How do i read from an SQL database and output the result to a bar on a chart, then repeat for the next line in the database and the next bar on the chart?
My situation is:
I have a database that is created when the user creates a new "event" (like a festival, concert etc). I also have a form that allows the user to input numbers of people in an out, which adds these to a table in the database. I have a column in the table that calculates the total in and total out for all the gates.
Now, my problem... I need to put these totals values to a bar chart. I need the program to add the total in value to the chart, then the total out to the chart in a different colour. This needs to be done every time the user adds a line to the database for a new bar in the chart. So for example 1am, 200in, 130 out. 2pm, 100 in, 70 out. 3pm, 100 in, 140 out.
And these will display on the chart for a 24 hour period. Can anyone help?
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