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Oracle Wire Protocol driver returns incorrect results while comparing timestamps

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TitleOracle Wire Protocol driver returns incorrect results while comparing timestamps
URL Nameoracle-wire-protocol-driver-returns-incorrect-results-while-comparing-timestamps
Article Number000183193
EnvironmentProduct: Connect for ODBC Oracle Wire Protocol driver
Version: All supported versions
OS: All supported platforms
Database: Oracle
Application: All supported apllications
Question/Problem Description
Oracle Wire Protocol driver returns incorrect results while comparing timestamps
Steps to Reproduce
Clarifying Information
DDL:

1. CREATE TABLE BIGAFED_ALLTYPES_SDS1 (TMSTP TIMESTAMP)
2. INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (timestamp '2002-03-22 15:25:49.000000'),
INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (timestamp '2002-03-22 15:25:50.000000'),
INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (timestamp '2002-03-22 15:25:51.000000'), 
INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (timestamp '2002-03-22 15:25:52.000000'), 
INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (null), 
INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (null), 
INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (timestamp '1984-01-30 07:00:00.000000'), 
INSERT INTO BIGAFED_ALLTYPES_SDS1 VALUES (null)

Steps to Reproduce:

Execute :
 SELECT A0."TMSTP" C0 FROM BIGAFED_ALLTYPES_SDS1 A0 WHERE (TO_DATE(TO_CHAR(A0."TMSTP",'HH24.MI.SS'),'HH24.MI.SS') < {t'07:07:22')

Observed Results:

SQLExecDirect:
In: hstmt = 0x00000000003AA9C0, 
szSqlStr = "SELECT A0."TMSTP" C0 FROM BIGAFED_ALLTYPES_SDS1 A0 WHE...", cbSqlStr = -3
Return: SQL_SUCCESS=0

Get Data All:
"C0"
2002-03-22 15:25:49.000000
2002-03-22 15:25:50.000000
2002-03-22 15:25:51.000000
2002-03-22 15:25:52.000000
1984-01-30 07:00:00.000000
5 rows fetched from 1 column.

Expected Results:
Get Data All:
"C0"
1984-01-30 07:00:00.000000
1 row fetched from 1 column.

 
Error Message
Defect Number
Enhancement Number
Cause
This is not a driver issue. The cause is an incorrect SELECT statement
Resolution
Use the below SELECT statement:
SELECT TMSTP C0 FROM BIGAFED_ALLTYPES_SDS1 WHERE (TO_DATE(TO_CHAR(TMSTP,'HH24.MI.SS'),'HH24.MI.SS') < TO_DATE('07:07:22','HH24.MI.SS'))
Workaround
Notes
Last Modified Date9/12/2022 11:29 PM
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