You may receive the following error message when you run a MERGE statement in Microsoft SQL Server 2008: Msg 8672, Level 16, State 1, Line 1 The MERGE statement attempted to UPDATE or DELETE the same row more than once. This happens when ...
‘MERGE’ statement is a new feature in SQL Server 2008. It can be used to perform insert, update and delete operation on a destination table simultaneously based on the results of a join with a source table. Well, it sounds like a bit confusing, but let's see an example on how it ...
When you run a query by using the MERGE statement in Microsoft SQL Server, you notice that the MERGE statement fails and returns an access violation error at BTreeRow::DisableAccessReleaseOnWait. Status Microsoft has confirmed th...
...比如,这样的一句SQL语句SELECT 1 FROM dual WHERE a = bSELECT 1 FROM dual WHERE a = bJSqlParser可以将其解析为如下对象结构 SQL...来访问这句SQL语句中的各个要素:Statement statement = CCJSqlParserUtil.parse(sqlStr);if (statement instanceof Select...,包括:OracleMS SQL Server and Sybase...
在SQL Server 2008 中,您可以使用 MERGE 语句在一条语句中执行插入、更新或删除操作。MERGE 语句允许您将数据源与目标表或视图联接,然后根据该联接的结果对目标执行多项操作。例如,您可以使用 MERGE 语句执行以下操作: 有条件地在目标表中插入或更新行。
SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics SQL database in Microsoft Fabric The MERGE statement runs insert, update, or delete operations on a target table from the results of a join with a source table. For example, synchronize two tables by inserting, up...
-- MERGE statement with the join conditions specified correctly. USE tempdb; GO BEGIN TRAN; MERGE Target AS T USING Source AS S ON (T.EmployeeID = S.EmployeeID) WHEN NOT MATCHED BY TARGET AND S.EmployeeName LIKE 'S%' THEN INSERT(EmployeeID, EmployeeName) VALUES(S.EmployeeID, S.Employe...
SQL CREATEPROCEDUREdbo.InsertUnitMeasure @UnitMeasureCodeNCHAR(3), @NameNVARCHAR(25)ASBEGINSETNOCOUNTON;-- Update the row if it exists.UPDATEProduction.UnitMeasureSETName= @NameWHEREUnitMeasureCode = @UnitMeasureCode-- Insert the row if the UPDATE statement failed.IF(@@ROWCOUNT =0)BEGININSERTI...
If UPDATE is specified in the <merge_matched> clause, and more than one row of matches a row in target_table based on <merge_search_condition>, SQL Server returns an error. The MERGE statement cannot update the same row more than once, or update and delete the same row. WHEN NOT MATC...
FL 500The MERGE statement updates a target (a table or view) using data from a source (the result of a table reference or the specified input data). Rows in the target that match the input data can be deleted or updated as specified, and rows that do not exist in the target can be...