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doris/docs/zh-CN/sql-reference/sql-functions/string-functions/char_length.md
yangzhg 94b3a2bd50 [Bug] Fix string functions not support multibyte string (#3345)
Let string functions support utf8 encoding
2020-05-08 12:52:46 +08:00

1.3 KiB

title, language
title language
CHAR_LENGTH zh-CN

char_length

description

Syntax

INT char_length(VARCHAR str)

返回字符串的长度,对于多字节字符,返回字符数, 目前仅支持utf8 编码。

example

mysql> select char_length("abc");
+--------------------+
| char_length('abc') |
+--------------------+
|                  3 |
+--------------------+

mysql> select char_length("中国");
+------------------- ---+
| char_length('中国')   |
+-----------------------+
|                     2 |
+-----------------------+

##keyword CHAR_LENGTH