| meter | id | reading | previous_reading | delta | decision |
|---|---|---|---|---|---|
| A | 1 | 1000 | NULL | NULL | baseline |
| A | 2 | 1040 | 1000 | 40 | ok |
| A | 3 | 1100 | 1040 | 60 | ok |
| A | 4 | 10 | 1100 | -1090 | review_reset |
| B | 5 | 500 | NULL | NULL | baseline |
| B | 6 | 560 | 500 | 60 | ok |
| meter | id | reading | previous_reading | delta |
|---|---|---|---|---|
| A | 2 | 1040 | 1000 | 40 |
| A | 3 | 1100 | 1040 | 60 |
| A | 4 | 10 | 1100 | -1090 |
| meter | id | reading | previous_reading |
|---|---|---|---|
| A | 2 | 1040 | NULL |
| A | 3 | 1100 | 1040 |
| A | 4 | 10 | 1100 |
Это сохранённый результат PHP CLI и MySQL на учебных данных, не интерактивная форма.