Обсуждение: Problem connecting from Windows 9x/Me
Hi, Thank you for the ODBC driver, it has enabled us to access the PostgreSQL server from our Windows 2000 & XP machine. However, people on Windows 9x/Me machines are having problems. Basically, everytime they open the MS Access application, the application failed with the following error message: "ODBC -- connection to 'pgsql_sir' failed." There's a workaround for this - if we create a new table link to the PostgreSQL database, then afterwards everything works fine. I have no idea why it solves the problem (temporarily), but there you go. But of course this can not be / not feasible to be done by the users everytime they start up the application, so I hope somebody can help us to solve this problem. I've made the SQL.LOG files (ODBC tracing output) available : http://www.abangadek.com/tamu/ODBCLOG-unable-to-connect.txt Recorded the failure of our internal MS Access application to connect to the PostgreSQL server http://www.abangadek.com/tamu/ODBCLOG-connected-after-creating-new-link-in-Access.txt Recorded the table link creation process to the PostgreSQL server. Afterwards, the MS Access application can access the PostgreSQL database with no problem whatsoever. We'd be grateful for any assistance anyone can give us regarding this. Many thanks, Harry
Harry Sufehmi wrote: > > Hi, > > Thank you for the ODBC driver, it has enabled us to access the > PostgreSQL server from our Windows 2000 & XP machine. > However, people on Windows 9x/Me machines are having problems. > > Basically, everytime they open the MS Access application, the > application failed with the following error message: > "ODBC -- connection to 'pgsql_sir' failed." > > There's a workaround for this - if we create a new table link to the > PostgreSQL database, then afterwards everything works fine. I have no > idea why it solves the problem (temporarily), but there you go. > > But of course this can not be / not feasible to be done by the users > everytime they start up the application, so I hope somebody can help us > to solve this problem. Hmm - not seen this particular problem. I'd suspect a problem with name-lookup though - I've seen that cause strange problems with Access and linked tables/connections. Might be worth trying: 1. Connect using the IP address of the server, not it's name 2. Add the server's IP and name to the HOSTS/LMHOSTS file(s) There are details on step 2 on the web - just google. -- Richard Huxton Archonet Ltd
At 09:50 27/04/2005 +0100, Richard Huxton wrote: >Harry Sufehmi wrote: >>Hi, >>Thank you for the ODBC driver, it has enabled us to access the PostgreSQL >>server from our Windows 2000 & XP machine. >>However, people on Windows 9x/Me machines are having problems. >>Basically, everytime they open the MS Access application, the application >>failed with the following error message: >>"ODBC -- connection to 'pgsql_sir' failed." >>There's a workaround for this - if we create a new table link to the >>PostgreSQL database, then afterwards everything works fine. I have no >>idea why it solves the problem (temporarily), but there you go. >>But of course this can not be / not feasible to be done by the users >>everytime they start up the application, so I hope somebody can help us >>to solve this problem. > >Hmm - not seen this particular problem. I'd suspect a problem with >name-lookup though - I've seen that cause strange problems with Access and >linked tables/connections. >Might be worth trying: > 1. Connect using the IP address of the server, not it's name > 2. Add the server's IP and name to the HOSTS/LMHOSTS file(s) >There are details on step 2 on the web - just google. Thanks for the reply Richard. However, we already uses IP address to point to the server. If you wish to look at the raw data, they've been made available here : http://www.abangadek.com/tamu/ODBCLOG-unable-to-connect.txt http://www.abangadek.com/tamu/ODBCLOG-connected-after-creating-new-link-in-Access.txt Thanks, Harry
Hi,
I've tried creating a table link in Access automatically (so my users won't
have to). Unfortunately, it still unable to connect.
I've done further investigation on the ODBC trace logs, and it seems the
difference is here:
Success:
======================================
sir fffaa095-fff4e88d ENTER SQLDriverConnectW
HDBC 07A70D54
HWND 000005F4
WCHAR * 0x1F7D8B70 [ -3] "******\ 0"
SWORD -3
WCHAR * 0x1F7D8B70
SWORD 8
SWORD * 0x00000000
UWORD 1 <SQL_DRIVER_COMPLETE>
sir fffaa095-fff4e88d EXIT SQLDriverConnectW with
return code 0 (SQL_SUCCESS)
======================================
Failed:
======================================
sir fffaa095-fff4e88d ENTER SQLDriverConnectW
HDBC 07A70080
HWND 000005F4
WCHAR * 0x1F7D8B70 [ -3] "******\ 0"
SWORD -3
WCHAR * 0x1F7D8B70
SWORD 8
SWORD * 0x00000000
UWORD 3 <SQL_DRIVER_COMPLETE_REQUIRED>
sir fffaa095-fff4e88d EXIT SQLDriverConnectW with
return code -1 (SQL_ERROR)
======================================
However, I noted that the connection from a Windows 2000 machine (which
never encounter this issue) uses SQL_DRIVER_COMPLETE_REQUIRED parameter as
well (and it connects just fine). So probably that's not the culprit.
A discussion I found mentioned about the ODBC driver using Unicode,
therefore causing problems on Windows9x/Me machines.
I wonder if that's the case here as well.
Those are my findings so far.
Any help would be greatly appreciated.
Thanks,
Harry
At 14:37 27/04/2005 +0700, Harry Sufehmi wrote:
>Basically, everytime they open the MS Access application, the application
>failed with the following error message:
>"ODBC -- connection to 'pgsql_sir' failed."
>
>There's a workaround for this - if we create a new table link to the
>PostgreSQL database, then afterwards everything works fine. I have no idea
>why it solves the problem (temporarily), but there you go.
>
>But of course this can not be / not feasible to be done by the users
>everytime they start up the application, so I hope somebody can help us to
>solve this problem.
>
>I've made the SQL.LOG files (ODBC tracing output) available :
>
>http://www.abangadek.com/tamu/ODBCLOG-unable-to-connect.txt
>Recorded the failure of our internal MS Access application to connect to
>the PostgreSQL server
>
>http://www.abangadek.com/tamu/ODBCLOG-connected-after-creating-new-link-in-Access.txt
>Recorded the table link creation process to the PostgreSQL server.
>Afterwards, the MS Access application can access the PostgreSQL database
>with no problem whatsoever.
>
>We'd be grateful for any assistance anyone can give us regarding this.
>
>
>Many thanks,
>Harry