Etl Engineer Interview Questions

780 etl engineer interview questions shared by candidates

what is left join then said reverse this and what join it will be ? What are cursors? What is Rownum ? You have two tables , A and B ? A has two attributes , one is PK and other is FK and Table B also has two attributes, One is PK and other is FK. Now how to Insert the row. You have two parameters . one has value pen and other has value as pencil. Now how you swap the values without using Update stmt.
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ETL Developer

Interviewed at Walgreens

3
Aug 29, 2016

what is left join then said reverse this and what join it will be ? What are cursors? What is Rownum ? You have two tables , A and B ? A has two attributes , one is PK and other is FK and Table B also has two attributes, One is PK and other is FK. Now how to Insert the row. You have two parameters . one has value pen and other has value as pencil. Now how you swap the values without using Update stmt.

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