Question

我有一个表格类型，我在存储过程中作为变量发送。

CREATE TYPE OperationKeysTableType AS TABLE 
(
    [KeysId] [int] NOT NULL,                
    [OperationId] [int] NOT NULL,                
    [IsChecked] [bit] NOT NULL
)

然后我想使用这个表进行搜索，如果它们匹配或不匹配，插入或删除但是只有在没有检查时才这样：

MERGE INTO dbo.tblOperationKeys AS T
USING (SELECT VT.KeysId, VT.OperationId as OperationId FROM @ValuesTable AS VT) AS S
ON T.KeysId = S.KeysId AND T.OperationId = S.OperationId
WHEN MATCHED AND S.IsChecked = 0 THEN --DELETE
    DELETE 
WHEN NOT MATCHED THEN--INSERT
    INSERT (KeysId, OperationId) VALUES (S.KeysId, S.OperationId)   
OUTPUT $action AS ChangesMade, inserted.OperationKeysId AS new_OperationKeysId, deleted.OperationKeysId AS old_OperationKeysId;

我的问题是SQL告诉我IsChecked无效。对我做错了什么的想法？

Answer 1

您没有选择IsChecked。

在这一行：

USING (SELECT VT.KeysId, VT.OperationId as OperationId FROM @ValuesTable AS VT) AS S

你需要：

USING (SELECT VT.KeysId, VT.OperationId as OperationId, VT.IsChecked as IsChecked FROM @ValuesTable AS VT) AS S

MERGE和比赛条件

1 个答案: