Data source name not found and no default drivers specified!

[mthakershi]

Hi all,

I have never connected to Paradox in my life. I need to use it with ADO in a project. I came to know that it needs BDE 5.1 and ADO 2.6 library. I have those. I am using following statement to connect to the database. I have already installed Paradox 9.0 on my system.

pCon.Open "Driver={Microsoft Paradox Driver(*.db)};DriverID=538;Fil=Paradox 5.X;DefaultDir=c:\TestGenExport\;Dbq=c:\TestGenExport\;CollatingSequence=ASCII;"

It gives me runtime error, saying "[Microsoft] [ODBC Driver Manager] Data source name not found and no default drivers specified."

Please reply to this.

Appreciate it,
Malay Thakershi

 

[ibearian]

what version of paradox are you using?

 

[mthakershi]

I am using 9.0 version of Paradox.
Malay

 

[ibearian]

the ms driver odbc driver does not work above verion 5 or 6 (i can't remember) you need the intersolv driver that ships with paradox. how and what are you connecting to your paradox db? and how are you using ado via odbc or native via bde ?

 

[footpad]

Malay,

Iberian's right; you'll want to install the Intersolv driver provided on your Paradox 9 CD. Once you have that, use the ODBC Data Sources Administrator to define your connection the Paradox tables.

Hope this helps...

-- Lance

 

[mthakershi]

Hey Guys,
Thanks for replying. I created system data source using INTERSOLV 3.11 32-BIT PARADOXFILE (*.DB) driver, which was installed on my system with Paradox. When I opened connection by following statement, it worked.
pCon.Open "DSN", "USERID", "PASSWORD"

But I don't want to use DSN when I connect via ADO. In this case, the connection string I am using is as follows:

pCon.Open "Driver={INTERSOLV 3.11 32-BIT ParadoxFile (*.db)};DriverID=538;Fil=Paradox 5.X;" & _
"DefaultDir=c:\TestPara\;Dbq=c:\TestPara\;CollatingSequence=ASCII;"

My all DB files are in "C:\TestPara\" directory. Now when I query one of the table 'Patient' by executing "Select Count(*) from Patient", it gives error saying this table does not exist.

Please suggest me a way to connect without creating DSN. The above connection string I found on one website and I suspect DriverID parameter, I am not sure.

Any help is appreciated.

Thanks again,
Malay

 

[ibearian]

So are you connecting paradox >>bde>>ODBC>>ADO>> application ?

(if so you are using the ado driver to interogate ODBC, Yes?)

What your application (packaged software or self built)?

I know little about ADO connection strings only that you generally configure them through the queiring application, (as you already know). I use Crystal Reports and ADO works great with its 'wizzard' making the connection strings. So i am lazy, but it easy.... should the 'Fil' command not be Paradox 9.x ??? Between paradox 5 and 7 they went to the BDE and created a whole new set of problems. So Paradox 5 is as different to paradox 9 as Access to FoxPro (well kind of, you probably already know).

The 'table does not exist' error generaly refers to the network directory not being set properly. Have you set this in the ODBC driver ?