奇怪的问题.
我的查询看起来像
SELECT DISTINCT ID, `etcetc`, `if/elses over muliple joined tables` FROM
table1 AS `t1`
# some joins, eventually unrelated in that context
WHERE
# some standard where statements, they work/
CASE
WHEN `t1`.`field` = "foo" THEN (`t1`.`anOtherField` != 123 AND `t1`.`anOtherField` != 456 AND `t1`.`anOtherOtherField` != "some String")
WHEN `t1`.`field` = "bar" THEN `t1`.`aSecondOtherField` != 12345
END
#ORDER BY CASE etc. Standard Stuff
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显然MySQL返回错误的rowcount,我认为我的问题在于WHERE ... CASE语句的逻辑.也许用括号?也许我应该选择运营商OR而不是AND?我的第二个WHEN也应该包括括号,即使我只比较一个字段?我应该使用IF而不是CASE吗?
基本上我想要排除一些具有特定值的行,如果字段中的特定值foo或 …