What are the differences between primary key and unique key?


No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Oracle General Interview Questions

what is analyze command ? what kind of statistics does it generate?

2 Answers  


How to convert a string to a date in oracle database?

0 Answers  


What is recycle bin in Oracle?

0 Answers   MCN Solutions,


Write a simple Store procedure and pass parameter to it ?

3 Answers   Keane India Ltd,


what is the difference between no rows returned and null returned?

2 Answers  






Define the terms primary key foreign key and also the difference between primary and the unique key

2 Answers  


How many file formats are supported to export data?

0 Answers  


What is an oracle user role?

0 Answers  


Explain the use of file option in exp command.

0 Answers  


what are the disadvantages of hierarchial database over RDBMS?

1 Answers   TCS,


I have table-A(1,2,3)& table-B(3,4,5).what is the different b/w below questions? A union all B? B union all A?

2 Answers   Zensar,


why you need store procedure ? where do we use it in a Java project? can you get the code for as store procedure using in Java?

1 Answers   Goldman Sachs,


Categories
  • Oracle General Interview Questions Oracle General (1789)
  • Oracle DBA (Database Administration) Interview Questions Oracle DBA (Database Administration) (261)
  • Oracle Call Interface (OCI) Interview Questions Oracle Call Interface (OCI) (10)
  • Oracle Architecture Interview Questions Oracle Architecture (90)
  • Oracle Security Interview Questions Oracle Security (38)
  • Oracle Forms Reports Interview Questions Oracle Forms Reports (510)
  • Oracle Data Integrator (ODI) Interview Questions Oracle Data Integrator (ODI) (120)
  • Oracle ETL Interview Questions Oracle ETL (15)
  • Oracle RAC Interview Questions Oracle RAC (93)
  • Oracle D2K Interview Questions Oracle D2K (72)
  • Oracle AllOther Interview Questions Oracle AllOther (241)