He could create foreign keys, which are basically columns in a table with values that identify a record from another table.
However, even without foreign keys you can construct queries that link data from multiple tables together.
If you want to have certain icons available regardless of what tab your using, you should add them to the [Quick Access Toolbar].
Quick access toolbar is a way in which you can easily access the tool you want to use often.
C, using a firewall make sures no viruses enter your device while setting up the vpn
