Logged events on SQL Server

Could any tell me if under MS SQL Server table changes are classed as logged events and saved in the transaction logs?

Many Thanks,

John

[JHausmann]

None of my documentation is clear (you probably have had the same results). You could try to make it so by wrapping it with a begin/end transaction (if it's permissible). I suspect that it's not a logged event, under normal circumstances.