MS SQL databases are susceptible to corruption due to internal and external factors like power failures and hardware issues, affecting data accessibility.
DBCC CHECKDB thoroughly scans the database, checking integrity across objects and detecting various issues, aiding in identifying and resolving corruption.
To repair corrupted SQL databases, the DBCC CHECKDB command needs to be executed, and if errors are found, appropriate repair options are suggested.
For inaccessible databases, switching to EMERGENCY mode allows administrators to execute integrity checks and necessary repairs using DBCC CHECKDB.
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