How to create the Group of cache for many to many relationship tables?

Hi, Chris,.
Page 4-4 < < the user manual of the Oracle Database Cache in memory > > there is a saying,
A child table cannot reference multiple parent tables.
If there is a many-to-many relationship table in Oracle and I want to cache in TT, there is not a la carte approach that?
Or I have to logically break his references to the two tables in one of them?
I forgot to mention that I have a root table and one of its child tables is a many-to-many relationship table.

Yes, that's correct. You can not exactly this model in TimesTen. You to omit some of the relationships so that things are defined in TimesTen as a pure parent/child relationship. You can also consider putting the tables into groups separate cache. Of course, there are consequences to this:

1. the 'missing' relationship cannot be run by TimesTen. The application must respect/run it. If this is not some updates may not to be propagated to Oracle if they violate the relationship in Oracle.

2 If the parallel AWT is configured (to improve the performance of spread) it will not be used for all tables where they lack of relationships. All updates to the tables in the order will apply.

Chris

Tags: Database

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