My Oracle Support Banner

Advanced Queue (AQ) - functionality of lazy deletion in 11gR2 (Doc ID 1527760.1)

Last updated on AUGUST 30, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.

Goal

Created a multi consumer queue table. when Dequeue from the queue table, the change is not noticed in AQ$<queue_table> view until 30 seconds duration.

Example:
- Enqueue Message in queue table.
- Select count from AQ$<queue_table>;                               --        result = 1
- Dequeue message from queue_table
- Select count from AQ$<queue_table>                                --        result = 1
- wait 30 seconds ......
- Select count from AQ$<queue_table>;                               --        result = 0

 

 

Solution

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Goal
Solution


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.