What is group by in sql?
what is unique key constraint? : Sql dba
What is sql in oracle?
Why is theta join required?
How does rowid help in running a query faster?
What is sql prepared statement?
consider a table which contain 4 columns,ename,eno,sal and deptno, from this table i want to know ename who having maximum salary in deptno 10 and 20.
How to find 3rd highest salary of an employee from the employee table in sql?
Is sql an operating system?
what is sql.
What does count (*) mean?
Explain the methods used to protect source code of pl/sql.
How can we debug in PL/SQL?