Task: Text to Code
Input (English): Step 1: For each row in departments table, find the corresponding rows in employees table.
Step 2: find each value of employees's DEPARTMENT_ID in the results of step 1 along with the number of the corresponding rows to each value
Output (English): SELECT T1.DEPARTMENT_NAME , Count ( * ) FROM departments AS T1 JOIN employees AS T2 ON T1.DEPARTMENT_ID = T2.DEPARTMENT_ID GROUP BY T2.DEPARTMENT_ID