This can improve query performance because the operations are performed within a single statement, therefore, minimizing the number of times the data in the source and target tables are processed. Purchase Date) OUTPUT $action, Inserted.*, Deleted.*; The join operation in the MERGE statement is optimized in the same way as a join in a SELECT statement.
For example, you can use the MERGE statement to perform the following operations: It is important to understand how the source and target data are merged into a single input stream and how additional search criteria can be used to correctly filter out unneeded rows.The Java objects which represent the rows can be reused for newly visible rows.Note: Realm does not currently support Java outside of Android.You can help improve the accuracy of MS prevalence reporting by joining the Society in our collective efforts to advocate for the establishment of a national registry that would track MS prevalence in the US by joining the Society’s activist network.In SQL Server 2008, you can perform multiple data manipulation language (DML) operations in a single statement by using the MERGE statement.