The MERGE statement was introduced into the SQL Standard with SQL2003 and into SQL Server with version 2008. SQL Server goes far beyond the standard and implements the MERGE statement as a very powerful combination of the three statements INSERT, UPDATE and DELETE.
In this talk I am going to show five use cases that you might not have thought of before. We will also cover some issues that you must be aware of to avoid problems when using the MERGE statement.
This is a 100 level No-Slide-Demo-Only talk. To get the most out of it you should feel comfortable using the INSERT, UPDATE and DELETE statements and write simple join queries.