A database is simply a bunch of information (data) stored on a computer
The most common type of database is a relational database. Relational databases consist of tables of data with clearly defined columns.
Along the top of the spreadsheet are the column headings: Name, Address, Telephone Number, Email Address, etc. Down the left side you might have customer identification numbers, and in the middle all the data.
First you create the tables, specifying the name of each column and the type of data it will contain (a number, a piece of text or a date).
Then you relate bits of data in one table
Finally, you type in or import all that valuable data.
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