regex

data/2.MySQL中阶/1.数据库组成/3.存储过程和函数/create_function.json

 {
   "type": "code_options",
-  "author": null,
+  "author": "Mars",
   "source": "create_function.md",
   "notebook_enable": false,
   "exercise_id": "213471661dd244f58bd0d2e0928a0100"

data/2.MySQL中阶/1.数据库组成/6.存储引擎/config.json

 {
   "node_id": "mysql-af89d54d66974111b4f67aeba2af7161",
-  "keywords": ["engine", "innodb", "myisam"],
+  "keywords": [
+    "engine",
+    "innodb",
+    "myisam"
+  ],
   "children": [],
-  "export": [],
+  "export": [
+    "upgrade_engine.json"
+  ],
   "keywords_must": [
-    ["mysql", "存储引擎"]
+    [
+      "mysql",
+      "存储引擎"
+    ]
   ]
 }
\ No newline at end of file

data/2.MySQL中阶/1.数据库组成/6.存储引擎/upgrade_engine.json

+{
+  "type": "code_options",
+  "author": "ccat",
+  "source": "upgrade_engine.md",
+  "notebook_enable": false,
+  "exercise_id": "87ceaa4ffe494e219ff20c91eee8a2ec"
+}
\ No newline at end of file

data/2.MySQL中阶/1.数据库组成/6.存储引擎/upgrade_engine.md

+# 存储引擎修改
+
+Goods 表的存储引擎是 MyISAM，Joe 需要把它修改为 InnoDB，他应该怎么做？
+
+## 答案
+
+```mysql
+alter table goods engine innodb;
+```
+
+## 选项
+
+### A
+
+```mysql
+alter table goods set engine innodb;
+```
+
+### B
+
+1. 将 goods 表的数据导出
+2. 重建 goods 表，建表时指定 `engine=innodb`
+3. 导入数据
+
+### C
+
+```mysql
+alter table goods add engine innodb;
+```
+
+### D
+
+所有都不对
\ No newline at end of file

data/2.MySQL中阶/2. 查询/2. WHERE/config.json

 {
   "node_id": "mysql-2296dbe96d584a52bd28a3ad5f655518",
-  "keywords": [],
+  "keywords": ["where"],
   "children": [],
   "export": [
     "between.json"

data/2.MySQL中阶/2. 查询/3.CASE/config.json

 {
   "node_id": "mysql-8e6cd4d5f4b446a2bc3f5402de9bd49c",
   "keywords": [
+    "when",
     "case",
     "pivot",
     "透视表"

data/2.MySQL中阶/2. 查询/5.ORDER BY/config.json

 {
   "node_id": "mysql-fa20a81805b44975aed265dd058c542a",
-  "keywords": [],
+  "keywords": ["order by", "排序"],
   "children": [],
   "export": [
     "order_by.json"

data/2.MySQL中阶/2. 查询/7.正则表达式/config.json

 {
   "node_id": "mysql-e6cbbff27cd04bc0b61ebbb3ef27d4b2",
-  "keywords": ["regex", "regular"],
+  "keywords": [
+    "regex",
+    "regular"
+  ],
   "children": [],
-  "export": [],
+  "export": [
+    "regex.json"
+  ],
   "keywords_must": [
-    ["mysql", "正则表达式"]
+    [
+      "mysql",
+      "正则表达式"
+    ]
   ],
   "keywords_forbid": [],
   "group": 0

data/2.MySQL中阶/2. 查询/7.正则表达式/regex.json

+{
+  "type": "code_options",
+  "author": "ccat",
+  "source": "regex.md",
+  "notebook_enable": false,
+  "exercise_id": "1b35ec1703954c42be54d361a97ca3d9"
+}
\ No newline at end of file

data/2.MySQL中阶/2. 查询/7.正则表达式/regex.md

+# 正则表达式
+
+Joe 想要找出 goods 表中所有名称包含牛奶的冰激凌，他应该怎么写这个查询？
+
+## 答案
+
+```mysql
+select * 
+from goods
+where name regexp '牛奶.*冰激凌';
+```
+
+## 选项
+
+### A
+
+```mysql
+select *
+from goods
+where name like '牛奶%冰激凌'
+```
+
+
+### B
+
+```mysql
+select * 
+from goods
+where name like '牛奶.*冰激凌';
+```
+
+### C
+
+```mysql
+select * 
+from goods
+where name regexp '牛奶冰激凌';
+```
+
+### D
+
+所有都不对
\ No newline at end of file

data/2.MySQL中阶/3.内置函数/3.窗口函数/distrubute.json

 {
   "type": "code_options",
-  "author": null,
+  "author": "Mars",
   "source": "distrubute.md",
   "notebook_enable": false,
   "exercise_id": "815be880ae8141f9b562638e167dcedb"

data/tree.json

@@ -758,7 +758,9 @@
                   {
                     " WHERE": {
                       "node_id": "mysql-2296dbe96d584a52bd28a3ad5f655518",
-                      "keywords": [],
+                      "keywords": [
+                        "where"
+                      ],
                       "children": [],
                       "keywords_must": [
                         [
@@ -774,6 +776,7 @@
                     "CASE": {
                       "node_id": "mysql-8e6cd4d5f4b446a2bc3f5402de9bd49c",
                       "keywords": [
+                        "when",
                         "case",
                         "pivot",
                         "透视表"
@@ -809,7 +812,10 @@
                   {
                     "ORDER BY": {
                       "node_id": "mysql-fa20a81805b44975aed265dd058c542a",
-                      "keywords": [],
+                      "keywords": [
+                        "order by",
+                        "排序"
+                      ],
                       "children": [],
                       "keywords_must": [
                         [