Thanks for your help.

Normally I should know this.

My idea is to change the recovery model and to shrink the transaction protocol with a script.

The change the current database.

See as the following:

DECLARE @strDatabaseName varchar(32)

DECLARE @strTransactionProtocol varchar(32)

DECLARE @strSQL varchar(256)

SET @strDatabaseName = DB_NAME()

SET @strSQL = 'Alter Database ' + @strDatabaseName + ' Set Recovery Simple'

EXEC (@strSQL)

SET @strTransactionProtocol = (SELECT name FROM sys.database_files WHERE type = 1) --LOG

SET @strSQL = 'DBCC SHRINKFILE(' + @strTransactionProtocol + ', 1) WITH NO_INFOMSGS'

EXEC (@strSQL)