fc900818"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/5.\344\272\213\345\212\241/transaction.json" "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/5.\344\272\213\345\212\241/transaction.json"
index e5b68186682e110b8872b090127b3a4db7ad4c52..68bdf8997eec1d8973ef8a8f308fdb5215c8ce4a 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/5.\344\272\213\345\212\241/transaction.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/5.\344\272\213\345\212\241/transaction.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "transaction.md",
   "notebook_enable": false,
-  "exercise_id": "bce8976b508942bdbe3bd5b6315e7583"
+  "exercise_id": "8212b360ad074b468efac3e1a8929f36"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment.json" "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment.json"
index 487ecec46d51aa3a97aeb7bf789ddcfdee85099d..e90525b8ab0d6c724c177141c3015307c4885203 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "daily_payment.md",
   "notebook_enable": false,
-  "exercise_id": "5e355cc9197a4d02a54f045301c88ace"
+  "exercise_id": "f2cf8ee02f04447ca0a76a98dbad8d73"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment_2.json" "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment_2.json"
index eb7af25608caaa4d8b7aaad37e3c5aeee4cfd70e..99e64ed51895a22eaf5197e6570b74d24318e8de 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment_2.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/3.SQL\351\253\230\347\272\247\346\212\200\345\267\247/6.\347\264\242\345\274\225\345\222\214\344\274\230\345\214\226/daily_payment_2.json"
@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "daily_payment_2.md",
   "notebook_enable": false,
-  "exercise_id": "9295152720b74c65a0236cec175f6dce"
+  "exercise_id": "ffde3c073ee848a093c5edc733c7a61c"
 }
\ No newline at end of file
diff --git "a/data/3.MySQL\351\253\230\351\230\266/4.\350\277\233\351\230\266\344\273\273\345\212\241/1.\346\225\260\346\215\256\345\272\223\351\227\256\347\255\224/qa.json" "b/data/3.MySQL\351\253\230\351\230\266/4.\350\277\233\351\230\266\344\273\273\345\212\241/1.\346\225\260\346\215\256\345\272\223\351\227\256\347\255\224/qa.json"
index c6c94d3fb4f559c269a00b95317919999b06ab21..0eaa3229f11623438484a486f3ca627dbe77d763 100644
--- "a/data/3.MySQL\351\253\230\351\230\266/4.\350\277\233\351\230\266\344\273\273\345\212\241/1.\346\225\260\346\215\256\345\272\223\351\227\256\347\255\224/qa.json"
+++ "b/data/3.MySQL\351\253\230\351\230\266/4.\350\277\233\351\230\266\344\273\273\345\212\241/1.\346\225\260\346\215\256\345\272\223\351\227\256\347\255\224/qa.json"
@@ -5,5 +5,5 @@
   "type": "task_qa",
   "task_link": "https://ask.csdn.net/channel/20/tag/300001",
   "notebook_enable": false,
-  "exercise_id": "6798dddec5654cee9182e8aedfe70c2d"
+  "exercise_id": "a7d06ce78c1347c8bd9e827b180d298e"
 }
\ No newline at end of file
diff --git a/data/tree.json b/data/tree.json
index 1f97b638a14d15af56d1f4f0357deb7062ddb360..1e5c25fe1f321ed67c9d917dcbec25e1f68717bc 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -15,7 +15,7 @@
                 "children": [
                   {
                     "关系型数据库": {
-                      "node_id": "mysql-9fcbb1d0c57c48cda031c5821d1602fa",
+                      "node_id": "mysql-67b5ccfe50d34cf99c38d0e63f95c59e",
                       "keywords": [
                         "关系型数据库",
                         "database",
@@ -34,7 +34,7 @@
                   },
                   {
                     "服务器和客户端": {
-                      "node_id": "mysql-e681e8c35f0948f0843ececdd68f0751",
+                      "node_id": "mysql-86367300e7b643e18caf7b9349ab705a",
                       "keywords": [
                         "server",
                         "client",
@@ -61,7 +61,7 @@
                 "children": [
                   {
                     "安装": {
-                      "node_id": "mysql-a59d178ac44b4ec1be7a6fefb6190c70",
+                      "node_id": "mysql-95d0b7e5493e478f85ca49a77a13d194",
                       "keywords": [
                         "安装",
                         "PostgreSQL"
@@ -75,7 +75,7 @@
                   },
                   {
                     "登录": {
-                      "node_id": "mysql-20d6c1ca7ed447e2ad332bf38a04499e",
+                      "node_id": "mysql-932a42b96ee34177b3d980c30cbab717",
                       "keywords": [
                         "登录",
                         "身份验证",
@@ -90,7 +90,7 @@
                   },
                   {
                     "使用": {
-                      "node_id": "mysql-3914587eda97466b8350d32eee431d2e",
+                      "node_id": "mysql-5720037d32894078aa03106e4d798984",
                       "keywords": [
                         "login",
                         "connect"
@@ -116,7 +116,7 @@
                 "children": [
                   {
                     "psql": {
-                      "node_id": "mysql-62e8fcfc87a84019a0190647b2033eee",
+                      "node_id": "mysql-79f255c8025d4379b9782e445d37b8b5",
                       "keywords": [
                         "sql",
