MySQL Error 3555: Data Dictionary Access Denied

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Description

This error, `ER_NO_SYSTEM_TABLE_ACCESS_FOR_DICTIONARY_TABLE`, indicates that MySQL cannot access or modify its internal data dictionary tables. This typically occurs when a user lacks sufficient privileges for an operation affecting database objects, or if the system tables themselves are compromised.

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Error Message

data dictionary table

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Known Causes

4 known causes

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Insufficient User Privileges

The MySQL user attempting the operation does not have the required permissions to access or modify the internal data dictionary tables.

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Corrupted Data Dictionary Tables

Critical internal system tables that constitute the data dictionary may be damaged or corrupted, preventing MySQL from accessing them.

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Incorrect File System Permissions

The operating system user running the MySQL server process lacks proper read/write access to the data directory where system tables are stored.

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Server Configuration Restrictions

Certain MySQL server configuration settings, such as `read_only` mode, might prevent modifications to the data dictionary.

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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General 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

Find Help

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Related Errors

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