missing-data

I have a system that stores the data only when they are changed. So, the dataset looks like below. data_type_id data_value inserted_at 2 240 2022-01-19 17:20:52 1 30 2022-01-19 17:20:47 2 239 2022-01-19 17:20:42 1 29 2022-01-19 17:20:42 My data…