Applies to:
All versions of Centrify DirectAudit on all platforms
Question:
In a situation when purge sessions did not help to release disk space on SQL server, how do we shrink the database and rebuild the indexes to release disk space?
Answer:
Shrinking the DB and rebuilding the indexes should help to recover the disk space. Before you run the queries to shrink the DB, check with the Database Administrator to make sure the database is in simple recovery mode. It is recommended to run the following queries:
DECLARE @Table NVARCHAR(128)
DECLARE @Database NVARCHAR(128)
DECLARE @Command NVARCHAR(500)
PRINT N'Shrinking database files'
DBCC SHRINKDATABASE(0)
PRINT N'Rebuilding all indexes'
SET @Database = DB_NAME()
SET @Command = 'DECLARE TableCursor CURSOR FOR SELECT ''['' + TABLE_CATALOG + ''].['' + TABLE_SCHEMA + ''].['' +
TABLE_NAME + '']'' as TableName FROM [' + @Database + '].INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = ''BASE TABLE'''
EXEC (@Command)
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @Table
WHILE @@FETCH_STATUS = 0
BEGIN
PRINT 'Rebuilding all indexes on ' + @Table
SET @Command = 'ALTER INDEX ALL ON ' + @Table + ' REBUILD'
EXEC (@Command)
FETCH NEXT FROM TableCursor INTO @Table
END
CLOSE TableCursor
DEALLOCATE TableCursor
NOTE:
Make sure the user running script has sysadmin priviledge on the database server and since the script may take a lot of time to finish, it's recommended to run this script during off-hours or on the weekend.
Attached to the KB is the ShrinkDB_RebuildIndexes.sql file which has SQL statements above.
