Records returned with static parameter, but don't when using dynamic

Question

Hello,
I am using CR Developer, Version 11.0.0.1282   (BTW, I keep seeing references to Release 1 and Release 2, and I'm not sure which my version is.)
I have a large database (500,000 land records) and each record has a value for Management Program and for Project Name. Within each Management Program there are many Project Names.
If I set up a static parameter for Management Program, users are able to select a single Management Program (i.e. WMA, for Wildlife Management Area) from the dropdown list. This returns all records that have WMA listed as the Management Program, which thus includes all Project Names. This works fine, but I want to return just those records that are for a single Project Name.
So I got rid of the static parameter and instead created a dynamic parameter, where the user first selects a Management Program, and then a single Project Name.
I think I set up the parameters correctly, and the select formula (see below) includes those parameters. When I then try to run the report, I successfully get the expected drop down boxes, where I can first pick out the Management Program I want, then the Project Names that apply just to that Management Program.
That part seems to work fine, but no data gets returned.
The SQL query seems fine:
SELECT "LAND_RECORDS"."TOWNSHIP",
"LAND_RECORDS"."TOWNSHIP_DIR",
"LAND_RECORDS"."RANGE",
"LAND_RECORDS"."RANGE_DIR",
"LAND_RECORDS"."SECTION",
"LAND_RECORDS"."FORTY_DSC",
"LAND_RECORDS"."GOVT_LOT",
"LAND_RECORDS"."GROSS_ACRES",
"LAND_RECORDS"."LAND_TYPE",
"LAND_RECORDS"."PUBLIC_USE_ADMINISTRATOR",
"LAND_RECORDS"."PUBLIC_USE_MGMT_PROG_CODE",
"LAND_RECORDS"."PUBLIC_USE_PROG_PROJ",
"LAND_RECORDS"."PUBLIC_USE_PROJECT_CODE",
"LAND_RECORDS"."SURFACE_OWNED_CODE",
"LAND_RECORDS"."PUBLIC_USE_MGMT_PROG"
FROM   "LNDREC"."LAND_RECORDS" "LAND_RECORDS"
WHERE  "LAND_RECORDS"."SURFACE_OWNED_CODE"='Y' AND "LAND_RECORDS"."PUBLIC_USE_MGMT_PROG"='WILDLIFE MANAGEMENT AREA' AND "LAND_RECORDS"."PUBLIC_USE_PROG_PROJ"='AGDER'
ORDER BY "LAND_RECORDS"."PUBLIC_USE_MGMT_PROG_CODE",
"LAND_RECORDS"."PUBLIC_USE_PROG_PROJ"
And here is the selection formula:
{LAND_RECORDS.SURFACE_OWNED_CODE} = "Y" and
{LAND_RECORDS.PUBLIC_USE_MGMT_PROG} = {?Management Program - PUBLIC_USE_MGMT_PROG} and
{LAND_RECORDS.PUBLIC_USE_PROG_PROJ} = {?Management Program - PUBLIC_USE_PROG_PROJ}
Can anyone tell me why no records get returned when I use the dynamic parameter, while those same records (as well as the other records for that Management Program) get returned when I use the static parameter?
Thanks in advance for any help you can give me.

Answer 1

Hi Sanjay,
When I wrote "glitch", I was pretty sure that was more likely indicative of a glitch in my primitive SQL skills than the software itself...     
There is indeed a unique ID# associated with each Project. The problem is that there are thousands of projects, and people in the field are much more likely to remember the project name than the 8-digit long ID#.
However, I found a way to make it work...
I retained my first two parameters (Management Program, and Project Name), but then added a 3rd parameter for Project Code. The use first selects the Management Program, then the Project Name, and then the project code. But the only project code that appears as an option is the single one associated with the project name, and when they click on that, only the correct results gets returned.
That one extra mouse click seems like a small price to pay so that you don't get extraneous results returned (i.e. getting results for both ANDERSON and ANDERSON LAKES when you ONLY request ANDERSON LAKES.)
So, problem solved...thanks again for your help.
Jon