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Query on stored procedure

 
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nkothako

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Joined: 26 Nov 2008
Posts: 125
Location: chennai

PostPosted: Tue May 19, 2009 8:27 am    Post subject: Query on stored procedure
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1) Currently in my cobol+Db2 pgms, we are using simple sql statments, in this case coding stored procedures are suggestable are not.

Code:
ex : EXEC SQL                               
         SELECT  DISTINCT CURRENT TIMESTAMP 
              INTO :WS-CURR-TIMESTAMP           
              FROM  WW_INDUSTRY                 
     END-EXEC.                             

    EXEC SQL                                   
          UPDATE  WW_COMMIT_DATA                   
                        SET  DESCRIPTION_TX = :DESCRIPTION-TX
                        WHERE  APPLICATION_ID = :APPLICATION-ID
                AND  PARAMETER_ID   = :PARAMETER-ID   
    END-EXEC.   


for the above statements coding a stored procedure are suggestable

2) Can we replace with a stored procedure instead of a cursor in cobol+DB2 pgm. which is most efficient to use. in this
kindly let me know how to receive more than one result from SP to calling cobol pgm.
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dbzTHEdinosauer

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Joined: 20 Oct 2006
Posts: 6970
Location: porcelain throne

PostPosted: Tue May 19, 2009 2:38 pm    Post subject:
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1.
Code:
EXEC SQL                               
         SELECT  DISTINCT CURRENT TIMESTAMP
              INTO :WS-CURR-TIMESTAMP           
              FROM  WW_INDUSTRY                 
     END-EXEC.           


the above makes no sense. there is only one CURRENT_TIMESTAMP during an SQL call. CURRENT_TIMESTAMP belongs to DB2, not in any of your tables.

2. Here are some links to Redbooks for Stored Procedures:
DB2 Vsn9 for z/OS Stored Procedures: thru the CALL and Beyond
DB2 for z/OS Stored Procedures: thru the CALL and Beyond
Any Application Programmers Guide, Appendix A, show format for calling stored procedure from cobol module.
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