Un-Answered Questions { Databases AllOther }

What are indexes in oracle?

635


What is the relationship that exists inside in E-R diagram?

637


Write a query to get maximum and second maximum in oracle?

606


Write a query to retrieve for many to many relationships?

578


How to produce such kind of file?

638


What is a trace file?

640


What is the purpose of TNS?

665


Given a table Employee which has columns name and salary, write an SQL query to find the employee with the second highest salary.

594


Given a table of Player which contains Sno and player name, write a query which finds all possible Table Tennis doubles pairings.

928


Can you tell any two advantages of stored procedures?

598


List various types of log-based recovery in DBMS.

576


What do you mean by foreign key and primary key?

629


What are the types of joins?

635


Display the employees whose salary is less than average salary.

648


Two tables emp(empid,name,deptid,sal) and dept(deptid,deptname) are there.write a query which displays empname,corresponding deptname also display those employee names who donot belong to any dept.

1390