sql - joining more tables makes me get less data from the query -

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i have 1 problem 1 sp, when joining specific tables, getting less data sp getting when not included in sp. not getting data them yet, joining them , makes sp send me less data. idea problem can be? thanks

it sounds there no matching rows in tables you're joining to.

if change join left outer join, should rows expecting (but, obviously, check output make sure do!)


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