Field name is not know error when trying to add a filter

Question

Hello all!
I need to add a filter dinamically to display a report. I'm using Crystal Reports 10 w/ RAS server.
There is an sql statement in Database Fields > Command. It uses a join and a correlation name for table name: TT.START_TIME.
I am getting a "Field name is not known" error:
"This field name is not known. Details: errorKind Error in File C:\WINDOWS\TEMP\{D375AB61-F7AE-4BCC-AF5E-6702C0EFDE10}.rpt: Error in formula . '{Command.TT.START_TIME} in DateTime (2007, 08, 01, 09, 00, 00) to DateTime (2007, 08, 24, 04, 45, 00)' This field name is not known. Details: errorKind"
I tried to specify the field the following ways:
Command.START_TIME
TT.START_TIME
START_TIME
TIME_TRACKER.START_TIME (time_tracker being the table name)
MAIN.TIME_TRACKER.START_TIME (main being the schema)
All of the above is giving the same field name not known error.
I am adding the filter the following way:
        String whereClause = "{Command.TT.START_TIME} in DateTime (2007, 08, 01, 09, 00, 00) to DateTime (2007, 08, 24, 04, 45, 00)";
        IFilter filter = rptClientDoc.getDataDefinition().getRecordFilter();
        filter.setFreeEditingText(whereClause);
        rptClientDoc.getDataDefController().getRecordFilterController().modify(filter);
I also tried the following where clause:
String whereClause = "{Command.TT.START_TIME} > DateTime (2006, 08, 01, 09, 00, 00) AND {Command.TT.START_TIME} < DateTime (2007, 08, 24, 04, 45, 00)";
still doing the same thing.
If anyone could please help me w/ this I'd really appreciate it!
Thank you!
Anastasia

Answer 1

The first formula was created using the selection formula expert. I only added the TT part after it didn't work giving the same message. The name the expert gives it after I click on the field is {Command.START_TIME}. Still gives the invalid field name error. -_- Could the rest of the forumula be causing the problem?
In regards to parameterizing the SQL Command, I spoke w/ the gentleman who creates these reports in Crystal, he says it's not possible, because sometimes we don't want a where clause and sometimes we do.
Is there a way to directly edit the SQL string itself which is in the Command through java?
Thank you very much for taking time to respond.
Anastasia