如何比较SQL Server中的两行

我习惯于mysql，当你可以毫无问题地做到这一点时。我想在SQLServer中运行以下语句，但是它没有看到列C_计数

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SQL Server不允许在WHERE子句中使用别名。你必须有这样的东西：

SELECT *, Customers - C_COUNT "Difference"
FROM  (
    SELECT 
    A.customers AS CUSTOMERS, 
    (SELECT COUNT(ID) 
    FROM Partners_customers B WHERE A.ID = B.PIID) 
    AS C_COUNT FROM Partners A
) t
WHERE CUSTOMERS <> [C_COUNT]

或者，更好的方法是消除内联计数：

select A.customers, count(b.id)
FROM Partners A
LEFT JOIN Partners_customers B ON A.ID = B.PIID
Group By A.ID
having a.customers <> count(b.id)

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SQL Server不允许在WHERE子句中使用别名。你必须有这样的东西：

SELECT *, Customers - C_COUNT "Difference"
FROM  (
    SELECT 
    A.customers AS CUSTOMERS, 
    (SELECT COUNT(ID) 
    FROM Partners_customers B WHERE A.ID = B.PIID) 
    AS C_COUNT FROM Partners A
) t
WHERE CUSTOMERS <> [C_COUNT]

或者，更好的方法是消除内联计数：

select A.customers, count(b.id)
FROM Partners A
LEFT JOIN Partners_customers B ON A.ID = B.PIID
Group By A.ID
having a.customers <> count(b.id)

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完全未经测试

(select * from TabA 
 minus
 select * from TabB) -- Rows in TabA not in TabB
union all
( 
 select * from TabB 
 minus
 select * from TabA
) -- rows in TabB not in TabA

---

完全未经测试

(select * from TabA 
 minus
 select * from TabB) -- Rows in TabA not in TabB
union all
( 
 select * from TabB 
 minus
 select * from TabA
) -- rows in TabB not in TabA

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或者：复制/粘贴相关子查询。或者：复制/粘贴相关子查询。