Databases
are designed to offer an organized mechanism for storing, managing and retrieving information. They do so through the use of
tables . If you’re familiar with spreadsheets like Microsoft Excel, you’re probably already accustomed to storing data in tabular form. It’s not much of a stretch to make the leap from spreadsheets to databases. Let’s take a look.
Database Tables
Just like Excel tables, database tables consist of
columns and
rows . Each column contains a different type of
attribute and each row corresponds to a single
record . For example, imagine that we were building a database
table that contained names and telephone numbers. We’d probably set up columns named “FirstName”, “LastName” and “TelephoneNumber.” Then we’d simply start adding rows underneath those columns that contained the data we’re planning to store.
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