The easy way:

Use some ready-made charting component library, plonk a chart control into your form, and set it's data source to be from your database; that's it.

The hard way:

The data in your database table is effectively an array of records. With an ADO.net data adapter, it is easy to iterate over database records as an actual typed array - just draw some boxes, lines or pie segments that represent whatever quantity of the records you want to chart.

You can also use a recordset object to "manually" query the table, but I find the data adapter objects generally more convenient to use.

[google] free .net charting library [smile]