Help w/ "where TRUNC(date_field)"

Question

I'm a "newbie" to pl/sql - Oracle and I'm hoping someone can help me.
I need to extract records based on a given date range and I've put together the following query:
SELECT *
FROM abc.table
WHERE TRUNC(ld_dt) = TO_DATE('11-SEP-10','DD-MON-YY')
When I run this thru SQLplus or ODI any date fields output as 04/11/2010 12:00:00 (or 00:00:00) - I'm loosing the time portion of the field... I've narrowed it down to the WHERE TRUNC(). This query runs correctly in SQLplus & ODI if I remove the WHERE clause and format any date columns as TO_CHAR(ld_dt,'MM-DD-RR HH:MI:SS')... Its been a bit mind-boggling because it works in TOAD but I need it to work with SQLplus or ODI.
NLS_DATE_FORMAT: DD-MON-RR
NLS_DATE_LANGUAGE: AMERICAN
We’re running ODI 10.1.3.6.2 – 10g R2 Database
Thanks !

Answer 1

Hi,
I am not sure what you are doing. I cannot reproduce your problem.
Please post some create table and insert statement, test cases of your queries that are reproducible.
Try it in sqlplus and copy paste your output here.
SQL> alter session set nls_date_format='MM/DD/YYYY HH24:MI:SS';
Session altered.
SQL>
SQL> select * from test;
DT                  LD_DT
04/04/2011 16:54:45 04/04/2011 16:53:45
04/04/2011 16:54:15 04/04/2011 16:53:45
04/04/2011 16:54:05 04/04/2011 16:53:45
04/04/2011 16:54:00 04/04/2011 16:53:45
SQL> select * from test where trunc(ld_dt)=trunc(sysdate);
DT                  LD_DT
04/04/2011 16:54:45 04/04/2011 16:53:45
04/04/2011 16:54:15 04/04/2011 16:53:45
04/04/2011 16:54:05 04/04/2011 16:53:45
04/04/2011 16:54:00 04/04/2011 16:53:45
SQL>
SQL> SELECT * FROM test WHERE TRUNC(ld_dt)=TO_DATE('04-APR-11','DD-MON-YY');
DT                  LD_DT
04/04/2011 16:54:45 04/04/2011 16:53:45
04/04/2011 16:54:15 04/04/2011 16:53:45
04/04/2011 16:54:05 04/04/2011 16:53:45
04/04/2011 16:54:00 04/04/2011 16:53:45
SQL>