mysql - IF ELSE 不适用于 SQL/MySQL

Question

SQL 多条件检查脚本如下，我已经试过了。

BEGIN
IF  @total == 7 THEN
UPDATE some_table SET time = '09:55' where warehouse_id=@code;
UPDATE some_table SET enable = 0 where warehouse_id=@code;
SELECT * FROM some_table WHERE warehouse_id= @code;
END IF
END

@total 的值为 7 但脚本无法执行并显示

[42000][1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IF @total == 7 THEN' at line 2

Answer 1

Mysql IF ... ELSE 只支持存储过程或触发器

您可以尝试在 where caluse 中移动逻辑 @total = 7。

UPDATE some_table SET time = '09:55' where warehouse_id=@code and @total = 7;
UPDATE some_table SET enable = 0 where warehouse_id=@code and @total = 7;
SELECT * FROM some_table WHERE warehouse_id= @code and @total = 7;