DDL Execution Fails
| Cause | Fix |
|---|---|
| Database not reachable | Test connectivity: telnet <DB_HOST> <PORT> |
| Missing passwords | Ensure all *_PASSWORD variables are non-empty in Airflow |
| SQL syntax error | Check task log for the failing SQL statement |
To resume: Set CDM_<DB_TYPE>_DDL_START_POINT to the failed step ID and re-trigger.