Cardinality left outer join CDS Part 8 ABAP on HANA Course
Автор: SAP TECHNOMANIAC
Загружено: 2022-07-05
Просмотров: 23407
Left outer join to many or Left outer joins works:-
Relationship 1:N :- it will create a join even if we don't fetch data from the RHS table
Relationship N:1 l:- it will not create a join if we don't fetch data from the RHS table
1:N and N:1 is the relationship between the LHS table and the RHS table
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Relationship 1:N behaves differently for "Left outer to one join" :-
Select no contain any fields from RHS then optimization takes place join will not form
Aggregate functions like count(*) is used then optimization takes place join will not form
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Code:-
https://saptechnomaniac.blogspot.com/...
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