Question

cursors in Db2

Asked by: jaggernat

hi guys

I have a store proc like this
>>>>>>>>>>>>>>>>>>>>>>
    CREATE PROCEDURE  RETRIEVE1600
   (
    IN I_DOC_FEE_CODE               CHAR(4),
    IN I_EFF_START_DATE             DATE,
    IN I_EFF_END_DATE               DATE,
      OUT  SP_STATUS                INTEGER)
            FENCED
        RESULT SET 1
          LANGUAGE SQL
    NOT DETERMINISTIC
    MODIFIES SQL DATA
         NO DBINFO
            COLLID RFSPONLN
    WLM ENVIRONMENT DB2DDFLT
           ASUTIME NO LIMIT
     STAY RESIDENT YES
      PROGRAM TYPE MAIN
          SECURITY DB2
  COMMIT ON RETURN NO
--
   P1: BEGIN
--
     DECLARE SQLSTATE    CHAR(5) DEFAULT '00000';
     DECLARE SQLCODE     INTEGER DEFAULT 0;
--
     DECLARE SEL_CSR CURSOR WITH RETURN FOR
--
     SELECT
          DOC_FEE_CODE
        , DOC_DESCRIPTION
      FROM RFT_DOC_FEE_CODE
     WHERE
            DOC_FEE_CODE       =  I_DOC_FEE_CODE
       
--
 
    FOR FETCH ONLY
    WITH UR
  ;
     DECLARE EXIT HANDLER FOR SQLEXCEPTION
             SET SP_STATUS = SQLCODE;
--
   OPEN SEL_CSR;
--
   SET SP_STATUS = SQLCODE;
--
   END P1

>>>>>>>>>>>>>>>>>>>>>>

I am assuming that cursors is being used in the above code( DECLARE SEL_CSR CURSOR WITH RETURN FOR) and ( OPEN SEL_CSR;).
 Can any one explain what cursor is and how it is being used in the above store proc.
Also, what is this statement doing?
    FOR FETCH ONLY
    WITH UR

any help gretly appreciated,
thanks
Jay

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Asked On
2007-06-16 at 10:29:50ID22638481
Tags

db2

,

cursors

Topic

DB2 Database

Participating Experts
3
Points
500
Comments
4

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Answers

 

Accepted Solution

by: LowfatspreadPosted on 2007-06-16 at 23:43:57ID: 19301675

Rank: Genius

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Assisted Solution

by: momi_sabagPosted on 2007-06-17 at 00:26:36ID: 19301721

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Author Comment

by: jaggernatPosted on 2007-06-17 at 08:38:53ID: 19302528

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Assisted Solution

by: KdoPosted on 2007-06-18 at 06:52:08ID: 19307008

Rank: Genius

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