Updating statistics in sql server 2016
output (Figure 2) shows that SQL Server performed 2,172 logical reads against the five base tables.
This article will start from the basics of creating indexed views, and the underlying requirements in order to do so, and then discuss their advantages and the situations in which they can offer a significant boost to query performance.These examples assume you’re running SQL Server Enterprise Edition, which will automatically consider indexes on a view when creating a query execution plan, whereas SQL Server Standard Edition won’t; you’ll need to use the clause of any query you wish to use the view (more on this shortly).When we re-run the query from Listing 3, we get the same result set, but the execution plan, shown in Figure 4, looks very different.Figure 3 We see the exact same execution plan, output, and query cost if we run the query in Listing 1 again.Although the use of the view made writing the query easier, it had no impact on query performance.
Search for updating statistics in sql server 2016:
However, we can add a unique, clustered index to a view, creating an indexed view, and realize potential and sometimes significant performance benefits, especially when performing complex aggregations and other calculations.