Itzik Ben-Gan shows two supported approaches to mimic the GROUPS window frame option, which is part of the SQL standard but currently unsupported in SQL Server.
Queries with multiple ordering needs typically involve sorts in their plans. By following these tips, you can minimize the number of needed sorts. Learn more.
Itzik Ben-Gan describes nested window functions and how they could simplify some tedious query scenarios. He asks for your help voting for these to be included in SQL Server.
Itzik Ben-Gan asks you to invest in SQL Server's future by voting for Row Pattern Recognition, a potential T-SQL syntax extension he deems the next step in the evolution of window functions.
