Inner select and select in "record selection"- Formula workshop problem

Question

Hi,
I am facing a bit tough situation in creating a Crystal Report.
I have two queries which I need to accommodate in the Report according to a given parameter (selectionParameter).
The queries are as follows:
select total, minvalue, customer
(select  sum(A) TOTAL, min(B) minValue, C customer
     from table1, table2
     where table1.A = table2.E
     AND B in (Select B from table3 where F=10)
     group by C
order by total, minValue
select total, minvalue, customer
(select  sum(A) TOTAL, min(B) minValue, C customer
     from table1, table2
     where table1.A = table2.E
     AND C in (Select C from table4 where G=20)
     group by C
order by total, minValue
These queries should be executed according to the selectionParameter set to 0 or 1. The only difference in these queries in one of the where clauses. In the formula workshop "record selection"- I have put an if clause.
if(selectParameter = 0) then (B in (Select B from table3 where F=10)
else C in (Select C from table4 where G=20).
This is not supported, since select statement cannot be used in the formula workshop!!.. And also, I have understood that what ever procedure I have been following is completely wrong, since the where clause written in "record selection" formula workshop applies to OUTER SELECT, but not to inner select, which is not what I want!!.
Please help me to solve this puzzle. I am eagerly waiting for a solution.
Thanks and Regards,
Janakiram Dandibhotla.

Answer 1

A command object is really the only way to create a custom SQL query in Crystal Reports.  You have the option to create a command object after you connect to your datasource.
Alternatively you can create a JavaBean class, create the custom query in the java page, retrieve the resultset, and use that in the report.