My Oracle Support Banner

ODBC Calls to SQLExtendedFetch Hangs When Selecting CLOB Columns Populated By EMPTY_CLOB() (Doc ID 2900588.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Standard Edition - Version 21.3 and later
Oracle ODBC Driver - Version 21.3.0.0.0 and later
Information in this document applies to any platform.

Symptoms

After upgrading ODBC driver from 19c to 21c, SQLFetchScroll() hangs when fetching the result of a query which includes lob data as shown in below sample code:

This problem can be reproduced both on Windows and on Linux, so that this is not a port specific issue.

Changes

 Upgraded ODBC driver from 19c to 21c

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.