SQL Server MERGE statement usage and examples SQL Update Statement with Join in SQL Server SQL Server Subquery How to Restore from a SQL Server Backup SQL Server Stored Procedures SQL Server Cursor Examples Aubrey Love Aubrey Love is a self-taught DBA with more than six years of experience desi...
For SQL Server 2008 and newer, Microsoft introduced the exceptionally usefulMERGEoperation which is similar to the aboveINNER JOINmethod, butMERGEattempts to perform both anUPDATEand anINSERTcommand together. 对于SQL Server 2008和更高版本,Microsoft引入了非常有用的MERGE操作,该操作与上述INNER JOIN方法类...
Specifies the number or percent of rows that will be updated. expression can be either a number or a percent of the rows. The rows referenced in the TOP expression of an INSERT, UPDATE, MERGE, or DELETE are not arranged in any order. Parentheses delimiting expression in TOP are required i...
Using MERGE to UPDATE and INSERT Simultaneously 使用MERGE同时更新和插入 For SQL Server 2008 and newer, Microsoft introduced the exceptionally usefulMERGEoperation which is similar to the aboveINNER JOINmethod, butMERGEattempts to perform both anUPDATEand anINSERTcommand together. 对于SQL Server 2008和更...
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, updating, or deleting rows in one table based on differences found in the other table....
MERGE (Transact-SQL)Performs insert, update, or delete operations on a target table based on the results of a join with a source table. For example, you can synchronize two tables by inserting, updating, or deleting rows in one table based on differences found in the other table. Transact...
<dml_statement_with_output_clause> 這是有效的 INSERT、UPDATE、DELETE 或 MERGE 陳述式,可在 OUTPUT 子句中傳回受影響的資料列。 此陳述式不能包含 WITH 子句,也不能以遠端資料表或資料分割檢視表為目標。 如果指定了 UPDATE 或 DELETE,它不能是以資料指標為基礎的 UPDATE 或 DELETE。 來源資料列不能當做...
we can specify only two WHEN MATCHED clauses in the MERGE statement. If two WHEN MATCHED clauses are specified, one clause must have an update operation and the other one must use delete operation. Please refer to below T-SQL script for the example for the MERGE statement with two WHEN ...
<dml_statement_with_output_clause> 在OUTPUT 子句中返回受影响行的有效 INSERT、UPDATE、DELETE 或 MERGE 语句。 语句中不能包含 WITH 子句,且不能以远程表或分区视图为目标。 如果指定了 UPDATE 或 DELETE,则所指定的 UPDATE 或 DELETE 不能是基于游标的。 源行不能作为嵌套的 DML 语句进行引用。
'WHEN MATCHED' cannot appear more than once in a 'UPDATE' clause of a MERGE statement. "EXECUTE AT" with Dynamic Linked Server Name "explicit value must be specified for identity column in table" error in SQL 2000 "FROM clause have the same exposed names. Use correlation names to distingui...