我有以下结果集:
request_id | p_id
66 | 10
66 | 10
66 | 10
66 | 22
66 | 22
76 | 23
76 | 24
我正在尝试选择excludes
记录的具有某些组合值的行:
request_id | product_id
66 | 10
76 | 23
因此,输出结果集应仅包含以下记录:
66 | 22
66 | 22
76 | 24
我尝试做:
select * from `table`
where request_id NOT IN (66, 76) AND product_id NOT IN (10, 22)
但这给我空的结果集。
如何仅排除这两个值的组合?
答案 0 :(得分:5)
您可以在下面尝试-
select * from `table`
where (request_id, p_id) NOT IN ((66, 10),(76,23))
输出:
request_id p_id
66 22
66 22
76 24
答案 1 :(得分:2)
尝试使用类似这样的内容:
SELECT DISTINCT *
FROM TABLE1
WHERE TABLE1.request_id NOT IN
(
SELECT r_id
FROM TABLE2
)
AND TABLE1.p_id NOT IN
(
SELECT p_id
FROM TABLE2
)
答案 2 :(得分:0)
那是一个更好的方法:
SELECT DISTINCT *
FROM TABLE1
LEFT JOIN TABLE2 ON TABLE1.request_id = TABLE2.r_id
AND TABLE1.p_id = TABLE2.p_id
WHERE TABLE2.p_id IS NULL