title: Firebird DB read deleted register after commit
body: <p>I have a firebird 2.5 database, and I was wondering if there is a way to rollback a transaction that was commited. Really, I'm asking if someone who could access to firebird database file, can read data that was deleted in a prior commited transaction.<br>
  I have a process (stored procedure) that delete some registers and commit. Could this registers be recovery for someone who can access to the database file?</p>