Best options for running DB on SQL Server

[Newbie]

Hello,

Newbie to Access- I'm trying to figure out the easiest &
best way to keep my db up to date with added info on a
SQL Server. Should I add the info to my table on my PC &
then simply copy & paste the new table or db to overwrite
the existing? Or is there a way to "link" the database
on my PC to the DB on the server? Also how many people
can have the db.mde file open at one time?

Thanks for all the help as I'm still learning about all
this!