This app is for scan barcodes and updates data for gas reading.
I have a “database” table that includes all the names referenced to the barcodes.
the other table is “Reading”, which records all the gas reading
I’m trying to create a slice that includes all the barcode that left to do (from the database table)
let say I got 50 readings from 55 (55 are the total), that means I got 5 barcodes left, now I want a slice
I had tried:
I hope I have made myself clear…
thanks in advance