clean tree

data/1.MySQL初阶/1.基本概念/1.关系型数据库/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-67b5ccfe50d34cf99c38d0e63f95c59e",
   "keywords": [
     "关系型数据库",
     "database",

data/1.MySQL初阶/1.基本概念/2.服务器和客户端/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-86367300e7b643e18caf7b9349ab705a",
   "keywords": [
     "server",
     "client",

data/1.MySQL初阶/1.基本概念/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-635d4c57d06a4e1abaecbd03d9f5e1ba",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/1.MySQL初阶/2.安装和使用/1.安装/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-95d0b7e5493e478f85ca49a77a13d194",
   "keywords": [
     "安装",
     "PostgreSQL"

data/1.MySQL初阶/2.安装和使用/2.登录/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-932a42b96ee34177b3d980c30cbab717",
   "keywords": [
     "登录",
     "身份验证",

data/1.MySQL初阶/2.安装和使用/3.使用/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-5720037d32894078aa03106e4d798984",
   "keywords": [
     "login",
     "connect"

data/1.MySQL初阶/2.安装和使用/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-c6fb4b9d5c13492289fd14d06911c1e5",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/1.MySQL初阶/3.查询数据/1.psql/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-79f255c8025d4379b9782e445d37b8b5",
   "keywords": [
     "sql",
     "psql",

data/1.MySQL初阶/3.查询数据/2.SQL基本语法/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-b1416d413b75470697201b9d6ffeebff",
   "keywords": [
     "语法",
     "select"

data/1.MySQL初阶/3.查询数据/3.SQL、DML和DDL/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-d62d60e24fe14f049712c9db8cf25ea9",
   "keywords": [
     "DML",
     "insert",

data/1.MySQL初阶/3.查询数据/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-ffe7d96945264633aa3ba54acd22b3a9",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/2.MySQL中阶/1.基本结构/1.表/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-0f0cd6ec82e343db95ed800a7d964cfc",
   "keywords": [
     "表",
     "table"

data/2.MySQL中阶/1.基本结构/2.函数/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-a6b27f219f3c47c981ed1dceffa8a1a6",
   "keywords": [
     "函数",
     "function"

data/2.MySQL中阶/1.基本结构/3.用户和权限/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-d32f7bece92e436ba0a0eefd0bc4a86c",
   "keywords": [
     "role",
     "login",

data/2.MySQL中阶/1.基本结构/4.索引和约束/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-8bd217c396eb4f44b76cdb04c5d4674d",
   "keywords": [
     "索引",
     " 约束",

data/2.MySQL中阶/1.基本结构/5. 触发器/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-d1d26b008711441f82192c33e1fe4dd7",
   "keywords": [
     "trigger",
     "触发器"

data/2.MySQL中阶/1.基本结构/6.数据库扩展/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-88c53ba3b31f4ae5a4de3809d61cf539",
   "keywords": [
     "数据库扩展",
     "数据库插件",

data/2.MySQL中阶/1.基本结构/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-eb03e9500ad143148847cd5130da4787",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/2.MySQL中阶/2.服务端编程/1.聚合和分组/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-06b0b1a126e3440ab67e5ab103ef9e92",
   "keywords": [
     "group by",
     "分组"

data/2.MySQL中阶/2.服务端编程/2.连接查询/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-e12eca4c9358429f9222a3f32e1798f6",
   "keywords": [
     "join",
     "连接查询"

data/2.MySQL中阶/2.服务端编程/3.子查询/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-787937c95738421ba7b1d5b8aafe55d0",
   "keywords": [
     "子查询",
     "subquery"

data/2.MySQL中阶/2.服务端编程/4.分页查询/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-da7b258f8b0b4597924737902a5018d3",
   "keywords": [
     "分页",
     "limit",

data/2.MySQL中阶/2.服务端编程/5.CTE/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-a69988041f934af1af39f2da4b3e0d58",
   "keywords": [
     "common table expression",
     "cte",

