Common commands in the SQL language include "SELECT," used to extract data matching some criteria from the database; "INSERT," used to add new rows to the database; and "UPDATE," used to update ...

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) a query.

If you work with databases in any way, a knowledge of SQL will be increasingly important, and The Complete 2021 SQL Master Class Bundle can show you the ins and outs of how it works.