Question

我想将两个表的结果组合在一起，因为当我单独执行它时，我得到了NULLS

这是我的代码

DECLARE @origSiteID int = 836,
    @NewSiteID int = 838


SELECT tblControls_Rooms.ID, @origSiteID
FROM tblControls_Rooms
WHERE SiteID = @OrigSiteID

SELECT tblControls_Rooms.ID, @NewSiteID
FROM tblControls_Rooms
WHERE SiteID = @newSiteID

我跑的时候：

ID  (No column name)
1942    836
1943    836
1944    836
1945    836
1946    836

和

ID  (No column name)
2025    838
2026    838
2027    838
2028    838

我希望结果是：

ID  (No column name)
1942    836
1943    836
1944    836
1945    836
1946    836
2025    838
2026    838
2027    838
2028    838

Answer 1

Union会工作，你也可以使用......

SELECT ID, SiteID
FROM tblControls_Rooms
WHERE SiteID IN (@OrigSiteID, @NewSiteID)

Answer 2

我认为这对你有用：

SELECT DISTINCT(tblControls_Rooms.ID), tblControls_Rooms.SiteID
FROM tblControls_Rooms
WHERE SiteID = @OrigSiteID
OR SiteID = @newSiteID

您可能不需要DISTINCT

SQL Server加入两个表的结果

2 个答案: