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Q196773: FIX: Slow View Performance with Sybase ODBC Driver

Article: Q196773
Product(s): Microsoft FoxPro
Version(s): WINDOWS:2.5,5.0,5.0a,6.0
Operating System(s): 
Keyword(s): kbDatabase kbODBC kbvfp500a kbvfp600 KbDBFDBC kbMDAC250
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a, 6.0 
- Microsoft Data Access Components version 2.5 
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SYMPTOMS
========

When you create a view with either the View Designer or with CREATE SQL VIEW and
using a Sybase ODBC driver to connect to a Sybase server, the view performance
can be slow when you are working with large tables.


RESOLUTION
==========

Step-by-Step Procedures
-----------------------

1. Open the ODBC Manager from the Control Panel.

2. Double-click on the Sybase DSN for the connection that will be used in Visual
  FoxPro.

3. Click the Advanced tab, and click Performance.

4. Set the Prepare Method to None (default is Full).

STATUS
======



MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

1. Install the Sybase ODBC driver.

2. Create a Sybase datasource that connects to a database with a table of at
  least 100,000 rows.

3. Open a Visual FoxPro database. Use MODIFY DATABASE to open the Database
  Designer. Right-click on the Database Designer window and click Connections.
  Click New and create a connection based on the Sybase datasource.

4. Right-click on the Database Designer window and click New Remote View...

5. Click New View in the New Remote View dialog box. In the following dialog
  box, select the connection created in step 3.

6. When the dialog box opens with a list of tables, select a table with at least
  100,000 rows.

  NOTE: Depending upon the size of the table, the View Designer might take
  several minutes to respond.

Sybase is manufactured by Sybase, a vendor independent of Microsoft; we make no
warranty, implied or otherwise, regarding this product's performance or
reliability.

(c) Microsoft Corporation 1998, All Rights Reserved. Contributions by Mike
Stewart, Microsoft Corporation.


Additional query words:

======================================================================
Keywords          : kbDatabase kbODBC kbvfp500a kbvfp600 KbDBFDBC kbMDAC250 
Technology        : kbVFPsearch kbAudDeveloper kbMDACSearch kbMDAC250 kbVFP500 kbVFP600 kbVFP500a
Version           : WINDOWS:2.5,5.0,5.0a,6.0
Issue type        : kbbug
Solution Type     : kbfix

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