hello, my name is Arwin, I want to retrieve data in my MySQL database, but the results are like that? how to take only the values at the "suhu" only? thank you
my Query
msg.topic = "SELECT suhu FROM ph ORDER BY timestamp DESC LIMIT 1";
i want the UI Text to be "Suhu : 0", is there any suggestion for me?
The first thing to do in a situation like this is to add a debug node to see what information is coming from the database node. Then you need to work out how to extract the particular data that you need.
Hover your mouse over the object and you will see some options.
Clicking on the >_ will copy the path to the item
payload[0].suho
which you can use to access that item
In particular, for a ui text node you can put in the Value Format field
{{msg.payload[0].suho}}
its work, but if I add the data "suhu" then the data in the UI Text will not update. How can I update the data?
if I have 2 data, how do I make the UI Text update automatically? does not change the payload [0].suhu to payload [1].suhu
Again the first thing to do is to send the data to a debug node and see what is there.
how do you get two outputs when you have a 'LIMIT 1' in your sql statement? Or have you changed the statement? Changing the SQL is important information to let us know
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