At some point in your career as a data professional, you are going to fill up an entire drive with data. It is not a question of “if,” but a…
The SQL Server plan cache can be a good tool to use in identifying current performance issues and in looking for new ways to improve performance.
The SQL Server plan cache stores details on statements that are executed over time. Each time a statement executes, SQL Server will look inside the plan cache first to see if a plan already exists. If a plan exists, SQL Server will use that plan instead of spending time compiling a new plan. This ensures the engine operates efficiently.