🚀 go-pugleaf

In article <IekfBXu00Uh7Q_EEdp@andrew.cmu.edu> dt1n+@andrew.cmu.edu (David Tsai) writes:
>Hi again,
>    I'm sorry to ask another question [I'm hogging up bandwidth :} ].
>
>I am converting a FileMaker Pro 1.0 database into a 4D relational database.
>The version of 4th DIMENSION I am using is 2.0.10.  The "About 4th
>DIMENSION" in the apple menu says that is a single-user configuration.  
>    My boss wants me to set the new database up so that people can login
>and access the information from any MAC on our network.  The MAC with
>the database will be located in her room, but the information needs to
>be accessed at various locations.  Since this is a single-user
>configuration will I be able to do this?

First of all you will need a copy of the 4D runtime (or the full version of
4D) on each machine that you are going to run your database clients.  Second
you will need a way of letting others log onto the Mac where the database is
going to reside.  To switch to multiuser, hold down the mouse button after
you launch 4D and wait for a dialoge to come up that has some options on it.
One of the options is to use multiuser or single user mode.  Change it to
multiuser.  Anyone who attempts access the database in singleuser mode AFTER
others connect will get an error -54 message (very confusing if you don't
happen to know the error codes right off).  

>I don't think our version of 4D can do this. If I can't, how can I get around
>this?

The most recent version of 4D (not counting 3.0) is 2.2.3.  You really ought to
get yourself upgraded to that version.  We have encountered far fewer problems
using it (as opposed to a few earlier releases).

>    If someone has the time, could they explain to me the difference between
>single-user, multi-user, client, server, driver and engines?  [They
>never taught this to me in class and I don't know where else I am going
>to find info on this.]  All information will be greatly appreciatedd. 
>Thanks everyone.
>
>Dave
Single-user: one person access the database at a time.  Faster than multi-user
	     under 2.x.x.
Multi-user : Multiple people can access the same database (from a server
	     or someone sharing his/her volume via file sharing).  Can be
	     really slow depending on the application.  Calls for really
	     well written code.
Client     : An application that connects to a database engine to access
	     the data.
Server     : A program that controls the information sent to and from a data-
	     base. (Finally available in 3.0)

-- 
-----------
Pat Bronson (bronson@engr.latech.edu)
  "Are you going to come quietly or do I have to use earplugs?"
                                                    ---- From The Goon Show