Alan.B (9/28/2016)
T-SQL - that is a skill you need grow if you're going to be a BI Developer. Bad SQL (something I make a living cleaning up) ruins your BI system. Bad SQL is often why SSRS reports are slow, SSIS packages choke and SSAS cube processing takes forever
+1000 to that!
--Jeff Moden
Change is inevitable... Change for the better is not.