What is a record in pl/sql?
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What are two virtual tables available during database trigger execution ?
Why is a primary key important?
What is the importance of sqlcode and sqlerrm?
What are string functions in sql?
how will you find out the last three records in a table with n no of records and delete them
How to fetch values from testtable1 that are not in testtable2 without using not keyword?
Can we create index on primary key?
What is cte?
Explain foreign key in sql?
What is nvl?
how view used for security purposes?
What are three advantages to using sql?
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