| id | name | experience | skills | grade |
|---|---|---|---|---|
| 1 | John Doe | 3 | Python, Java, C++ | Middle |
| 2 | Jane Smith | 6 | JavaScript, PHP, Ruby | High |
| id | name | experience | tools | grade |
|---|---|---|---|---|
| 1 | Alice Johnson | 4 | Excel, Tableau, R | Middle |
| 2 | Bob Brown | 7 | SQL, SAS, Python | Advanced |
| id | name | location | size |
|---|---|---|---|
| 1 | TechCorp | New York | Large |
| 2 | Startup Inc. | San Francisco | Small |
| id | description | startDate | endDate | companyId |
|---|---|---|---|---|
| (→ Companies.id) | ||||
| 1 | Web Application Development | 2021-08-01 | 2021-12-31 | 1 |
| 2 | Mobile App Design | 2021-09-01 | 2021-12-31 | 2 |
| developerId | projectId |
|---|---|
| (→ Software_Developers.id) | (→ Projects.id) |
| 1 | 1 |
| 2 | 2 |
| analystId | projectId |
|---|---|
| (→ Data_Analysts.id) | (→ Projects.id) |
| 1 | 1 |
| 2 | 2 |