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CREATE TABLE
INSERT 0 7
| device_id | created_at | created_at |
|---|---|---|
| 1 | 2022-01-23 17:38:12.986 | 2022-01-23 17:39:12.986 |
| 1 | 2022-01-22 16:38:12.986 | 2022-01-22 16:39:12.986 |
| 2 | 2022-01-21 14:38:12.986 | 2022-01-21 14:39:12.986 |
| 3 | 2022-01-20 14:38:12.986 | null |
SELECT 4