Creating a dsnless connection to a remote database

i am developing a desktop application to connect a remote if i connect to msn or yahoo messenger it goes to their database verifies the login information .how they are conneting to databases through internet.
do u have any idea regarding this.
I am using oracle database with vb ADODC control, if i specify the IP address of the computer to connect it gives an
TNS: Protocol adapter Error.

Can anyone help me out in this.

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moved to PAQ

** Mindphaser - Community Support Moderator **
This is an example of a working DSNless connection to a remote database using ADO

'Establishing DSNless Connection
strConn "PROVIDER=SQLOLEDB;SERVER=;uid=xxx;pwd=xxx;database=xxx;"
Set dbConn = CreateObject("ADODB.Connection")
dbConn.Open strConn
Set rs = dbConn.execute(strSQLQuery)

Doing it without the ADODC control but referencing ADODB should work


Try this
....'Reference the ADODB library for early binding
Dim Conn as New ADODB.Connection

Conn.Open "Driver={SQLServer};Server=YourServer;Uid=sa;Pwd=;Database=YOURDB"

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anitajAuthor Commented:
I have tried the same connection string but it doesn't work with Oracle database.
What could be the problem is that, Oracle uses different protocol. What could be the way out.

Any suggestions are welcomed.

anitajAuthor Commented:
I have tried the same connection string but it doesn't work with Oracle database.
What could be the problem is that, Oracle uses different protocol. What could be the way out.

Any suggestions are welcomed.

use this
Conn.Open "Provider=MSDAORA.1;User ID=sa;Data Source=SERVERNAME;Persist Security Info=False"

you can open VB add ADODC control on form and build Connection string from that & then copy & paste the string
Have you installed the appropriate Oracle drivers.
ADO needs the correct drivers for each database.

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