MYSQL AND OR条件问题
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- 2016-06-23 13:38:191125瀏覽
SELECT id,name FROM test WHERE type_1 = 1 OR type_2 = 1 AND id = 1
这样会印出全部，无视了id=1这个条件，要怎么改才对呢?
回复讨论(解决方案)
SELECT id,name FROM test WHERE (type_1 = 1 OR type_2 = 1) AND id = 1
SELECT id,name FROM test WHERE type_1 = 1 OR (type_2 = 1 AND id = 1)
SELECT id,name FROM test WHERE (type_1 = 1 OR type_2 = 1) AND id = 1
要看你的实际需要
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