name,email,department,salary,hire_date
Alice Smith,alice@example.com,ENG,75000,2023-01-15
Bob Jones,bob@example.com,SALES,-50000,2023-02-01
Charlie,charlie@bademail,MKTG,65000,2023-03-01
Diana Prince,diana@example.com,ENG,82000,2022-05-20
Eve Wilson,eve@example.com,HR,58000,2023-04-10
Frank Miller,frank@example.com,INVALID,70000,2023-01-25
Grace Lee,grace@example.com,SALES,0,2023-06-01
Henry Davis,henry@example.com,ENG,90000,invalid_date
Ivy Chen,ivy@example.com,MKTG,62000,2023-07-15
Jack Brown,jack@example.com,HR,55000,2023-08-01