| id | name | age | experience |
|---|---|---|---|
| 1 | Alice | 30 | 8 |
| 2 | Bob | 28 | 6 |
| 3 | Charlie | 32 | 10 |
| 4 | David | 40 | 7 |
| 5 | Eva | 35 | 9 |
| id | name | age | experience |
|---|---|---|---|
| 1 | Frank | 31 | 5 |
| 2 | Grace | 29 | 4 |
| 3 | Heidi | 33 | 7 |
| 4 | Isaac | 42 | 6 |
| 5 | Judy | 34 | 5 |
| data_type_id | type_name |
|---|---|
| 1 | Demographics |
| 2 | Financial |
| 3 | Healthcare |
| 4 | Environmental |
| 5 | Transportation |
| job_id | economist_id | statistician_id | data_type_id |
|---|---|---|---|
| (→ Economists.id) | (→ Statisticians.id) | (→ DataTypes.data_type_id) | |
| 1 | 1 | None | 1 |
| 2 | 2 | 3 | 2 |
| 3 | None | 4 | 3 |
| 4 | 5 | None | 4 |
| 5 | None | 6 | 5 |
| skill_id | skill_name |
|---|---|
| 1 | R Programming |
| 2 | Python |
| 3 | SQL |
| 4 | Excel |
| 5 | Tableau |