What are the types of optimization?
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select 1,col1,col2 from table1. output?
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What is clustered index sql?
What is faster join or subquery?
What's the difference between inner join and left join?
What is rename in sql?
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Differentiate between sga and pga.
I need a exceptoin in pl/sql block so that if any errors occur in the block then no exception should errors should raise?
What are the two types of periodical indexes?
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