What is a constraint? Tell me about its various levels.
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What are pl sql procedures?
What is equi join in sql?
write a procedure to print a statement or number not using "dbms_output.put_line" package.write a procedure instead of it using procdure name as "print" ex:- declare a number:=2; begin print(a); end; /* when U type above procedure 2 have to should be printed*/
Why do we need pl sql?
Explain locks? : Transact sql
what is Difference between Having and Where clause?
Is pl sql and postgresql same?
Explain cursor types?
How do I create a sql script?
Explain the difference between triggers and constraints?
Explain two virtual tables available at the time of database trigger execution.
Can you have more than one trigger on a table?