>If I use a table and use it again.
>i.e.
>
>Use table again in 0 shared
>use table again in 0 shared
>
>How does this affect the record and file locking and buffering? If two people get the record the same time, will they both be able to changed the record since they are using the same table with two diffrent aliases?

Nope, the OS keeps track of the file and location within the file, not by the alias names chosen.