t_first_appearance: 21
This data as json
| rowid | record_key | first_sequence | first_source_file | first_file_type | total_appearances | first_seen_seq | last_seen_seq |
|---|---|---|---|---|---|---|---|
| 21 | 0|349157C48D|349157C48D|349157C48D | 1 | AbsenteeRegister_2514_122192.csv | absentee_register | 76 | 1 | 76 |