在一个t-sql查询中更新输出内的内部联接
需要将更新输出返回的结果集与另一个表进行内部联接并返回结果。可能吗 下面是一个小例子:在一个t-sql查询中更新输出内的内部联接,sql,sql-server,tsql,Sql,Sql Server,Tsql,需要将更新输出返回的结果集与另一个表进行内部联接并返回结果。可能吗 下面是一个小例子: CREATE TABLE [dbo].[Customers] ( [CustomerId] [int], [CustomerName] [nvarchar](50) ) GO CREATE TABLE [dbo].[Orders] ( [OrderId] [int], [OrderName] [nvarchar](50) ) GO CREATE TABL
CREATE TABLE [dbo].[Customers]
(
[CustomerId] [int],
[CustomerName] [nvarchar](50)
)
GO
CREATE TABLE [dbo].[Orders]
(
[OrderId] [int],
[OrderName] [nvarchar](50)
)
GO
CREATE TABLE [dbo].[CustomerOrders]
(
[CustomerId] [int],
[OrderId] [int]
)
GO
INSERT INTO CustomerOrders (CustomerId, OrderId) VALUES (1, 1)
INSERT INTO CustomerOrders (CustomerId, OrderId) VALUES (1, 2)
INSERT INTO CustomerOrders (CustomerId, OrderId) VALUES (2, 1)
GO
需要更新CustomerOrders表上的OrderId,并返回客户的名称,所有这些都在一个快照中完成。到目前为止,我只能返回CustomerID:
UPDATE CustomerOrders SET OrderId=NULL
OUTPUT Deleted.CustomerId
WHERE OrderId='1'
TSQL/SQL Server 2005+支持UPDATE子句中的联接-请参阅:
UPDATE CUSTOMERORDERS
SET orderid = NULL
OUTPUT c.customername
FROM CUSTOMERORDERS co
JOIN CUSTOMERS c ON c.customerid = co.customerid