DBCC SHRINKDATABASE

Shrink the size of the database data and log files.

Syntax
      DBCC SHRINKDATABASE ('database' option [,option] ) [WITH NO_INFOMSGS]

      DBCC SHRINKDATABASE ('database_id' option [,option] ) [WITH NO_INFOMSGS]

      DBCC SHRINKDATABASE (0 option [,option]) [WITH NO_INFOMSGS]

Options:
       target_percent
       NOTRUNCATE
       TRUNCATEONLY

Key:
     0            - Shrink the current database

   target_percent - Percentage of free space to remain in the database file

   NOTRUNCATE    - Free space at the end of the data file is not returned to the OS
                    (pages are still moved)
   TRUNCATEONLY  - Release free space at the end of the data file to the OS
                    (do not move pages)
	NO_INFOMSGS   - Suppress all information messages (severity 0-10)

Only one of the truncate options can be specified - they do not apply to log files.

Example

DBCC SHRINKDATABASE (MyDatabase);

“Men shrink less from offending one who inspires love than one who inspires fear” ~ Niccolo Machiavelli

Related:

ALTER DATABASE
DBCC SHRINKFILE
FILE_ID
sys.database_files
Equivalent Oracle command: ALTER DATABASE... DATAFILE...