data-konzept

'Database Console Command CHECKDB (DBCC CHECKDB)is used to check the integrity (physical & logical) of objects in a SQL Server database.The command is supported in databases that contain memory-optimized tables but the validation is only supported in disk-based tables. The DBCC repair option is unavailable in memory-optimized tables and therefore, leads to the need of regular database backup.In case an issue arises in a memory-optimized table, the data can be restored from the last backup done.

The various operations that are performed by CHECKDB are:

• DBCC CHECKALLOC execution on SQL database.

• DBCC CHECKTABLE execution on each table and view of SQL database.

• DBCC CHECKCATALOG execution on SQL database.

• Validation of content in the indexed view of the database.

• Validation of link-level consistency amidst the file directories and the table metadata.

• Validation of service broker data.

Since DBCC CHECKDB runs all the other commands it will not be necessary to run CHECKALLOC, CHECKTABLE and CHECKCATALOG commands separately.

DBCC CHECKDB Syntax

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http://www.sqlservercentral.com/blogs/sql-server-overview/2018/01/17/how-to-run-dbcc-checkdb-to-check-sql-database-integrity/