MySQL 的函数和操作符


https://dev.mysql.com/doc/refman/8.0/en/functions.html

无类型操作符:
https://dev.mysql.com/doc/refman/8.0/en/non-typed-operators.html

流程控制函数:条件函数
https://dev.mysql.com/doc/refman/8.0/en/flow-control-functions.html

算数类函数:
https://dev.mysql.com/doc/refman/8.0/en/numeric-functions.html

日期时间函数:
https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html

字符串函数:
https://dev.mysql.com/doc/refman/8.0/en/string-functions.html

类型转换函数
https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html

聚合函数:
https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html

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