Help: Any way to rollback/undo a simple update command?

[Robert McCormick]

I accidentally did an update to multiple rows in a table, instead of just one row.

Desired: update mytable set value='something' where id=7;

Actual: update mytable set value='something';

So obviously every row in table was changed.

Now, this is a low-volume database, so no other records have been changed.

Is there a way to "undo" this update command?

We know about rolling back to last back and applying binary changes, but this will take quite a bit of time.

Any faster way to undo this simple one-table update command?

Thanks
-Bob