Giovanni Porcari | 1 Feb 01:05 2005
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Re: URGENT SQL Options Help

Il giorno 31/gen/05, alle 22:51, Jens Blomster ha scritto:

> I have been thinking about such things now and then. There already 
> exists opensource database relays/servers that very much resembles the 
> architecture of 4D for ADO, or your idea for a network server. Look at 
> for instance
>
> SQLRelay http://sqlrelay.sourceforge.net/
> ODBTP  http://odbtp.sourceforge.net/
>
> The whole solution is already there, with open source. These are 
> heavy-duty tools, no toys.
>

Yes. I know that there are a lot of suitable solution.  But our 
requirements are a bit different as we have to incorporate a 4d 
connection protocol too and because our  architecture well incorporate 
the logic in this server and not in clients while both SQLRelay and 
ODBTP seems to be just bridges. We use a very  robust engine  Twisted 
(http://twistedmatrix.com/services/success) that offers connections to 
almost all database using almost any protocol.

So no toys at all. Just a way to find different way to move to 
opensource world.

Ciao.

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Vincent Hoang | 1 Feb 01:13 2005
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4D JDBC Samples

Hello, I am new to this list.  I would like to know if
anyone could refer me to some JDBC samples for 4D.  I
have not been able to find any documentation on JDBC
for 4d.

TIA,
Vincent Hoang  

		
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Jeffreys, Mark | 1 Feb 01:44 2005
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Re: 4D Meetings 1.0.1

>From Sati Hillyer on Thu, 20 Jan 2005 14:40:43 

> Due to popular demand, 4D Meetings 1.0.1 
> has been released... 
> 
> <snip>

Sati:

	I participated in one of the first WebEx presentations for 4D
Meetings, and was quite impressed. I've been planning to crib from it to
implement an iCal connection for our Mac users. Now a potential project has
come up for which 4D Meetings' sync paradigm might be just the ticket.
However, I wanted to ask you if you knew of any obvious show-stoppers to
what I had in mind before I put a lot of time into investigating the
solution.

	Up to now, we have been running a Mac-only 4D Server setup. We are
considering adding some Windows clients so as to take advantage of some
Windows-based internal network connections and perhaps certain Windows-only
4D plug-ins. During some high-level discussion of the possibilities, I
showed off the 4D Meetings demo and how it communicated with iCal and
Address Book, and mentioned that connections to Outlook, etc. on the Windows
side could be added as well. This led to a long digression about
cross-platform integration, but produced one cogent question: Can you use
this method to sync 4D with the meetings on an Exchange server? I know that
the hooks for Outlook and Exchange are often quite different, and what is
accessible on an Exchange server depends on how it is configured, but is it
possible? And if so, is it only possible from 4D on a Windows client or
server, or could you do it from a Mac?
(Continue reading)

Bill Hutten | 1 Feb 01:47 2005

Re: 4D JDBC Samples

On 1/31/05 8:13 PM, "Vincent Hoang" <vinceberkeley@...> wrote:

> Hello, I am new to this list.  I would like to know if
> anyone could refer me to some JDBC samples for 4D.  I
> have not been able to find any documentation on JDBC
> for 4d.

Download the JDBC driver here:

    http://www.4d.com/products/downloads_4d.html

The download contains PDF documentation.

(Duplicate post from the JDBC list)

- bill

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ahmet toprak | 1 Feb 02:12 2005
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Re: Query editor trick wanted

Hello Jens:

Do you think you can store the query values in a utility table by user?

Then when a user starts a new query, you can present the stored values
for him/her as default values.

Ahmet Toprak

On Mon, 31 Jan 2005 22:51:46 +0100, Jens Blomster
<blomster@...> wrote:
> Is there really no way (trick) to let the Query editor keep and come up
> with the last used query, when Query editor is initiated from program
> code, just as it does when used from User mode?
> 
> My users get irritated when they have to re-type or re-load full query
> just to modify a little and query again.
> 
> Jens Blomster
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Sati Hillyer | 1 Feb 02:35 2005

RE: 4D Meetings 1.0.1

Hi Mark,

> However, I wanted to ask you if you knew of any obvious show-stoppers to
> what I had in mind before I put a lot of time into investigating the
> solution.

None that I have seen. However, the application is released "as is" so
please keep that in mind.

