DBMS GATE Questions 2020

In this article you will get DBMS GATE Questions 2020 with answers. 1. Consider a relational database containing the following schema. The primary key of each table is indicated by underlying the constituent fields. SELECT s.sno, s.snameFROM Suppliers s, Catalogue cWHERE s.sno = c.sno ANDCost > (SELECT AVG (cost)FROM CatalogueWHERE pno = ‘P4’GROUP BY pno); The … Read more

What is Deadlock in DBMS and OS

A deadlock in DBMS and OS is a condition wherein two or more processes or transactions are waiting for each other in order to be finished but none of the processes or transactions are willing to give up the resources that the other processes need. In this situation, no processes ever get finished and are in the … Read more

What are the different Oracle versions?

oracleversions

Introduction: Oracle is a  Relational Database Management System (RDBMS) available in various versions. In this article I am going to tell you various Oracle versions and features. Oracle RDBMS is providing all the features to perform online transaction processing and data where housing. Every new oracle version comes with new features. Any software is not … Read more

Main Advantages of the Database management system

advantages of dbms

Advantages of the Database management system Main Advantages of the Database management system: – A database management system (DBMS) is defined as a software system, which allows the user to access, create, maintain, and control the database. The DBMS makes it possible for the user to create, read, update, and delete data in the database. … Read more