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Help Debugging an Update Statement with an Inner Join

Help Debugging an Update Statement with an Inner Join

Help Debugging an Update Statement with an Inner Join

Hi everyone ...

I'm hoping you guys can offer some guidance.

My update query doesn't seem to work.  I'm using QMF to interact with DB2 v9 on z/OS.  I typically stick to select statements so I'm a bit out of my element.  Here is what I've got:


    UPDATE TABLE1   A           
INNER JOIN TABLE2   B           
        ON A.1_PROC_NUM  = B.2_PROC_NUM
       AND A.BUS_ID      = B.BUS_ID      
       SET A.1_PROC_NUM  = B.2_PROC_NUM,
           A.1_CTRY_CD   = B.1_CTRY_CD,
           A.1_CTRY_NM   = B.1_CTRY_NM,
           A.1_REGN_CD   = B.1_REGN_CD,
           A.1_REGN_NM   = B.1_REGN_NM;

The error message I get is DSQ17199, which seems to be generic and rather unhelpful.  I think it has to do with the inner join.

Anyone have any ideas?

Many thanks in advance ...


RE: Help Debugging an Update Statement with an Inner Join

db2 is a pain on its updates.



    UPDATE TABLE1   A           
       SET (
           ) = (
                select B.2_PROC_NUM
                FROM TABLE2 B
               WHERE A.1_PROC_NUM  = B.2_PROC_NUM
                 AND A.BUS_ID      = B.BUS_ID
              SELECT 1
                FROM TABLE2 B
               WHERE A.1_PROC_NUM  = B.2_PROC_NUM
                 AND A.BUS_ID      = B.BUS_ID



Frederico Fonseca
SysSoft Integrated Ltd

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