Rule Definition
Presence of synonyms that are based on non existent object will generate error at execution time when accessed. Even if synonyms is authorized at creation time, the execution time will generate error.
Remediation
Clean-up orphaned synonyms.
Violation Code Sample
CREATE SYNONYM SYN_TABLE_B FOR ABC.TABLE_B; -- ABC.TABLE_B is missing
Fixed Code Sample
DROP SYNONYM SYN_TABLE_B;
Reference
Oracle documentation, for example
Related Technologies
Technical Criterion
Programming Practices - Unexpected Behavior
About CAST Appmarq
CAST Appmarq is by far the biggest repository of data about real IT systems. It's built on thousands of analyzed applications, made of 35 different technologies, by over 300 business organizations across major verticals. It provides IT Leaders with factual key analytics to let them know if their applications are on track.