Sql server 使用EXCEPT或INTERSECT仅显示不匹配的行

假设我有2个结果集（2个查询）

我知道

query1，但query2除外

FIELDNAME   VALUE
field2      13.00
field3      4.00

但我真正想要的是从查询的两个方面展示任何存在差异的情况：

FIELDNAME   VALUE
field2      13.00
field3      4.00
field2      14.00
field3      6.00

可能吗？我想我可以在临时表中执行SELECT UNION。然后删除不存在具有不同值的fieldname的所有行。有更简单的吗

似乎我可以以某种方式将INTERSECT、UNION和Exception组合起来，最终得到这个，但在概念化方面没有太多运气。
我认为您应该能够通过使用
Exception
两次并在结果上使用
UNION ALL
来获得所需：

-- records from the table1 that are not in table2
(SELECT * FROM table1 
EXCEPT 
SELECT * FROM table2)

UNION ALL

-- records from the table2 that are not in table1
(SELECT * FROM table2 
EXCEPT 
SELECT * FROM table1)

另一种方法是使用
UNION
获得所有表的组合，然后使用
EXCEPT
删除所有相交记录：

-- Union of both tables
(SELECT * FROM table1 
UNION ALL
SELECT * FROM table2)

EXCEPT   -- Exclude the records ...

-- ... that are in both tables
(SELECT * FROM table1 
INTERSECT 
SELECT * FROM table2)

就像手术一样：

DECLARE @Table1 TABLE(Name nvarchar(20), Value decimal)
DECLARE @Table2 TABLE(Name nvarchar(20), Value decimal)

INSERT INTO @Table1 
VALUES
(N'field1', 20.00),
(N'field2', 13.00),
(N'field3',  4.00)


INSERT INTO @Table2 
VALUES
(N'field1', 20.00),
(N'field2', 14.00),
(N'field3',  6.00)


SELECT *
FROM
(
    SELECT *
    FROM @Table1 AS t
    EXCEPT (SELECT * FROM @Table2 AS t)
) AS a
UNION
SELECT *
FROM 
(
    SELECT *
    FROM @Table2 AS t
    EXCEPT (SELECT * FROM @Table1 AS t)
) AS b

根据您的帖子，您已经尝试了INTERSECT、UNION和EXCEPT组合，但没有得到输出

尝试使用（相交、并集和除外）获得它

DECLARE @Table1 TABLE(Name nvarchar(20), Value decimal(18,2))
DECLARE @Table2 TABLE(Name nvarchar(20), Value decimal(18,2))

INSERT INTO @Table1 
VALUES
(N'field1', 20.00),
(N'field2', 13.00),
(N'field3',  4.00)


INSERT INTO @Table2 
VALUES
(N'field1', 20.00),
(N'field2', 14.00),
(N'field3',  6.00)

select *From @Table1
union
select *From @Table2
except
select *From @Table1
intersect
select *From @Table2

DECLARE @Table1 TABLE(Name nvarchar(20), Value decimal(18,2))
DECLARE @Table2 TABLE(Name nvarchar(20), Value decimal(18,2))

INSERT INTO @Table1 
VALUES
(N'field1', 20.00),
(N'field2', 13.00),
(N'field3',  4.00)


INSERT INTO @Table2 
VALUES
(N'field1', 20.00),
(N'field2', 14.00),
(N'field3',  6.00)

select *From @Table1
union
select *From @Table2
except
select *From @Table1
intersect
select *From @Table2