Jack Wallen explains how to add data into a MySQL table from the command line.

Microsoft Excel 2010 can convert a worksheet to a data table to help you quickly analyze your related data in formatted rows and columns. When you need to expand the table layout, apply the Home ...

Learn how to add and remove Primary Keys from an Access database table. The primary key's purpose is to promptly associate data from multiple tables and combine that data.

In Microsoft Access, a Query can answer a simple question, merge data from different tables, perform calculations, add, change, and delete data from the database.