一、Oracle的merge into语法 1、语法 merge语法是根据源表对目标表进行匹配查询,匹配成功时更新,不成功时插入。 MERGE INTO [target-table] A USING [source-table sql] B ON([conditional expression] and [...]...)WHEN MATCHED THEN[UPDATE sql]WHEN NOT MATCHED THEN[INSERT sql] 2、实验 1)环境准备 ...
In SQL Server 2008, you can perform insert, update, or delete operations in a single statement using the MERGE statement. The MERGE statement allows you to join a data source with a target table or view, and then perform multiple actions against the target based on the results of that join...
@Name = 'New Test Value'; EXEC InsertUnitMeasure @UnitMeasureCode = 'XYZ', @Name = 'Test Value'; EXEC InsertUnitMeasure @UnitMeasureCode = 'ABC', @Name = 'Another Test Value';SELECT*FROM#MyTempTable;-- CleanupDELETEFROMProduction.UnitMeasureWHEREUnitMeasureCodeIN('ABC','XYZ');DROPTABLE...
For every insert, update, or delete action specified in the MERGE statement, SQL Server fires any corresponding AFTER triggers defined on the target table, but doesn't guarantee on which action to fire triggers first or last. Triggers defined for the same action honor the order you specify....
ConflictRetention Gets or sets the number of days that conflict data rows are retained in conflict tables. (从 Publication 继承。) ConnectionContext Gets or sets the connection to an instance of Microsoft SQL Server. (从 ReplicationObject 继承。) CreateSnapshotAgentByDefault Gets or sets if the...
MSmerge_past_partition_mappings (Transact-SQL) Чланак 01.03.2023. Applies to:SQL Server TheMSmerge_past_partition_mappingstable stores one row for each partition id a given changed row used to belong to, but no longer belongs to. This table is stored in the publication ...
Merges an array of DataRow objects into the current DataSet, preserving or discarding changes in the DataSet and handling an incompatible schema according to the given arguments. Merge(DataSet, Boolean, MissingSchemaAction) Merges a specified DataSet and its schema with the current DataSet, preserving...
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SQL Server 2008的新语句merge 根据一个源数据表对另一个数据表进行确定性的插入、更新和删除这样复杂的操作,运用新的MERGE语句,开发者用一条命令就可以完成。 对两个表进行信息同步时,有三步操作要进行。...推荐几个关于merge使用的文章 http://www.soaspx.com/dotnet/sql/mssql/sql2008/sqlserver2008_2011053...
For example, if you are merging a partition that contains data based on the slice [AllTime].[1998].[Quarter2] into a partition that contains [AllTime].[1998].[Quarter1], the target partition's slice must be set to the parent of the two slices that differ, in this case [AllTime]....