使用表变量将多行插入SQL Server表

Question

我目前正在使用SQL Server 2008，我正在尝试使用表变量创建一个语句，以在表中插入多行。 就目前而言，我必须在4个不同的位置插入信息（2个选择语句，1个插入和1个更新），但是希望能够创建单个表变量，所以我只需要输入信息一次。 任何帮助/建议将不胜感激。

这是我想要改变的一个例子。

PRINT 'Before'
SELECT  GROUPID, ModifiedBy, ModifiedDate
FROM TableXYZ
WHERE groupID in(ID1, ID2, ID3, ID4)                                                            

BEGIN TRAN


Insert into TableXYZ
 (GROUPID)
VALUES
 (ID1), (ID2), (ID3), (ID4)                                                             



UPDATE TableXYZ
SET existingdays = 15
    ,ModifiedBy = @userID
    ,ModifiedDate = @today
WHERE groupID in(ID1, ID2, ID3, ID4)                                                            


Set  @RowCount =  @@ROWCOUNT 


PRINT 'After '

SELECT  GROUPID, ModifiedBy, ModifiedDate
FROM TableXYZ
WHERE groupID in(ID1, ID2, ID3, ID4)    

Answer 1

这只是一次输入信息的目的吗？

DECLARE @IDList TABLE
(
    ID INT
)

INSERT INTO @IDList ( ID )
VALUES
     (ID1)
    ,(ID2)
    ,(ID3)
    ,(ID4)

PRINT 'Before'
SELECT  GROUPID, ModifiedBy, ModifiedDate
FROM TableXYZ AS T
    INNER JOIN @IDList AS L
        ON T.GroupID = L.ID

BEGIN TRAN


Insert into TableXYZ
 (GROUPID)
SELECT ID
FROM @IDList


UPDATE TableXYZ
SET existingdays = 15
    ,ModifiedBy = @userID
    ,ModifiedDate = @today
FROM TableXYZ AS T
    INNER JOIN @IDList AS L
        ON T.GroupID = L.ID


Set  @RowCount =  @@ROWCOUNT 


PRINT 'After '

SELECT  GROUPID, ModifiedBy, ModifiedDate
FROM TableXYZ AS T
    INNER JOIN @IDList AS L
        ON T.GroupID = L.ID

Answer 2

要从table2插入table1值：

INSERT INTO table1 ( column1 )
SELECT  col1
FROM    table2