In my August 2009 blog post Exploring Composable DML I introduced a new feature in SQL Server 2008 called Composable DML and also outlined one of its limitations; namely that data from the OUTPUT cannot be aggregated prior to insertion. Composable DML does have some useful scenarios however and one of those is in capturing and storing values that ...

I recently inherited a data warehousing SQL Server solution from my good buddy James Rowland-Jones (you may know him from his more auspicious role on the SQLPass board) and it contained a very cool technique of using composable DML (a feature that arrived in SQL Server 2008) to maintain history of updates to a particular table. I knew about ...

SQL Server 2008 includes a new feature called “Composable DML” which I hadn’t heard about until I read Adam’s post Dr. OUTPUT or: How I Learned to Stop Worrying and Love the MERGE. Composable DML is a new feature in T-SQL that allows you to use the data provided by the OUTPUT clause of a DML (i.e. INSERT, UPDATE, DELETE) statement as a derived ...