Is there a way to SELECT and UPDATE rows at the same time?

Question

I\'d like to update a set of rows based on a simple criteria and get the list of PKs that were changed. I thought I could just do something like this but am worried about po

Answer 1

in SQL 2008 a new TSQL statement "MERGE" is introduced which performs insert, update, or delete operations on a target table based on the results of a join with a source table. You can synchronize two tables by inserting, updating, or deleting rows in one table based on differences found in the other table.

http://blogs.msdn.com/ajaiman/archive/2008/06/25/tsql-merge-statement-sql-2008.aspx http://msdn.microsoft.com/en-us/library/bb510625.aspx