Un-Answered Questions { Databases AllOther }

What are indexes in oracle?

631


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

633


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

600


Write a query to retrieve for many to many relationships?

571


How to produce such kind of file?

625


What is a trace file?

634


What is the purpose of TNS?

658


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

588


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

921


Can you tell any two advantages of stored procedures?

594


List various types of log-based recovery in DBMS.

571


What do you mean by foreign key and primary key?

623


What are the types of joins?

631


Display the employees whose salary is less than average salary.

639


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.

1376