In this post, you’ll learn about the DB2 error 1062-Invalid argument value: Duplicate entry ‘1’ for key 1 and the reason why you are receiving the error message and how to fix it
How does this Error Message Looks like
1062 – Invalid argument value: Duplicate entry ‘1’ for key 1
Reason for the Error & Solution
Duplicate values have been inserted into a column that has a UNIQUE constraint. It is the responsibility of the application to deal with prevention of insertion of duplicate values.