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Update if exists else insert

Author

Topic

anishmca2008
Starting Member

2 Posts

Posted - 2009-08-31 : 02:29:32

I have a table named 'tblgrademaster' in sqlserver2000.
I have five fields in it .
they are given below.
@gradeid bigint,
@exam bigint,
@limit1 float,
@limit2 float,
@grade varchar(50)

Now I wrote stored procedure to insert thisinto table.

ALTER PROCEDURE [dbo].[insertgrademaster]
(
@gradeid bigint,(primary Key)
@exam bigint,
@limit1 float,
@limit2 float,
@grade varchar(50)
)
AS
insert into tblgrademaster values
(
@gradeid,
@exam,
@limit1,
@limit2,
@grade
)
The insert operation is success.
NOw i want a query like...
If fields @gradeid,@exam,@limit1,@limit2,@grade exists in a row(in my table),it should update the row,if not exists it should insert.
How will be the query(stored procedure)
Plz help me by modifying my query
thanks

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2009-08-31 : 02:42:02

[code]
if exists(select * from table where grade=@gradeid and exam=@exam and ........)
update table........
else
insert into .......
[/code]

Madhivanan

Failing to plan is Planning to fail

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2009-09-02 : 06:43:25

or:-


ALTER PROCEDURE [dbo].[insertgrademaster]
(
@gradeid bigint,(primary Key)
@exam bigint,
@limit1 float,
@limit2 float,
@grade varchar(50)
)
AS

update tblgrademaster
set exam=@exam,
limit1=@limit1,
limit2=@limit2,
grade=@grade
where gradeid=@gradeid

IF @@ROWCOUNT=0
BEGIN
insert into tblgrademaster values 
(
@gradeid,
@exam,
@limit1,
@limit2,
@grade
)
END
GO

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