Error
Error Code:
ORA-28160
Oracle ORA-28160: Missing EXCEPT Keyword
Description
The ORA-28160 error in Oracle Database indicates a syntax error where the `EXCEPT` keyword is missing from a SQL query that requires it, commonly in set operations. This error halts query execution, preventing data retrieval or modification.
Error Message
ORA-28160: missing EXCEPT keyword
Known Causes
3 known causesIncorrect Set Operator Syntax
The `EXCEPT` keyword is missing within a set operation (e.g., `UNION`, `INTERSECT`, `MINUS`) where it's required to return rows from the first query that are not present in the second.
Typographical Error
A typo or misspelling occurred when typing the `EXCEPT` keyword.
Incomplete Query
The query was not fully constructed, and the `EXCEPT` clause was unintentionally omitted.
Solutions
Coming SoonGeneral Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service