Add some string functions document (#928)

2019-04-16 10:14:49 +08:00
parent e5a5b6da16
commit cdd613c5a4
12 changed files with 237 additions and 16 deletions
--- a/docs/documentation/cn/sql-reference/sql-functions/string-functions/concat.md
+++ b/docs/documentation/cn/sql-reference/sql-functions/string-functions/concat.md
@ -1,13 +1,13 @@
 # concat

-## Description
-
-将多个字符串连接起来, 如果参数中任意一个值是NULL，那么返回的结果就是NULL
-
 ## Syntax

 `VARCHAR concat(VARCHAR,...)`

+## Description
+
+将多个字符串连接起来, 如果参数中任意一个值是 NULL，那么返回的结果就是 NULL
+
 ## Examples

 ```