Hires per year

SQLMedium10 min

Your task

Count how many people were hired in each calendar year. Return year and hires, earliest year first.

Tables

department
idINTEGERnameTEXT
1Engineering
2Sales
3Design
4Research
employee
idINTEGERnameTEXTsalaryINTEGERdepartment_idINTEGERmanager_idINTEGERhired_onTEXT
1Ada1800001NULL2021-03-01
2Grace165000112022-06-15
3Linus140000112023-01-09
4Mel1200002NULL2020-11-20
5Kay120000242023-04-02
6IvanNULL242024-02-17
More rows not shown