> ... produced one cogent question: Can you use this method to sync 4D with
> the meetings on an Exchange server? I know that the hooks for Outlook and
> Exchange are often quite different, and what is accessible on an Exchange
> server depends on how it is configured, but is it possible? And if so, is
> it only possible from 4D on a Windows client or server, or could you do it
> from a Mac?

Currently on the Windows platform, our synchronization focuses on Outlook.
However, the technology used can be applied to many other programs, Exchange
definitely being a possibility. The specifics involved, I have not had a
chance to try. Still, 4D Meetings has been designed in a modular fashion,
thereby enabling a developer to extend the application very easily.

I recommend you and any others interested, attending my Part 2 class so I
can show more of the inner workings of 4D Meetings. It will definitely be
beneficial when enhancements are requested. Presently, the class is open to
Partners only, but will be available to the general public in the near
future. 

Kind Regards,
Sati
(Continue reading)

Jeffrey Kain | 1 Feb 02:34 2005

Fraud? Morons? "IT Professionals"?

And now for something completely different...

Our call center received a phone call today from one of our largest clients
which happens to be a government-run healthcare facility. They were
panicked. After a scheduled reboot of their server, they had lost over 10
days worth of data. All of their work from January 18th through January 27th
was gone. Vanished, without a trace. Only the work from the 28th and today
(the 31st) was available (they are closed on the weekends).

The volume of data pumping through this server is very large, especially by
4D standards. The sole purpose of this database is to track HIV test
results, but for an entire state. 10 days of lost data isn't just an
inconvenience, it's a serious problem, especially given the sensitive nature
of the data.

We Timbuktu'd into their server and looked through the database tables. Sure
enough, there was a 10 day gap in all the tables. We looked through their
backups, and interestingly, there were no backups, save for one on the 17th
and one today. The backups restored fine, and we browsed the transaction
log. The same 10-day gap was in the log files as well.

The log file also showed that 4D Backup didn't think the data file was
missing any data, nor did it complain about a mismatched log file or data
file.

Holy  <at> #$*! 4D has lost over 10 days of data with nary a warning! And at one
of our largest installations! This is gonna be bad...

By this point, it's mid-evening, and I'm on the phone from home with our VP
of Operations. I'm Timbuktu'd into an Orchard computer which is Timbuktu'd
(Continue reading)

Steve Hussey | 1 Feb 02:44 2005

Re: Fraud? Morons? "IT Professionals"?

> What could possibly have been going on here? How could their main database
> server not even be turned on for 10 days? Of course, this server is managed
> by a state-run IT staff (a department of dozens, maybe hundreds). They
> surely won't have any idea (we can't talk to anyone until tomorrow, since
> everyone walks out the door at exactly 5:00 p.m.).

What if by some chance the properties got currupted and became read only for
the data file? (while it was running?). The applicztion will run but no data
will be saved to HD. Since the data file never 'changes' 4D Backup may not
run...

Steve

--

-- 
The lyf so short - the craft so long to lerne
"Never confuse information with knowledge."
"Think twice - code once."

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Jeffrey Kain | 1 Feb 02:47 2005

Re: Fraud? Morons? "IT Professionals"?

On 1/31/05 8:44 PM, "Steve Hussey" <shush@...> wrote:

>> What could possibly have been going on here? How could their main database
>> server not even be turned on for 10 days? Of course, this server is managed
>> by a state-run IT staff (a department of dozens, maybe hundreds). They
>> surely won't have any idea (we can't talk to anyone until tomorrow, since
>> everyone walks out the door at exactly 5:00 p.m.).
> 
> What if by some chance the properties got currupted and became read only for
> the data file? (while it was running?). The applicztion will run but no data
> will be saved to HD. Since the data file never 'changes' 4D Backup may not
> run...

This was my first thought as well (based on past posts to this list), until
I took a look at the Windows system logs. Even a healthy Windows system will
write several event log entries per day... Which is what is so
confusing/disturbing.

Jeff

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Jeffrey Kain | 1 Feb 02:49 2005

Re: Maximum memory

On 1/31/05 6:16 PM, "Jean-Yves" <JYFockHoon@...> wrote:

> 4D 2004 can handle up to 2 GB of memory, main memory and cache memory
> included. Main memory (a.k.a. Kernel memory) + Cache <= 2 GB.

Jean-Yves,

What are the maximums for 4D 2003, both Mac and Windows?

Jeff

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