use master
dbcc rebuild_log('AIS20140331140513','C:\Program Files\Microsoft SQL Server\MSSQL\Data\AIS20140331140513_log.ldf') dbcc rebuild_log('AIS201403311405
dbcc rebuild_log('AIS20140331140513','C:\Program Files\Microsoft SQL Server\MSSQL\Data\AIS20140331140513_log.ldf') dbcc rebuild_log('AIS201403311405