How to add new employee details in an employee_details table with the following details
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Explain the types of joins in sql?
i have table T!. A B C D NULL 1 2 3 4 NULL 5 6 7 8 NULL 9 10 11 12 NULL. I WANT COUNT OF NULL VALUES IN TABLE. WRITE A QUERY.
Which is better join or subquery?
What is a dirty read sql?
Is it mandatory for the primary key to be given a value when a new record is inserted?
Why use stored procedures?
what is HASH join?
My select statement is not working as expected, So, to overcome from such issues what are the steps needed to be taken care?
Why self join is used in sql?
How can we make an if statement within a select statement?
Is left join faster than inner join?
How to Execute a Package in PL/SQL.?
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