ORA – 00001

ORA – 00001

Unique Constraint violated.

Cause:     When u are trying to insert a value into a row, duplicates wont be allow.

Either don’t enter duplicates or follow below process

1. Drop the Unique key constraint
2. Change the constraint to allow duplicates
3. Modify your Sql statement (So that a duplicate value is not created)

NOTE: Mostly, we get these alert while doing the import.