Finally, the other major area of memory (in SQL Server) is known as the execution plan cache, which stores the compiled order of operations the database uses to return the results of your queries.

For this reason, SQL Server stores execution plans in a cache (called the plan cache), so that the stored execution plan is reused for subsequent executions of a given query. These cached ...

SQL Server has an optimizer that usually does a great job of optimizing code for the most effective execution. A query execution plan is the breakdown of how the optimizer will run (or ran ...

Unfortunately, SQL Server never fully integrated scalar UDF support into its execution plan generator. This means it would often perform unnecessary work such as executing a deterministic function ...