To create a report in Report Designer, follow this process.
- Connect to a data source (database, usually, though you can also pull data from a flat file)
- Constrain the data with a query
- Arrange data elements in the Report Designer workspace
- Apply formatting and add extra graphical elements
- Create formulas or calculated fields using data retrieved from your query
- Publish the report, either to the Pentaho Server, or locally as a PDF or other supported file format
Your report will consist mostly of data retrieved from a database query that you will create through Report Design Wizard, SQL Query Designer, MQL Query Builder, or by hand. Once you have a dataset, you are able to further constrain it to show specific details, and then move on to report layout and design.