If you want to know what-all motherboards are used in a product line, in classic (non-CTE or Common Table Expression) SQL you have to walk tables and issue queries in multiple steps.

SQL is a convenient way to manage and query your data, but badly written queries can tie up your database. Here are seven common SQL traps and how to avoid them.

SQL lets you use one command to quickly create a new table containing a subset of records from a larger table while working in Access. Sound complicated? It's not, as Mary Ann Richardson shows us.