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SQLGetData returns an incorrect result with the Oracle ODBC driver when the select statement contains a CASE expression

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TitleSQLGetData returns an incorrect result with the Oracle ODBC driver when the select statement contains a CASE expression
URL NameSQLGetData-returns-an-incorrect-result-with-the-Oracle-ODBC-driver-when-the-select-statement-contains-a-CASE-expression
Article Number000185617
EnvironmentProduct: Connect for ODBC Oracle Wire Protocol driver
Version: 07.15.0256
OS: all supported platforms
Database: Oracle
Application: all supported applications
Question/Problem Description
SQLGetData returns an incorrect result with the Oracle ODBC driver when the select statement contains a CASE expression.
Steps to Reproduce
Clarifying Information
1. Set the value of the Oracle CURSOR_SHARING parameter to 'FORCE' (the value that is set can be checked with calling "SELECT * FROM v$parameter WHERE name like 'cursor_sharing'"):

alter system set cursor_sharing='FORCE'

2. Execute the following statements:

CREATE TABLE TESTC (TEST_CHAR varchar(30)) 
SELECT case when TEST_CHAR = 'N' then null else 'YES' END as WEB_SUP FROM TESTC

3. Do the following calls:

SQLExecDirect(SELECT case when TEST_CHAR = 'N' then null else 'YES' END as WEB_SUP FROM TESTC)
SQLDescribeCol
SQLFetch
SQLGetData

In an ODBC trace, the following is seen:

EXIT SQLGetData with return code 0 (SQL_SUCCESS)
HSTMT 0x000000000073C500
UWORD 1
SWORD 1 <SQL_C_CHAR>
PTR 0x000000000021BC80 32 "YES\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0"
SQLLEN 300
SQLLEN * 0x000000000021C040 (32)

"YES" needs to be returned instead of "YES\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0".
Error Message
Defect NumberDefect 38269
Enhancement Number
Cause
Resolution
Fixed in hot fix 07.16.0264. 
Refer to "Connect and Connect64 for ODBC hot fix download and install instructions" for instructions on how to download and install the hot fix.
Workaround
Notes
Last Modified Date6/2/2016 8:59 AM
Files
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