There aren’t many Node-Red users here, and this is a bit of a specialist question anyway.
It’s a very long time since I’ve done anything with MySQL, and that was before I discovered Node-Red.
I think you’re more likely to work-out a solution by googling for answers about Node-Red and MySQL.
Actually, from your flow it’s not possible to tell where your data is coming from and what format it’s in.
The input into the Insert_Func node appears to have two connectors going into it, but it’s a bit hard to tell. Node-Red works as a sequential processing engine, so feeding two values into a node will result in them being treated as separate events. This means they won’t get written into the same record of your database. Unless of course you can store a pointer to the record and update the second field of the database record with the second value as a separate operation.
If you want to feed a single payload into a node with multiple values then it needs to be an array, or separate values on different elements of the payload.
Some of the Node-Red help files have examples of this, and there are some good tutorials out there.
If your values are arriving at different times then you may need to store one as a variable, then retrieve and process it when your other value arrives.
Sorry I can’t be more specific, but without knowing more about your data sources and what you’re trying to achieve it’s difficult to advise.