我有这样的查询:
SELECT field
FROM table
WHERE
(
SELECT COUNT(*)
FROM table2
WHERE table2.field = table.field
)
!=
(
SELECT COUNT(*)
FROM table3
WHERE table3.field = table.field
)
现在我想WHERE
在我的字段列表中包含这些子查询,例如:
SELECT field, count1, count2
FROM table
WHERE
(
SELECT COUNT(*)
FROM table2
WHERE table2.field = table.field
) AS Count1
!=
(
SELECT COUNT(*)
FROM table3
WHERE table3.field = table.field
) AS Count2
这可能吗?当然我可以将这些子查询放在字段列表中,但是我无法比较它们。
有任何想法吗?