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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

The Basic Loop

The main algorithm of the function is a loop that fetches records from the REF cursor as shown in this pseudo-code.

    BEGIN

      -- for every order...
      LOOP

        FETCH p_curs INTO v_order;
        EXIT WHEN p_curs%NOTFOUND;

        IF it's a repeat order then
          PIPE ROW(  );
        END IF;

      END LOOP;  -- every order

      RETURN;

    END;

It’s very straightforward. Just fetch records from the passed-in cursor and evaluate them against repeat-order criteria. If a match is found, then pipe a record upstream. Now I’ll add in the loading of the regions’ repeat-order criteria.

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Publisher Resources

ISBN: 0596005873Supplemental ContentErrata Page