2022-09-02 mysql-in函数官方说明记录

MySQL :: MySQL 8.0 Reference Manual :: 12.1 Built-In Function and Operator Reference

MySQL :: MySQL 8.0 Reference Manual :: 12.4.2 Comparison Functions and Operators

• expr IN (value,...)

  Returns 1 (true) if expr is equal to any of the values in the IN() list, else returns 0 (false).

  Type conversion takes place according to the rules described in