Firebird Documentation IndexFirebird 3.0.6 Release NotesCompatibility Issues → System Tables are Now Read-only
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System Tables are Now Read-only

The system tables (RDB$—) are now read-only. Attempting any DDL or insert/update/delete statement on them will be rejected.

Prev: Configuration ParametersFirebird Documentation IndexUp: Compatibility IssuesNext: SQL Language Changes
Firebird Documentation IndexFirebird 3.0.6 Release NotesCompatibility Issues → System Tables are Now Read-only