More OQL

5/5/98


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Table of Contents

More OQL

Extraction of Collection Elements

Example

Extraction of Collection Elements (II)

Example

Example (II)

Aggregation

Example

Grouping

Grouping (II)

Outline of OQL Group-By

Example

Example (II)

Example (II)

Example (III)

Example (IV)

Example (V)

Another, Less Typical Example

The Query

The Query (II)

2. Intermediate collection

2. Intermediate collection (II)

2. Intermediate collection (III)

3. Output collection:

Author: Gary L. Burt

Email: burt@umbc

Home Page: www.cs.umbc.edu/~burt