Merge Help document to documentation (#1586)

Help document collation (integration of help and documentation documents)
2019-08-07 21:31:53 +08:00
parent 41cbedf57d
commit 4c2a3d6da4
181 changed files with 3577 additions and 3971 deletions
--- a/docs/documentation/cn/sql-reference/sql-functions/string-functions/instr.md
+++ b/docs/documentation/cn/sql-reference/sql-functions/string-functions/instr.md
@ -1,14 +1,13 @@
 # instr
-
-## Syntax
+## description
+### Syntax

 `INT instr(VARCHAR str, VARCHAR substr)`

-## Description

 返回 substr 在 str 中第一次出现的位置（从1开始计数）。如果 substr 不在 str 中出现，则返回0。

-## Examples
+## example

 ```
 mysql> select instr("abc", "b");
@ -25,3 +24,5 @@ mysql> select instr("abc", "d");
 |                 0 |
 +-------------------+
 ```
+##keyword
+INSTR