Pfizer interview question
What is inner, left and outer join?
Interview Answers
Anonymous
12 Feb 2021
use a venn diagram. inner join is the intersection. left join should include all records with key on the left table. same goes for right join
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What is inner, left and outer join?
Anonymous
use a venn diagram. inner join is the intersection. left join should include all records with key on the left table. same goes for right join
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