Multiple queries in single report

Hi,

I would like to use more than 1 sql query in the report and I have created different dataset for each and every query. All queries will return data based on a parameter. The first dataset only returns all the data. Rest of the dataset returns only First or last or sum values. But I want to  pull all the records from other datasets too..

How we can achieve this. Please help me to resolve this issue.

Thanks, Sengwa