                         "psql",
@@ -131,7 +131,7 @@
                   },
                   {
                     "SQL基本语法": {
-                      "node_id": "mysql-229cf42e73df4023be4224780b79d388",
+                      "node_id": "mysql-b1416d413b75470697201b9d6ffeebff",
                       "keywords": [
                         "语法",
                         "select"
@@ -146,7 +146,7 @@
                   },
                   {
                     "SQL、DML和DDL": {
-                      "node_id": "mysql-7609aaf33ced4c18b14dbbe82a4b2fdb",
+                      "node_id": "mysql-d62d60e24fe14f049712c9db8cf25ea9",
                       "keywords": [
                         "DML",
                         "insert",
@@ -186,7 +186,7 @@
                 "children": [
                   {
                     "表": {
-                      "node_id": "mysql-57cd456bfa774aa4b719bb4abe05387d",
+                      "node_id": "mysql-0f0cd6ec82e343db95ed800a7d964cfc",
                       "keywords": [
                         "表",
                         "table"
@@ -201,7 +201,7 @@
                   },
                   {
                     "函数": {
-                      "node_id": "mysql-cf72570d35814695a3580d75032cbb89",
+                      "node_id": "mysql-a6b27f219f3c47c981ed1dceffa8a1a6",
                       "keywords": [
                         "函数",
                         "function"
@@ -216,7 +216,7 @@
                   },
                   {
                     "用户和权限": {
-                      "node_id": "mysql-9746a550ac814df49b2639c752080a42",
+                      "node_id": "mysql-d32f7bece92e436ba0a0eefd0bc4a86c",
                       "keywords": [
                         "role",
                         "login",
@@ -241,7 +241,7 @@
                   },
                   {
                     "索引和约束": {
-                      "node_id": "mysql-5de6ec33f18649018d33f71030fec5d9",
+                      "node_id": "mysql-8bd217c396eb4f44b76cdb04c5d4674d",
                       "keywords": [
                         "索引",
                         " 约束",
@@ -260,7 +260,7 @@
                   },
                   {
                     " 触发器": {
-                      "node_id": "mysql-df02bd5ac2d942f581a139d490cfaa67",
+                      "node_id": "mysql-d1d26b008711441f82192c33e1fe4dd7",
                       "keywords": [
                         "trigger",
                         "触发器"
@@ -275,7 +275,7 @@
                   },
                   {
                     "数据库扩展": {
-                      "node_id": "mysql-d7e87a239c564fe7a51ffb0cdb8a9693",
+                      "node_id": "mysql-88c53ba3b31f4ae5a4de3809d61cf539",
                       "keywords": [
                         "数据库扩展",
                         "数据库插件",
@@ -301,7 +301,7 @@
                 "children": [
                   {
                     "聚合和分组": {
-                      "node_id": "mysql-01451122a1174b37add9105b89f6dd03",
+                      "node_id": "mysql-06b0b1a126e3440ab67e5ab103ef9e92",
                       "keywords": [
                         "group by",
                         "分组"
@@ -317,7 +317,7 @@
                   },
                   {
                     "连接查询": {
-                      "node_id": "mysql-917489173e594a189b5a48c309533917",
+                      "node_id": "mysql-e12eca4c9358429f9222a3f32e1798f6",
                       "keywords": [
                         "join",
                         "连接查询"
@@ -332,7 +332,7 @@
                   },
                   {
                     "子查询": {
-                      "node_id": "mysql-5316412aed02420ea1a838b85d1ea580",
+                      "node_id": "mysql-787937c95738421ba7b1d5b8aafe55d0",
                       "keywords": [
                         "子查询",
                         "subquery"
@@ -347,7 +347,7 @@
                   },
                   {
                     "分页查询": {
-                      "node_id": "mysql-c091baca5e7446909b067aa87939ca81",
+                      "node_id": "mysql-da7b258f8b0b4597924737902a5018d3",
                       "keywords": [
                         "分页",
                         "limit",
@@ -364,7 +364,7 @@
                   },
                   {
                     "CTE": {
-                      "node_id": "mysql-28f41d302bc14332a1b6328f6e73ec68",
+                      "node_id": "mysql-a69988041f934af1af39f2da4b3e0d58",
                       "keywords": [
                         "common table expression",
                         "cte",
@@ -379,7 +379,7 @@
                   },
                   {
                     "过程化编程": {
-                      "node_id": "mysql-f9326d7b2f43465585d048870b36ba72",
+                      "node_id": "mysql-7b3a382e0cdb4f089fb3b1769c91025f",
                       "keywords": [
                         "plsql",
                         "过程化"
@@ -393,7 +393,7 @@
                   },
                   {
                     "DDL": {
-                      "node_id": "mysql-221322d43c2145da9ccdd0965e0880b1",
