Implementing the Theory

dBase Operations in MS Access

Databases:

In Access, a database consists of:

• Tables

• Queries

• Forms

• Reports

Tables:

Tables are two dimensional structures to organise data.

Data decomposition divides the data into “topics”. Each topic is stored in a table.

The table’s characteristics can be specified in Design View.

Tables can be populated in Data View.

Queries:

Queries are used to retrieve data from the database (sometimes by combining data from different tables).

The command SELECT begins all queries in Access. As in SQL, the SELECT is used to Select, Project, and Join.

Forms:

Forms are used primarily to provide a simple way to enter data into the database, or present the results of a query.

They can selectively display fields in which the database user can enter data.

Reports:

Reports, as the name implies, are used to create nicely formatted summaries of the data, including graphs.

See examples:altVideo