Why do we use subquery?
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Does truncate require commit?
Define concurrency control. : Transact sql
a. Can you delete data from a View. b. If Yes, can you delete it if there are multiple tables c. If No, can you delete if there is single source table which is joining.
Difference between a query and strored procedure?
What is full join in sql?
How do you optimize SQL queries ?
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What are the advantages of pl sql over sql?
What is magic table?
what is Hash join?how it is different from inner join?what is the sign used for inner join?(eg: like the (+) sign used for outer join)?
what command is used to create a table by copying the structure of another table including constraints ?
Is it possible to link two groups inside a cross products after the cross products group has been created?
How sql query is executed?
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