Page 157 - Computing E-Book Grade 6

The City School 2020-2021

Let’s Review

1. A structured set of data held in a computer that is accessible in various ways is
called Database.

2. Tables are composed of horizontal rows and vertical columns, with small
rectangles called cells.

3. Field is a way of organizing information by type. Whereas, A record is one unit of
information.

4. A primary key in a database uniquely idenfies each record.
5. A foreign key is a column or group of columns in a relational database table that

provides a link between data in two tables.
6. Not null constraint enforces that this field cannot be left unused.

7. Unique constraint enforces that the data entered in this field cannot be repeated or
all the values entered should be unique to each other.

8. A query is a special question you apply to the database to find specific data and
get the information you want.

9. Forms allow to add, edit or display the information stored in the database
10. Reports allow you to view, format and summarize the information database.

My Notes!

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