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I was trying to create a count of items in INVENTORY_HEADER not referenced by PREFERENCE_DETAIL. I used Crystal Report Writer to generate a starting point.
But, it looks odd. I don't understand the oj in the FROM clause. Or, for that matter, why INNER JOINN was used to connect INVENTORY_HEADER and PREFERENCE DETAIL. As presented below, I do not see items that are unreferenced. If I change INNER JOIN to OUTER JOIN, I definitely get the wrong results.
Is this just how Microsoft SQL works, or is there some way to fix this?
John McKee
SELECT
MAX(INVENTORY_HEADER."SYSTEM_ID"),
MAX(INVENTORY_HEADER."INVENTORY_ID"),
MAX(PREFERENCE_DETAIL."RESOURCE_ID"),
count(preference_detail."RESOURCE_ID")
FROM
{ oj "ORSOSTEST"."ORSOSTEST"."INVENTORY_HEADER" INVENTORY_HEADER INNER JOIN "ORSOSTEST"."ORSOSTEST"."PREFERENCE_DETAIL" PREFERENCE_DETAIL ON
INVENTORY_HEADER."SYSTEM_ID" = PREFERENCE_DETAIL."RESOURCE_ID"}
GROUP BY PREFERENCE_DETAIL."RESOURCE_ID"
ORDER BY
count(preference_detail."RESOURCE_ID") ASC
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