1. The first
thing to understand is exactly what a database is. Quite
simply a database is a whole load of information grouped together.
If you think about the word "database", you can remember what it
is by thinking that it is a "base" for all your "data"!
are useful tools as they can hold huge amounts of data that you
can use to find out answers. When you ask a database a
question it is known as "querying the database".
3. The data can be
anything from names and addresses to complex information such as all
the different parts that are needed to make a car. At school
you might use a database to search through information about castles
in history or census data for geography.
4. A database uses "tables" of
data. Each table contains "records" which are
shown below as "rows":