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What is a complex join in OBIEE and why, where is it used?

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تم إضافة السؤال من قبل Osama Abu Quboh , Front End Engineer , Bayt.com
تاريخ النشر: 2013/06/12
Amer Al-Ashi
من قبل Amer Al-Ashi , OBIEE & Technical Apps Consultant , Versos

physical join is used in Physical layer and complex join is used in BMM layer , you are able to change the type of join from inner to outer joins.
This type of behavior is telling us that complex join is a logical join that OBIEE server looks at to determine the relationship between logical tables, in other words, it is just a placeholder.
Complex join will not be able to tell the server what physical columns are used in joining, but it will be able to tell the server what type of join this is going to be

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