How do I create a dynamic parameter based on a formula?

Question

Hi,
I've developed a report, in CR 11, that is parameterized based on the field "ticket_date".  I've created a Min and a Max formula so that I can select a date range. This works wonderfully. However, my date list is growing longer by the day and each day I have to run the report I need to scroll through an even longer list of date values. This will become increasingly impractical with each passing month and year.  I would like create a "Year" paramater and a "Month" parameter so that I can first select the Year, then the month(s), then the dates.
When I attempted to create a parameter based on the formula, "Year (), the formula wasn't in the list of available values to create a parameter on.
How can I address this requirement?
thanks in advance!
Mark

Answer 1

Hi Abhilash,
Looks like I was able to create a Year field in the Command - thanks for the tip!
Before I close this off as answered can you take a look at two sets of SQL I wrote in the Command that I'm getting errors on and offer advice on where the error is occurring.
Example 1
The SQL I attempted to write must be close though:
Select ft.sequence, ft.ticket_date, coff.office_name, comp.subscriptions_id from
field_tickets as ft, company_offices as coff, companies as comp
INNER JOIN jobs ON comp.companies_id=jobs.companies_id
INNER JOIN field_tickets ON jobs.jobs_id=field_tickets.jobs_id
LEFT JOIN company_offices ON jobs.company_offices_id=company_offices.company_offices_id
Where comp.subscriptions_id=7.00
When I attempt to save this I get an error:
"Failed to retrieve data from the database. Details: Exception: Error Message: Java Heap Space"
Example 2
I get the error, "Not unique table/alias: 'custom_jobs_values'" for the following SQL Command
SELECT companies., jobs., field_tickets., regions., customers., custom_jobs_values. FROM
companies, jobs, field_tickets, regions, customers, custom_jobs_values
LEFT JOIN custom_jobs_values ON jobs.jobs_id=custom_jobs_values.jobs_id
INNER JOIN regions ON companies.regions_id=regions.regions_id
INNER JOIN jobs ON companies.companies_id=jobs.companies_id
INNER JOIN field_tickets ON jobs.jobs_id=field_tickets.jobs_id
INNER JOIN customers ON jobs.customers_id=customers.customers_id and
companies.subscriptions_id=4.00
thanks!
Mark