Page 58 - TCS ICT Book 8

The City School 2021-2022

5. This window relates EmployeeID

of tblEmployee to EmployeeID of
tblHRData. Now click on the Create

button and now these two tables are
related.

6. The relationship is now saved
automatically and there’s no need to

click on the Save button. Now that we
have the most basic of relationships

created, let us now go to the table side
to see what has happened with this

relationship.
7. Open and enter 5 random records of an

employee in tblEmployees table. Here,
on the left-hand side of each record, you

will see a little plus sign by default. When
you create a relationship, Access will

automatically add a sub-datasheet to
that table.

3.9. Simple and Complex Queries in MS Access

Database tables can hold a lot of records, in some cases,

millions or billions of them. Queries allow you to pull

information from one or more tables based on a set of
search conditions that you define.

A query is a special “question” you apply to the

database to find specific data and get the information
you want. For this task, let’s continue working with the

Employee table we have used before.

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