MSSQL restore to a point in time using log backups

when you do an update or delete operation, you forget the Where condition or where the precision of the Where condition is insufficient, the result of data loss or update error after execution, if your database has a corresponding full backup, and cannot back up the log (truncate log on The checkpoint option is 1) You can use the backup of the transaction log for data recovery.

The steps to recover the data are as follows:

1, the first thing to do is to make a log backup (if you want to keep the log file size trunc. Log on chkpt. Option 1 Then it's not working)
Backup log dbName to disk= ' D:\NorthwindCS_log_20140908_2.bak '
2, restore a full-library backup, note the need to use with NORECOVERY, if there are other differential or incremental backups, then restore
Restore database DbName from disk= ' D:\NorthwindCS_full_20140901_2.bak ' with NORECOVERY
3, restore the last log backup is just the log backup, specify the point of recovery time to the time before the wrong operation
Restore log dbName from disk= ' D:\NorthwindCS_log_20140908_2.bak '
With stopat= ' 2014-03-16 11:10:00.740 '

truncate table,select into and other operations do not log logs and cannot take advantage of logs to recover the data ...

MSSQL restore to a point in time using log backups