MySQL查询过滤正确，有些条件被忽略

Question

我得到了以下sql：

SELECT * FROM LISTING WHERE 

paused = 0   and city = 3 or city = 1 or city = 2 
and rent = 1 and bedrooms = 1 and type = 1

我的结果是：它符合city = 3 or city=1 or city=2

的条件

但它忽略了其余部分：and rent = 1 and bedrooms = 1 and type = 1

我希望结果包含多个城市，但需要满足要求：and rent = 1 and bedrooms = 1 and type = 1，现在它只输出多个城市的结果，而不再按租借进行过滤，卧室，类型。

请帮助，谢谢。

Answer 1

由于您使用多个OR条件，因此最好使用IN子句。

SELECT * FROM LISTING 
WHERE paused = 0
AND city IN (1, 2, 3)
AND rent = 1 
AND bedrooms = 1 
AND type = 1

Answer 2

您需要划分OR部分

SELECT * FROM LISTING WHERE 

paused = 0   and (city = 3 or city = 1 or city = 2 )
and rent = 1 and bedrooms = 1 and type = 1

更好的方法是：

SELECT * FROM LISTING WHERE 

paused = 0 and city IN (1,2,3)
and rent = 1 and bedrooms = 1 and type = 1

Answer 3

将其更改为：

SELECT * FROM LISTING WHERE 

paused = 0   and ( city = 3 or city = 1 or city = 2 )
and rent = 1 and bedrooms = 1 and type = 1;

OR

SELECT * FROM LISTING WHERE 

paused = 0   and city IN (1,2,3)
and rent = 1 and bedrooms = 1 and type = 1;