data/2.MySQL中阶/2.服务端编程/6.过程化编程/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-7b3a382e0cdb4f089fb3b1769c91025f",
   "keywords": [
     "plsql",
     "过程化"

data/2.MySQL中阶/2.服务端编程/7.DDL/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-2bd968a23ccb4668b853421206b46eeb",
   "keywords": [
     "创建表",
     "授权",

data/2.MySQL中阶/2.服务端编程/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-64454fb14452475a8c3b348bf4d840cc",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/3.MySQL高阶/1.集群和复制/1.standby/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-64d1c4fd8bc845d4900dfdfe1fea4cb9",
   "keywords": [
     "standby",
     "热备份",

data/3.MySQL高阶/1.集群和复制/2.流式复制集群/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-f00ed1bb1dac4cbebb090e6423aaa8a1",
   "keywords": [
     "standby",
     "高可用",

data/3.MySQL高阶/1.集群和复制/3.fdw/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-a788c4767113412b811eee21ad298404",
   "keywords": [
     "外部数据连接",
     "fdw"

data/3.MySQL高阶/1.集群和复制/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-6c50f07505954be1b61cf0bf6365536d",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/3.MySQL高阶/2.高级数据类型/1.几何类型和GIS/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-aa2a0a0cc22a47ac89cdcc9b56951a02",
   "keywords": [
     "gis",
     "地理信息"

data/3.MySQL高阶/2.高级数据类型/2.JSON和JSONB/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-811d683bd15b4e0ab91c3507199acfbb",
   "keywords": [
     "json",
     "jsonb"

data/3.MySQL高阶/2.高级数据类型/3.函数/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-0f54b3fe17b04a59a2eed504aa280bbe",
   "keywords": [
     "函数",
     "过程",

data/3.MySQL高阶/2.高级数据类型/4.视图/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-f715af01120d4fe0be0a633776f6d261",
   "keywords": [
     "视图",
     "view"

data/3.MySQL高阶/2.高级数据类型/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-ed11f5b80bef4dbd86b5e1c5a091413d",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/3.MySQL高阶/3.SQL高级技巧/1.递归查询/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-753300de6ef94af7be40fb91a05421a6",
   "keywords": [
     "cte",
     "递归查询",

data/3.MySQL高阶/3.SQL高级技巧/2.Window Function/config.json

@@ -4,7 +4,7 @@
     "function"
   ],
   "children": [],
-  "node_id": "",
+  "node_id": "mysql-0f7b5745d0b44251a678bbd2bbee5f2e",
   "export": [
     "salary.json"
   ],

data/3.MySQL高阶/3.SQL高级技巧/3.透视表 /config.json

 {
-  "node_id": "",
+  "node_id": "mysql-88200dcbd2e848a5a1d74c086d8abe57",
   "keywords": [
     "透视表",
     "交叉透视表",

data/3.MySQL高阶/3.SQL高级技巧/4.写入和冲突/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-f9f2ae841cf14d079c8433c833d3396d",
   "keywords": [
     "conflict",
     "冲突",

data/3.MySQL高阶/3.SQL高级技巧/5.事务/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-a00dadd0e1e945e597adcd2b71452e07",
   "keywords": [
     "事务",
     "transaction"

data/3.MySQL高阶/3.SQL高级技巧/6.索引和优化/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-7745c930b53c48d18afb4ba14e0510a7",
   "keywords": [
     "索引",
     "index",

data/3.MySQL高阶/3.SQL高级技巧/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-0cc4dd0b6c024a9e92abb4226bf7ff79",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []

data/3.MySQL高阶/4.进阶任务/1.数据库问答/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-53775864ecb94bb3af35b6b54c58fe0c",
   "keywords": [
     "数据库问答"
   ],

data/3.MySQL高阶/4.进阶任务/config.json

 {
-  "node_id": "",
+  "node_id": "mysql-022a17432ef84a489620c05bdd8f7911",
   "keywords": [],
   "keywords_must": [],
   "keywords_forbid": []