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My code has been drawing diagrams. I’m wondering how that can be called the following statement 10s sql queries to add new data to programs like online. I have the files:
1 / Data_Update.php – PHP to return JSON Data Service
2 / Dso_Chart_Update.php – Fetch Data and render Chart
3 / Chart_Update.php – HTML page called 2 files on.
I want to fill online chart by recalling Data_Update.php files for new data and adding this data to have to draw additional datapoint. Can you help me ?

I did refer to the link: http://jsfiddle.net/canvasjs/qajfpzeL/
I find the program file recall jsonData1.json after 2s. But this jsonData1.json update file data?
Sorry my english is not good.