Conclusions
Messaging and database technology have evolved independently. There have been early attempt to use databases to store messages without adapting the database technology to the messaging environments [NEON]. These attempts resulted in severe performance and functional limitations.
Oracle’s approach finally brought the breakthrough. The approach presented in this paper achieved the following benefits
• Significantly extended the information sharing functionality
• Significantly improved the operational characteristics
• Significantly reduced TCO (Total Cost of Ownership) for users
• Significantly reduced development time and effort for Oracle
The Oracle effort confirmed the perception of many researchers that messaging and database technology should be integrated [BHM], [GR]. It also adds a new perspective to the work related to active databases as described in Active Database Systems.