what is the difference between primary key and foreign key?

Answer Posted / shiva

the primary key is used identified the unique value
presented in the table but foriegn key is used to refer the
value of the table that have unique vale,multiple foriegn
key present in multiple tables

Is This Answer Correct ?    6 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

can you provide me uniken pvt ltd. technical interview question and answer?

2609


Always declare destructors to be virtual"?????? why this is so needed?????

1510


What is spooling and buffering?

1278


What is the dewpoint of atmoshperic Air?

1673


Prepare the UGC CSIR net question papers those are enough. The question paper will be of 50 questions in size each 3 marks and with a negative of -1 for each wrong answer

2503






how configur net and vpn on cisco product

1532


how to use two diffirent gatway in one system

1405


What is the difference between a .PST file and a .OST file?

3425


iam from engineering information technology ... can i write group 1 exams??

1675


If i update, insert or delete records in my view will it affect my base table?????

1322


what is need of interface. what is the diff b/w interface and abstract class

1374


Has anyone attended any interviews in IITs for the positions like Research Associates/Fellowships?

1413


who is your role modal give in few sentances

1753


which topics are come from quizs

1211


what do you mean by CPU register?

1637