how to improve my ways of handling errors than avoiding it?

[MSIE]

Let say i insert a record in my database

New Record

CustomerID 1111 --> Inserted Successfully

Next record

CustomerID 2222 --> Duplicated CustomerID --> Should show duplicated.

Right now i am using

IF EXISTS (SELECT ....)
BEGIN

INSERT
(...)
END

BEGIN
UPDATE(....)
END

Any ways to check for duplicated instead of updating it? Any examples?

[kareninstructor]

Let say i insert a record in my database

New Record

CustomerID 1111 --> Inserted Successfully

Next record

CustomerID 2222 --> Duplicated CustomerID --> Should show duplicated.

Right now i am using



Any ways to check for duplicated instead of updating it? Any examples?

With what you have shown it appears that CustomerID is not a primary auto incrementing field so the best method to ensure you are not inserting an exact match is to use a SELECT WHERE statement to the table to see if the CustomerID currently exists or not and from there continue with logic based on the results from the query i.e. show the current record for editing perhaps, indicate this would have been a duplicate etc.

[Hack]

Moved To Database Development