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Vinz867
Fluorite | Level 6

I have a merge logic and I am trying to understand what kind of join it is doing. Thank you the help!

 

merge DATA_A(in=a) DATA_B(in=b) data_C(in=c);
by id_loan_syst_gend;
if a and not c;

1 ACCEPTED SOLUTION

Accepted Solutions
SASKiwi
PROC Star

This is a match-merge of three datasets by the key variable id_loan_syst_gend. Only rows from DATA_A where there is not a match in DATA_C are kept. Have a look at the examples in the link I provided to understand a match-merge.

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3 REPLIES 3
SASKiwi
PROC Star

This is a match-merge of three datasets by the key variable id_loan_syst_gend. Only rows from DATA_A where there is not a match in DATA_C are kept. Have a look at the examples in the link I provided to understand a match-merge.

Vinz867
Fluorite | Level 6

I see. If I am re-writing this through query builder, what type of join will A and B be? 

SASKiwi
PROC Star

The nearest equivalent in SQL is a LEFT JOIN.

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