Primary Key and Foreign Key in Sql

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SQL-Server-2005

SQL-Server

Hi,
How to use Primary Key and Foreign Key in SQl?.Give Solution with Example???

Regards
Balamurugasn

Posted 30-Oct-12 21:40pm

bala1989

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OriginalGriff · Answer 1 · 2012-10-30T21:53:00

Google is your friend: Be nice and visit him often. He can answer questions a lot more quickly than posting them here...

A very quick search using your question as the search term gave over 1.5 million hits: Google : How to use Primary Key and Foreign Key in SQl[^]
The first hit is W3Schools: http://www.w3schools.com/sql/sql_foreignkey.asp[^] with a good explanation and example.

In future, please try to do at least basic research yourself, and not waste your time or ours.

kankeyan · Answer 2 · 2012-10-30T21:58:00

Assume there are two tables

Create table empmaster
(
empid Int identity(1,1) primary key,
Empname varchar (20),
Empaddress varchar(50),
EMpDoB datetime
)

create table empjob
(
jobid int not null,
empid int not null,
jobdesc varchar(40),
FOREIGN KEY (empid) REFERENCES empmaster(empid)
)

here we are refering the primary key and foreign key relationship to get the detail records for particular employee with jobdesc.
Hope its help you.

Primary Key and Foreign Key in Sql

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