Date Time on x-axis using JFreeChart

Question

I would like to create a graph using data from a database (Oracle). The dataset contains DateTimeStamp values and numeric values The DateTimeStamp values are for intervals of 15 minutes and usually extend for a period greater than one calendar day. The DateTimeStamp values need to be graphed against the X-axis and the data values (numeric) will be graphed against the Y-yxis. The x-axis major tic marks should be the calendar days. I have purchased the enterprise version of JFreeChart but the username password provided does not allow me to ask questions on their forum , and sending email to the owner results in no response.

Thanks for any help you can offer. A working code block/snippet would be ideal and much appreciated.

Answer 1

Look at JDBCXYDataset , which uses the query's ResultSetMetaData to recognize Types related to date and time. Complete examples are seen here and here .

As an aside, access to the support forum is free; just click the register link.