Emmitt,

 

I may not have been as clear in my question (previously) as I should
have been.  The ODBC connection is only needed when entering quotes and
the quote form comes up with a bit button EEP.  I reread the dialog
between Buddy and me (as well as you). Here is the way things are set
up:

 

The Form comes up with multiple choices one can make.  I have one
section made up of a group bar with multiple group buttons.  None of
these need the ODBC connection.  I then have five independent bit
buttons I use for entering or editing quotes.  Only two of these would
need the ODBC connection.  

 

Based on what you mentioned to Bob, would it be better to put the
SCONNECT and SATTACH in the bit button rather than the DAT file since I
only need it for the quote forms?

 

Jim    

 

________________________________

From: [email protected] [mailto:[email protected]] On Behalf Of Emmitt
Dove
Sent: Monday, June 08, 2009 8:16 PM
To: RBASE-L Mailing List
Subject: [RBASE-L] - RE: DSN question

 

Jim,

 

In your case I believe the conclusion was to leave it in the .DAT.  I
don't recall the specifics, but I do recall coming to that conclusion.

 

Emmitt Dove

Manager, Converting Applications Development

Evergreen Packaging, Inc.

[email protected]

(203) 214-5683 m

(203) 643-8022 o

(203) 643-8086 f

[email protected]

 

From: [email protected] [mailto:[email protected]] On Behalf Of Jim
Belisle
Sent: Monday, June 08, 2009 6:00 PM
To: RBASE-L Mailing List
Subject: [RBASE-L] - RE: DSN question

 

Emmitt,

 

I had this discussion a few weeks back.  I thought I would have to put
the SCONNECT into the DAT file and that is what I did.  What you mention
here is putting it into the EEP in the form, is that correct? 

 

Jim

 

________________________________

From: [email protected] [mailto:[email protected]] On Behalf Of Emmitt
Dove
Sent: Monday, June 08, 2009 1:55 PM
To: RBASE-L Mailing List
Subject: [RBASE-L] - RE: DSN question

 

Bob,

 

In 6.5 we had to leave the SCONNECT in place since you couldn't use it
in an eep.  In 7.x, I adopted the practice of performing the SCONNECT
right before it is required and SDISCONNECT immediately afterwards.  My
thinking is that leaving fewer files open minimizes the opportunity for
corruption.

 

As Buddy noted in an earlier exchange, once the SATTACH is performed
(and part of your schema), any access of the table will (apparently)
perform the SCONNECT without you having to explicitly issue it.  I'm not
sure we should depend on this always being true, and it also begs the
question as to whether the database remains open for the balance of the
user's session.  I just performed a test, watching Open Files in
Computer Management on the server, and it appears that the referenced
database remains open until the user leaves R:BASE.

 

Emmitt Dove

Manager, Converting Applications Development

Evergreen Packaging, Inc.

[email protected]

(203) 214-5683 m

(203) 643-8022 o

(203) 643-8086 f

[email protected]

 

From: [email protected] [mailto:[email protected]] On Behalf Of
[email protected]
Sent: Monday, June 08, 2009 2:32 PM
To: RBASE-L Mailing List
Subject: [RBASE-L] - DSN question

 

Almost all of my apps tie in with other software databases.  The
question

I have :

 

A) is it best to SConnect right before I use an ODBC table and then
SDisconnect

immediately afterwards or

 

B) SConnect at the begining of a session and leave connected until the
user logs off.

 

Note that these apps may have 20 users running the Rbase app at a time,
all day long and thus

have 20 ODBC connections to the foreign database open as well.    The
ODBC tables

will get accessed, depending on which menu option is being run, from
only occasionally during the

day to rather frequently.  Such as every 10 minutes or so.

 

I currently have the apps setup to SConnect at startup of the main Menu
and stay connected all

day or until the Main Menu is closed.  However, I have been running into
issues with the foreign ODBC 

engine locking up occasionally. The only major change in the system is
that more people are 

concurrently using my app and thus more  connections to the ODBC driver
on the server.  

(Plenty of memory etc. so that should not be an issue)

 

I am wondering if SConnecting and SDisconnecting "on the fly" would be a
better practice or not?

I.E. Leave all DSN sources "unconnected" until an ODBC table is needed,
SConnect, use the table

data, then SDisconnect immediately afterwards.

 

Any thoughts?

 

Thanks,

-Bob

Reply via email to