how to insert in sqlserver table if composite primary key present

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SQL-Server-2008

sir
i want to insert into a table through storeprocedure if a composite primary key is present having 3 attribute,if i have insert 3 same int type no into table it is raising a error,how to handle the error pls help me

Posted 17-Aug-13 2:27am

amritbdk

Updated 26-Aug-17 4:45am

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Bernhard Hiller · Answer 1 · 2013-08-18T22:09:00

A primary key must always be unique. That holds also true for composite primary keys.
When your primary key consists of three int a,b,c then you must not insert two rows with the same values of a,b,c.
Now check your requirements: what is expected to happen when such a combination recurs? An error? Then just change the mesage to become more intellegible to the user. An update? Then check for the presence of the combination, and if it is already present, do an update query instead of an insert query.

Member 13379370 · Answer 2 · 2017-08-26T04:45:00

Solution 2

If you have composite key and want to insert values into it.
Then try below code

insert ignore into HotelBooking(RoomID, RegisterDate , CustomerName , Gender , Address , BillAmount ) values ('R1002', '12/12/2018','Adam Ponting','Male', 'Sydney Australia' , '1132.11')
ON DUPLICATE KEY UPDATE RoomID =values(RoomID), RegisterDate =values(RegisterDate );

Posted 26-Aug-17 4:45am

Member 13379370

Comments

Dave Kreskowiak 26-Aug-17 10:59am

Asked and answered FOUR YEARS AGO.