Article ID: 186384
Article Last Modified on 8/5/2004
APPLIES TO
- Microsoft OLE DB Provider for ODBC 2.0
- Microsoft OLE DB Provider for ODBC 1.0
- Microsoft OLE DB Provider for ODBC 1.5
This article was previously published under Q186384
SUMMARY
ICnvt.exe is a sample that reads a table from Oracle,
Microsoft Access, and Microsoft SQL Server. The OLE DB provider for ODBC
returns integer (numeric) data from Oracle in a DB_NUMERIC struct. To convert
the DB_NUMERIC to a Visual C++ long, you must use the IDataConvert interface.
ICnvt.exe demonstrates how to use the IDataConvert interface when reading an
Oracle table. The program also reads the same table from Microsoft Access and
SQL Server, where IDataConvert is not necessary.
MORE INFORMATION
The
following file is available for download from the Microsoft Download
Center:
Release Date:
Jun-01-1998
For additional information about how to download
Microsoft Support files, click the following article number to view the article
in the Microsoft Knowledge Base:
119591 How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most
current virus-detection software that was available on the date that the file
was posted. The file is stored on security-enhanced servers that help to
prevent any unauthorized changes to the file.
Using the Sample File
ICnvt.exe reads the oleDBtst table from Oracle, Microsoft Access,
and Microsoft SQL Server. The Microsoft Access file "oleDBtst.mdb" (included)
uses the DSN "oleDBtst" with the sample program. You will need to create the
oleDBtst table on Microsoft SQL Server and Oracle.
The Microsoft SQL
Server Script to create table oleDBtst:
CREATE TABLE oleDBtst (
autoIndx int IDENTITY (1, 1) NOT NULL ,
lname char (12) NULL ,
fname char (12) NULL ,
height float NULL ,
weight float NULL
)
// Insert some Test data
insert into oleDBtst (lname,fname,height,weight) Values (
'Reubin','billy',44,251)
insert into oleDBtst ( lname,fname,height,weight) Values (
'Mama','Joe',92,154)
insert into oleDBtst ( lname,fname,height,weight) Values (
'Klifton','billy',59,354) Oracle:
create table oleDBtst ( autoIndx number primary key, lname
varchar2(12),fname varchar2(12),height float, weight float);
SQL> insert into oleDBtst ( lname,fname,height,weight) Values
('Klifton','billy',59,354); To compile the program for Oracle, uncomment the following line from
the top of the page:
//#define xORACLE
(c) Microsoft Corporation 2000, All Rights Reserved. Contributions by
Rick Anderson, Microsoft Corporation.
Additional query words: ICNVT kbdse
Keywords: kbdownload kbdatabase kbfile KB186384