System catalog is a group of tables that database management system itself creates and maintains user-defined objects such as tables, schemas, domains, constraints, other catalogs, security and many more in the database. Tables in the system catalog are known as the system tables because they contain data that describe the structure of the database. Sometimes tables of the SQL Server database get corrupted due to several reasons like virus attach, system failure, power outages, etc. In such cases you should use proper method to rectify the problem. If you are not able to repair your SQL Server database then used as advanced third party SQL Server recovery software to fix the problem.
Consider a praticle scenario where you may encounter the given below error message while using the DBCC CHECKNAME command on SQL Server database:
"Database 'DBNAME': consistency errors in system catalogs prevent further DBCC CHECKNAME processing."
Cause of problem