Cannot give recommendations on what you have said.

depending on what troubleshooting is applied, will mean that the end result could be different.

IF a restore can be used to rollback the change

EmpNo will be 1

otherwise

EmpNo will be (depending on the level of corruption, possible 2 or unreadable)

and once again

if restore is done from teh previous night, then the user update has not happened and the trigger wouldnt have fired.

otherwise

depending on what is stored on that data page, you will see nothing for that data page and updated values populated by the trigger for other dependant tables if they are not on that data page