doris/docs/documentation/cn/sql-reference/sql-functions/string-functions/left.md

left

Syntax

VARCHAR left(VARCHAR str)

Description

它返回具有指定长度的字符串的左边部分

Examples

mysql> select left("Hello doris",5);
+------------------------+
| left('Hello doris', 5) |
+------------------------+
| Hello                  |
+------------------------+