OQL

Table of Contents

OQL

OQL -- Motivation

OQL -- Motivation (II)

OQL Types

OQL Uses ODL as its Schema-Definition Portion

Example

Example (II)

Example (III)

Path Expressions

Examples

Example of Illegal Use of Dot

OQL Select-From-Where

OQL Select-From-Where (II)

Example

Example

Tailoring the Type of the Result

Rename Fields

Change the Collection Type

Example

Example

Subqueries

Example: Subquery in FROM

Quantifiers

Example

Example

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