how to create foreign key

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how to create foreign key
i have created two tables organisation and manager both are having ID coloumn how to proceed in SQL studio 2005

Posted 7-Jan-13 22:23pm

Dhritirao's

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4 solutions

Solution 3

http://stackoverflow.com/questions/6340343/how-can-we-make-foreign-key-among-tables-after-inserting-data-in-those-tables[^]

SQL

ALTER TABLE ORDERS
ADD FOREIGN KEY (customer_sid) REFERENCES CUSTOMER(SID);

Posted 7-Jan-13 22:29pm

puskar gupta

Updated 7-Jan-13 22:30pm

v2

Solution 1

Quote:
Visit this link How to Create Primary and Foreign key[^]

Posted 7-Jan-13 22:26pm

Yugal Pandya

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Manas Bhardwaj · Accepted Answer · 2013-01-07T22:27:00

Solution 2

Something like this:

SQL

ALTER TABLE Managers
ADD FOREIGN KEY (Id)
REFERENCES Organization(Id)

Look for more details here:

http://www.w3schools.com/sql/sql_foreignkey.asp[^]

http://msdn.microsoft.com/en-us/library/ms175464(v=sql.105).aspx[^]

Posted 7-Jan-13 22:27pm

Manas Bhardwaj

Prasad_Kulkarni · Accepted Answer · 2013-01-07T22:44:00

Solution 4

Refer: http://msdn.microsoft.com/en-us/library/ms189049.aspx[^]
e.g:

SQL

CREATE TABLE Orders
(
O_Id int NOT NULL PRIMARY KEY,
OrderNo int NOT NULL,
P_Id int FOREIGN KEY REFERENCES Persons(P_Id)
)

Key Point:
The "P_Id" column in the "Persons" table is the PRIMARY KEY in the "Persons" table.
The "P_Id" column in the "Orders" table is a FOREIGN KEY in the "Orders" table.

Posted 7-Jan-13 22:44pm

Prasad_Kulkarni

Comments

Manas Bhardwaj 8-Jan-13 5:59am

Correct +5. And congratulations for your MVP status :)