Question

我有一个内部查询，在外面引用如下。

第一种情况与预期相符，但第二种情况失败。第二种情况有没有解决方法？

我有一个类似的设置，我需要内部查询结果集以便稍后进行调试。

首先情况

select * from 
(select 1 col1 ) tb1

第二情况

select * from 
(select 1 col1 into x_table) tb1

Answer 1

您可以尝试以下解决方案之一：

SET NOCOUNT ON;
GO
CREATE TABLE dbo.MyTable(
EntryDate DATE NOT NULL,
Emptied BIT NOT NULL
);
GO
INSERT INTO dbo.MyTable (EntryDate,Emptied)
VALUES 
('2013-01-01',0),
('2013-01-02',0),
('2013-01-03',1);

-- Solution #1 (SQL2005+)
DECLARE @Output1 TABLE(
    EntryDate DATE NOT NULL,
    Emptied BIT NOT NULL
);
INSERT INTO dbo.MyTable (EntryDate,Emptied)
OUTPUT inserted.* INTO @Output1(EntryDate,Emptied)
SELECT '2013-01-04',0
UNION ALL
SELECT '2013-01-05',0;
PRINT 'Solution #1: @Output1 content'
SELECT * FROM @Output1;


-- Solution #2 (SQL2008+)
DECLARE @Output2 TABLE(
    EntryDate DATE NOT NULL,
    Emptied BIT NOT NULL
);
INSERT INTO @Output2(EntryDate,Emptied)
SELECT *
FROM
(
    INSERT INTO dbo.MyTable (EntryDate,Emptied)
    OUTPUT inserted.*
    VALUES 
    ('2013-01-06',1),
    ('2013-01-07',0),
    ('2013-01-08',0),
    ('2013-01-09',1)
)x
PRINT 'Solution #2: @Output2 content'
SELECT * FROM @Output2;

结果：

/*
Solution #1: @Output1 content
EntryDate  Emptied
---------- -------
2013-01-04 0
2013-01-05 0

Solution #2: @Output2 content
EntryDate  Emptied
---------- -------
2013-01-06 1
2013-01-07 0
2013-01-08 0
2013-01-09 1
*/

SQL Server在内部查询中创建表

1 个答案: