MySQL以单个查询翻转一列

Question

是否可以仅使用一个查询翻转布尔列？

Answer 1

UPDATE `tablename` SET columname = !columname 

Answer 2

尝试

SELECT IF (MyBoolean, 0, 1) FROM MyTable; 

OR

UPDATE MyTable SET MyBoolean = IF (MyBoolean, 0, 1);