so those other columns do not need to be read. The other performance benefit of columnstore indexes in SQL Server provide is batch execution mode. This mode allows for the sums and averages (or ...

SQL Server 2012 includes a lot of new and exciting ... They cannot be created as filtered index, placed on computed or sparse columns, multiple columns at once, or on an indexed view. Columnstore ...

Read this SQL ... this column. Subqueries, or subselect statements, are a way to use a result set as a resource in another query to limit or refine results. The alternative is often multiple ...