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doris/docs/zh-CN/docs/sql-manual/sql-functions/string-functions/upper.md
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title, language
title language
upper zh-CN

upper

description

Syntax

VARCHAR upper(VARCHAR str)

将参数中所有的字符串都转换成大写,此函数的另一个别名为ucase

example

mysql> SELECT upper("aBc123");
+-----------------+
| upper('aBc123') |
+-----------------+
| ABC123          |
+-----------------+

keywords

UPPER