Important Oracle Interview Questions with Answers

Here is a list of 60 interview questions about Oracle Database with their answers. The list contains questions useful for basic, freshers and experienced oracle professionals. Download Complete Oracle Interview Questions PDF. Each question contains their answer also. Its a good practice to go through all of these questions before attending the interview.

  • Expect this as the first question, if you are a fresher. Prepare answer for an introduction about Oracle
    2_What is Oracle table
  • Question about Clusters
    3_What are Clusters
  • Index in database. This is an important section that you should prepare well.
    4_What is an Index
  • What is called as Views in RDBMS. What are the uses
    5_What are the advantages of views
  • Tell about various types of queries that you know
    6_What are the various types of queries
  • Clusterd and non-clusterd index
    7_What is the difference between clustered and a non-clustered index
  • Introduction about Table Space
    8_What is a Tablespace
  • 9_Why use materialized view instead of a table
  • 10_What does ROLLBACK do
  • 11_Compare and contrast TRUNCATE and DELETE for a table
  • 12_what is null value
  • 13_Define transaction
  • 14_what is the difference between sql&oracle
  • 15_What are different Oracle database objects
  • 16_What is hash cluster
  • 17_What is a User_exit
  • 18_What is schema
  • 19_What are Roles
  • 20_What are the dictionary tables used to monitor a database spaces
  • 21_What is a SNAPSHOT
  • 22_What is a database instance
  • 23_What are parameters
  • 24_What are the different file extensions that are created by oracle reports
  • 25_What are clusters