Connect a System and Database into a LAN or Workgroup

Submitted by WTF.Flow on
Hello programmers and developers :) Is there anyone who knows how to connect the system to a LAN? Example: I have 15 units and I install all of this my system but the database is my problem. My questions is, is it possible to modify other users the records in one database in lan connectivity at the same time? How can I do this? My idea is I shared my folder which includes the system, into workgroup or LAN? And is possible input a records even the database is in read only mode? Free to leave a comments and suggestions Thanks