what is the difference between primary key and foreign key?

Question Posted / preethi

3 Answers
5872 Views
TCS, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what is the difference between primary key and foreign key?..

Answer / 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

what is the difference between primary key and foreign key?..

Answer / preethi

a table must have single unique primary key but mutiple
foriegn key to refer different tables.

Is This Answer Correct ?

7 Yes

3 No

what is the difference between primary key and foreign key?..

Answer / aaa

combination of columns is called primary key and columns in
one table whose primary key matches with other table is
foreign key

Is This Answer Correct ?

0 Yes

5 No

Post New Answer

More Engineering AllOther Interview Questions

what is the difference between C and C++? what is the difference between scanf and gets? what is mean by extern what is the use of it? what will happen if i say delete this> Difference between C structure and C++ structure? What is the difference between overloading and overridding? Explain the need for "virtual Destructor" Can we have "virtual Constructors"? What is the different types of polymorphism> What is virtual functions? How to implement virtual function in "C"? What are the different types of storage classes?

0 Answers

Difference in NS and TIA type HRC fuses

0 Answers

What are the major network infrastructures for installing Exchange 2003?

0 Answers Wipro,

PLZ SOMEONE TELL ME WHICH TYPE OF QUESTIONS IS ASKED IN HLL(Hindustan latex ltd.)mangmt trainee entrance exam?

0 Answers

There are prime factors of two numbers a and b , write a program using this prime factors whether a is divisible by b?

0 Answers

What are the benefits of using interface accept multiple inheritance concept?

2 Answers IBM,

What is sanity testing..please explain with examples