Learn the motive and how to resolve the ORA-00001 error message in Oracle.
When you come across an ORA-00001 error, the following error message will appear:
ORA-00001: special constraint (constraint_name) violated
You tried to execute an INSERT or UPDATE statement that has created a reproduction value in a subject restrained via a unique index.
The option(s) to resolve this Oracle error are:
Drop the unique constraint.
Change the constraint to allow duplicate values.
Modify your SQL so that a duplicate fee is not created.
If you are now not sure which unique constraint was violated, you can run the following SQL:
SELECT DISTINCT table_name FROM all_indexes WHERE index_name = 'CONSTRAINT_NAME';
In our instance (see picture above), our constraint identify would be SYS_C002459 and we would execute the following SQL:
SELECT DISTINCT table_name FROM all_indexes WHERE index_name = 'SYS_C002459';
This would return the name of the desk whose special constraint we violated.