Error
Error Code:
1047
MariaDB Error 1047: Unknown Command Received
Description
MariaDB Error 1047, 'Unknown command', indicates that the database server received an instruction or query that it could not recognize or process. This error commonly points to issues with SQL syntax, unsupported features, or potential communication problems that corrupt the command.
Error Message
Unknown command
Known Causes
3 known causesInvalid SQL Syntax
The SQL statement executed contains typos, incorrect keywords, or a structure that does not conform to MariaDB's expected syntax rules.
Unsupported Feature or Version Mismatch
The command or SQL feature used is not available in your specific MariaDB server version, or it requires a plugin that is not currently enabled or installed.
Corrupted Communication Packet
The data packet containing the command might have been corrupted during network transmission, causing the server to receive an uninterpretable instruction.
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