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Oracle PL/SQL for DBAs
book

Oracle PL/SQL for DBAs

by Arup Nanda, Steven Feuerstein
October 2005
Intermediate to advanced content levelIntermediate to advanced
454 pages
14h 44m
English
O'Reilly Media, Inc.
Content preview from Oracle PL/SQL for DBAs

REF Cursors and Nesting

Because table functions return collections, there is no easy way to declare strongly typed REF cursors to handle them when nesting. Thus, I have to declare records with the same structure as the collection and then tie a REF cursor to them like this.

    CREATE OR REPLACE PACKAGE cursors
      TYPE v_number_rec IS RECORD ( number_col NUMBER );
     TYPE number_curs IS REF CURSOR RETURN v_number_rec;
    END;

Now the strongly typed REF cursor can be used in table functions ready for nesting.

    CREATE OR REPLACE FUNCTION nested_number ( p_curs cursors.number_curs )...
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Publisher Resources

ISBN: 0596005873Supplemental ContentErrata Page