December 2017
Intermediate to advanced
434 pages
10h 14m
English
Content preview from SQL Server 2017 Administrator's Guide
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Check database integrity
This task uses the DBCC CHECKDB() function. The DBCC shortcut means database consistency checker. There are more DBCC functions on SQL Server, for example, DBCC SHOW_STATISTICS() to explore index or column statistics, DBCC SHRINKFILE() to return free space from database file back to the operating system, and so on. The DBCC CHECKDB() function checks consistency and readability of the database from three perspectives calling three other DBCCs:
- DBCC CHECKTABLE(): This function tests the readability of table data pages
- DBCC CHECKCATALOG(): This function tests the readability of metadata objects
- DBCC CHECKALLOC(): This function tests the logical consistency of allocation units
The DBCC CHECKDB() function can find inconsistent ...
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