Defining an Index

Select C - Index Maintenance.

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We need to build some indexes to use with the "vidcust" file. Indexes will allow us to rapidly find any record in our "vidcust" file based on sort definition.

Choose "vidcust".

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We will be using Automatic Indexes in the Video Store application. This means that they "automatically" update themselves every time you add, delete or modify a record. If an automatic index is changed by one of these actions, it will rebuild itself accordingly. (The opposite of this, Demand Indexes, will be discussed later.)

Select 1 - Automatic Index.

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Choose A.

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The following screen will appear:

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Enter the following fields and comment for this index:

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Press ESC to record. Return to the main menu.