Rows and columns. That is how data is stored. A database is essentially a table consisting of rows and columns for storing data, with additional functionality built in. For example, one column or combinations of columns can form a native key. This would be used to determine the physical order of the rows in the table. DB2 and other SQL databases, allow various non-key columns to be used to access and order the rows. Routines built into the database software can analyze the pattern of alternate key usage to allow for the setting up of additional secondary, alternate indexes to enhance performance with large quantities of data or rows.

The most popular and widely used relational database in use by websites is MySQL. MySQL delivers data in a highly effective and efficient manner, Plus, offers a powerful interface for web and database administrators to manipulate the tables, without knowing SQL commands.