+                      "node_id": "mysql-2bd968a23ccb4668b853421206b46eeb",
                       "keywords": [
                         "创建表",
                         "授权",
@@ -430,7 +430,7 @@
                 "children": [
                   {
                     "standby": {
-                      "node_id": "mysql-9d8329cd679c4bb28a64b030ff412cde",
+                      "node_id": "mysql-64d1c4fd8bc845d4900dfdfe1fea4cb9",
                       "keywords": [
                         "standby",
                         "热备份",
@@ -446,7 +446,7 @@
                   },
                   {
                     "流式复制集群": {
-                      "node_id": "mysql-2cc55f62c24f41e584a0d27c308e721b",
+                      "node_id": "mysql-f00ed1bb1dac4cbebb090e6423aaa8a1",
                       "keywords": [
                         "standby",
                         "高可用",
@@ -463,7 +463,7 @@
                   },
                   {
                     "fdw": {
-                      "node_id": "mysql-602728e6acdb4146aa458ada9681ed4a",
+                      "node_id": "mysql-a788c4767113412b811eee21ad298404",
                       "keywords": [
                         "外部数据连接",
                         "fdw"
@@ -488,7 +488,7 @@
                 "children": [
                   {
                     "几何类型和GIS": {
-                      "node_id": "mysql-e1cdc692aefb49a9ac5fd9a67850cde3",
+                      "node_id": "mysql-aa2a0a0cc22a47ac89cdcc9b56951a02",
                       "keywords": [
                         "gis",
                         "地理信息"
@@ -503,7 +503,7 @@
                   },
                   {
                     "JSON和JSONB": {
-                      "node_id": "mysql-1cc35af718984d8d905f22e57f8feb60",
+                      "node_id": "mysql-811d683bd15b4e0ab91c3507199acfbb",
                       "keywords": [
                         "json",
                         "jsonb"
@@ -518,7 +518,7 @@
                   },
                   {
                     "函数": {
-                      "node_id": "mysql-7013285cc6854edf99101562ed483654",
+                      "node_id": "mysql-0f54b3fe17b04a59a2eed504aa280bbe",
                       "keywords": [
                         "函数",
                         "过程",
@@ -540,7 +540,7 @@
                   },
                   {
                     "视图": {
-                      "node_id": "mysql-bb5ccc0866574baaa40132532eaaa88a",
+                      "node_id": "mysql-f715af01120d4fe0be0a633776f6d261",
                       "keywords": [
                         "视图",
                         "view"
@@ -565,7 +565,7 @@
                 "children": [
                   {
                     "递归查询": {
-                      "node_id": "mysql-6fa913985b5a45428a937eb5825b2d33",
+                      "node_id": "mysql-753300de6ef94af7be40fb91a05421a6",
                       "keywords": [
                         "cte",
                         "递归查询",
@@ -582,7 +582,7 @@
                   },
                   {
                     "Window Function": {
-                      "node_id": "mysql-b2d66073e3454bb392867db3d8bf693d",
+                      "node_id": "mysql-0f7b5745d0b44251a678bbd2bbee5f2e",
                       "keywords": [
                         "函数",
                         "function"
@@ -598,7 +598,7 @@
                   },
                   {
                     "透视表 ": {
-                      "node_id": "mysql-85c4a7aa13ba4deebbc040e57d01ebb4",
+                      "node_id": "mysql-88200dcbd2e848a5a1d74c086d8abe57",
                       "keywords": [
                         "透视表",
                         "交叉透视表",
@@ -615,7 +615,7 @@
                   },
                   {
                     "写入和冲突": {
-                      "node_id": "mysql-02027a446b89495e85b99c0ff325ce7f",
+                      "node_id": "mysql-f9f2ae841cf14d079c8433c833d3396d",
                       "keywords": [
                         "conflict",
                         "冲突",
@@ -631,7 +631,7 @@
                   },
                   {
                     "事务": {
-                      "node_id": "mysql-3bdfdf9a8be444759a80c1f2c37d81f2",
+                      "node_id": "mysql-a00dadd0e1e945e597adcd2b71452e07",
                       "keywords": [
                         "事务",
                         "transaction"
@@ -646,7 +646,7 @@
                   },
                   {
                     "索引和优化": {
-                      "node_id": "mysql-c942ff9d420c45db9b785ab6d98ace12",
+                      "node_id": "mysql-7745c930b53c48d18afb4ba14e0510a7",
                       "keywords": [
                         "索引",
                         "index",
@@ -675,7 +675,7 @@
                 "children": [
                   {
                     "数据库问答": {
-                      "node_id": "mysql-d1b81e44a1954a4aa5b377d51eb664c5",
+                      "node_id": "mysql-53775864ecb94bb3af35b6b54c58fe0c",
                       "keywords": [
                         "数据库问答"
                       ],