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ZhangYu0123 1d9b3aeee7 [Doc] Repair document format (#4336 )

The error format '##keyword' in a lot of docs. This pr is to repair document format. #4335

2020-08-13 23:39:41 +08:00

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title, language

title	language
instr	zh-CN

instr

description

Syntax

INT instr(VARCHAR str, VARCHAR substr)

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。

example

mysql> select instr("abc", "b");
+-------------------+
| instr('abc', 'b') |
+-------------------+
|                 2 |
+-------------------+

mysql> select instr("abc", "d");
+-------------------+
| instr('abc', 'd') |
+-------------------+
|                 0 |
+-------------------+

keyword

INSTR

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