Un-Answered Questions { Databases AllOther }

What are indexes in oracle?

624


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

627


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

596


Write a query to retrieve for many to many relationships?

565


How to produce such kind of file?

617


What is a trace file?

630


What is the purpose of TNS?

654


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

584


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

919


Can you tell any two advantages of stored procedures?

586


List various types of log-based recovery in DBMS.

566


What do you mean by foreign key and primary key?

621


What are the types of joins?

625


Display the employees whose salary is less than average salary.

629


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.

1372