Hi,
Sometimes you can get ” ORA-00001: unique constraint (string.string) violated ” error.
Details of error are as follows.
ORA-00001: unique constraint (string.string) violated Cause: An UPDATE or INSERT statement attempted to insert a duplicate key. For Trusted Oracle configured in DBMS MAC mode, you may see this message if a duplicate entry exists at a different level. Action: Either remove the unique restriction or do not insert the key.
This is a unique constraint error. This error is received when you try to insert an existing record into table again.
To solve this problem either remove the unique constraint or don’t insert the duplicate record.
Do you want to learn Oracle Database for Beginners, then read the following articles.
https://ittutorial.org/oracle-database-19c-tutorials-for-beginners/