Final answer:
The ORA-00980 error occurs when the synonym used in a query does not correspond to a valid database object, possibly due to the object being dropped, renamed, or lacking user permissions. It requires validation of the base object and updating the synonym as necessary.
Step-by-step explanation:
The ORA-00980 synonym translation is no longer valid error in Oracle databases occurs when a synonym used in a SQL query refers to an underlying object that either does not exist or cannot be accessed due to insufficient privileges or because the synonym itself does not exist. This is often encountered when an application tries to access a database object via a synonym after the object has been dropped or altered without updating the synonym.
To resolve this issue, you should check that the base object the synonym points to exists and that the user has the correct permissions to access the object. If the base object has been dropped or renamed, the synonym should be recreated or altered to point to the correct object. Regular database maintenance and synchronization of synonyms with their base objects can prevent this error.