SQL SSRS 2008 DateTime Calendar Control and Oracle 10g Data Source

Question

Hello. I am creating reports in SSRS 2008 using the calendar control for a date range. Let's say we select a start date of 3/3/2012. This parameter is sent into my SQL statement in the WHERE clause which is executed against an Oracle 10g database. All syntax has to be in SQL that Oracle understands, so no CONVERT or CAST.
The format of the date is throwing an error "ORA-01843: not a valid month" when I try to use the following:
SELECT *
FROM TABLE
WHERE STARTDATE >= TO_DATE('3/03/2012', 'MM/DD/YYYY')
I get ORA-01722: invalid number when I try the following:
SELECT *
FROM TABLE
WHERE STARTDATE >= >= TO_CHAR('3/03/2012', 'MM/DD/YYYY')
I cannot find a way to format the date parameter in SQL Server SSRS before it gets to the SQL to be executed in Oracle.
Please help.
Thanks,
Sunny

Answer 1

920616 wrote:
sb92075: I am showing you how Oracle renders the date if I do a simple select from the table from which I am trying to pull data. You are right, it sure doesn't prove anything other than how the date looks right out of the Oracle database, but hopefully, it will give a clue as to how I need my SSRS date parameter to work.
Hans Forbrich:
I get ORA-01722: invalid number when I try the following:
SELECT *
FROM TABLE
WHERE STARTDATE >= TO_CHAR('3/03/2012', 'MM/DD/YYYY')
Solomon:
It works. The problem is getting the parameter '3/3/2012' into a usable format for Oracle.
Let's assume an application is sending in '3/3/2012' which will be used in an Oracle query (no PL/SQL allowed, nor can I create functions, stored procedures, etc - only straight up SQL). How can I prepare the parameter to successfully do the compare on the Oracle Date field?
12:50:23 SQL> select TO_CHAR('03/03/2012', 'MM/DD/YYYY') from dual;
select TO_CHAR('03/03/2012', 'MM/DD/YYYY') from dual
ERROR at line 1:
ORA-01722: invalid number
12:51:00 SQL> ed
Wrote file afiedt.buf
  1* select TO_DATE('03/03/2012', 'MM/DD/YYYY') from dual
12:51:20 SQL> /
TO_DATE('03/03/2012
2012-03-03 00:00:00