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6.6

IBM DB2 Left Outer Join query, it does not work...

Asked by chris_rutherford in DB2 Database

Tags: db2, join, outer, left

Hello,

I've two tables, one called westpac_data and the other called pol_policy.  The linking field between those two tables is cardnbr on the westpac_data table and plc_bill_acctnum on the pol_policy table.  I want all the records from westpac_data and whatever matches on the pol_policy table.  When I run the following query it acts like an equal join, it only gives me data from both tables where those two fields match.

There are 38442 records on westpac_data and 406000 records on pol_policy, the query below only returns 22622 records, i.e. only the matching records.  Does anyone know why this does not work???

select count(*)
from admin.westpac_data wp left outer join admin.pol_policy s6 on wp.cardnbr = s6.plc_bill_acctnum

I don't think this question is difficult, I'm just not doing something right.

Cheers,

Chris
[+][-]05/15/03 08:09 AM, ID: 8533821Accepted Solution

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About this solution

Zone: DB2 Database
Tags: db2, join, outer, left
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Solution Provided By: BigSchmuh
Participating Experts: 6
Solution Grade: B
 
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