historizing backend : any way to save to a persistent database e.g. mySQL

[Jacky Bek]

HistorizingSetting.historizingBackend = UA_HistoryDataBackend_Memory(22, 200);

This is the example given in github.  The data is stored in memory.

If i want to send the information to a persistent database e.g. mySQL database, is it supported?

Thanks.

Jacky

[Juan Gonzalez Burgos]

Jacky,

The historizing backend provdes an API that you can use to implement connectivity with your preferred database, but you have to implement it yourself.

I have gone through it and created a higher level API for Qt C++ and implemented sqlite support. Maybe it is helpful for you:

https://github.com/juangburgos/QUaServer#Historizing

Best,

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[Jacky Bek]

Thanks.

I have successfully implemented the codes to write to MySQL database using MonitoredItems callback.