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https://yuanrengu.com/2020/9cfe2ad6.html
在实际的项目开发中有时会有对数据库某字段截取部分的需求,这种场景有时直接通过数据库操作来实现比通过代码实现要更方便快捷些,mysql有很多字符串函数可以用来处理这些需求,如Mysql字符串截取总结:left()、right()、substring()、substring_index()。 一.从左开始截取字符串用法:left(str, length),即:left(被截取字符串, 截取长度) 1S
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https://yuanrengu.com/2020/9cfe2ad6.html
在实际的项目开发中有时会有对数据库某字段截取部分的需求,这种场景有时直接通过数据库操作来实现比通过代码实现要更方便快捷些,mysql有很多字符串函数可以用来处理这些需求,如Mysql字符串截取总结:left()、right()、substring()、substring_index()。 一.从左开始截取字符串用法:left(str, length),即:left(被截取字符串, 截取长度) 1S
The text was updated successfully, but these errors were encountered: