In computing, Oracle Advanced Queuing (AQ) is a sort of message-oriented middleware developed by

Oracle Corporation Oracle Corporation is an American multinational computer technology corporation headquartered in Austin, Texas. In 2020, Oracle was the third-largest software company in the world by revenue and market capitalization. The company sells da ...

and integrated into its

Oracle database Oracle Database (commonly referred to as Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a multi-model database management system produced and marketed by Oracle Corporation. It is a database commonly used for running online t ...

. AQ uses database structures as a repository for

asynchronous Asynchrony is the state of not being in synchronization. Asynchrony or asynchronous may refer to: Electronics and computing * Asynchrony (computer programming), the occurrence of events independent of the main program flow, and ways to deal with ...

queuing as an element in various Oracle-oriented and heterogeneous operations. Oracle features utilising Advanced Queuing include: * Oracle Data Guard * Oracle Streams In Oracle Data Guard primary databases the queue monitor process (often running as ''qmn0'') interacts with AQ. As of Oracle release 9.2, AQ comes bundled with Standard Edition and Enterprise Edition at no extra cost. As of Oracle release 10.1, AQ is integrated into Oracle Streams, and is called "Oracle Streams AQ". As of Oracle release 12.1, Oracle Streams is deprecated and AQ is again named just "Oracle AQ". Oracle AQ is used as the internal Java Message Service provider in the Oracle Enterprise Service Bus. In addition to asynchronous message exchanges (point-to-point and publish–subscribe), Oracle AQ can also perform message transformation via SQL functions. Oracle AQ is available in all editions of Oracle database, including XE.

References

External links

Oracle 11g Streams Advanced Queuing User's Guide (11.2)

* * ttp://www.stanford.edu/dept/itss/docs/oracle/9i/appdev.920/a96587/toc.htm Oracle9i Advanced Queuing manual
Oracle Database 10g Product Family
Message-oriented middleware Oracle software {{database-software-stub