How to connect to a database from QTP?

Use the below code for connecting a database from QTP.Const adOpenStatic = 3
Const adLockOptimistic = 3
Const adUseClient = 3
Set objConnection = CreateObject("ADODB.Connection")
Set objRecordset = CreateObject("ADODB.Recordset")
objConnection.Open "DRIVER={Microsoft ODBC for Oracle};UID=;PWD="
objRecordset.CursorLocation = adUseClient
objRecordset.CursorType = adopenstatic
objRecordset.LockType = adlockoptimistic
ObjRecordset.Source="select field1,field2 from testTable"
ObjRecordset.ActiveConnection=ObjConnection
ObjRecordset.Open 'This will execute your Query
If ObjRecordset.recordcount>0 then
Field1 = ObjRecordset("Field1").Value
Field2 = ObjRecordset("Field2").Value
End if