Solved

VB6 and Oracle 9.2/10g

Posted on 2011-03-08
2
1,208 Views
Last Modified: 2012-05-11
We have a VB6 application that access Oracle database
using 9.2 client.   When we try to run this application using a
10g client, we experience problems with database
connections getting dropped, application hangs, etc.

We'd prefer to use the 10g client, but we are not sure what
needs to be changed in order to get it to work.

Example below of logic we are using to create db connections
in app...
Set mvarSession = CreateObject("OracleInProcServer.xOraSession")

Set mvarConnection = Nothing
    Set mvarConnection = New RDO.rdoConnection
    sAltersession = "ALTER SESSION SET OPTIMIZER_MODE=RULE"
    With mvarConnection
        .Connect = "uid=" & sUserID _
                & ";pwd=" & sPassword _
                & ";DSN=" & sRemoteDatabase & ";"
        .CursorDriver = rdUseClientBatch
        .EstablishConnection rdDriverNoPrompt
        .Execute sAltersession
    End With

Open in new window

0
Comment
Question by:DoubleV47
  • 2
2 Comments
 
LVL 16

Accepted Solution

by:
HooKooDooKu earned 500 total points
ID: 35071616
Do you have the correct version of the Oracle InProc Server installed?

We've used the "Oracle InProc Server 2.3 Type Library" referenced by our VB project and use the OraSession and OraDatabase objects.

Dim WS as OraSession
Dim DB as OraDatabase
Set WS = CreateObject("OracleInProcServer.XOraSession")
Set DB = WS.OpenDatabase( DatabaseName, UserID & "/" & Password, ORADB_DEFAULT)
DB.ExecuteSQL("ALETER SESSION SET NLS_DATE_FORMAT = 'MM/DD/RRRR HH:MI:SS AM'")
0
 
LVL 16

Expert Comment

by:HooKooDooKu
ID: 35071656
BTW, to then open a record set...

We use the CreateDynaset() in OraDatabase.

For example, to get a read-only record set
Dim RS as OraDynaset
  set RS = DB.CreateDynaset(SQL$, ORADYN_READONLY)
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
How to measure sizes and angles in scanned images ? 3 55
Protecting vb6 & .Net code Obfuscation 18 97
How to connect SQL Server from my Oracle database? 11 73
Queries 15 34
You can of course define an array to hold data that is of a particular type like an array of Strings to hold customer names or an array of Doubles to hold customer sales, but what do you do if you want to coordinate that data? This article describes…
From implementing a password expiration date, to datatype conversions and file export options, these are some useful settings I've found in Jasper Server.
This video shows how to Export data from an Oracle database using the Original Export Utility.  The corresponding Import utility, which works the same way is referenced, but not demonstrated.
Via a live example, show how to restore a database from backup after a simulated disk failure using RMAN.

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now