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Using Object IDs (OIDs) in Oracle 8

Oracle Tips by Mike Ault

Creation of a REF Request and REF Passing Method Set

In the first part of this paper we discussed that to properly implement an object oriented type set where a dependent table object uses a REF to refer to a master table object two methods should be created. The first method, which for convenience I will call the “get_ref” method, and a second, which I will call the “give_ref” method will be created. The first will reside in the dependent table object type specification and the second will reside in the master table object type specification. As its name implies the whole purpose of the first method is to request the value of a specific REF from the master table. The whole purpose of the second method is to receive the request for the REF, get the requested REF from the master table object and return the REF to the calling method. For this example we have two object tables, EMPLOYEES and JOB_SITES that are related as is shown in Figure 1.

SEE CODE DEPOT FOR FULL SCRIPTS


For more information on this topic, I recommend Don Burleson's latest book "Oracle Tuning: The Definitive Reference". 

You can buy it direct from the publisher for 50%-off and get instant access to the code depot of Oracle tuning scripts:

http://www.rampant-books.com/book_1002_oracle_tuning_definitive_reference_2nd_ed.htm


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