Returns the count of non-NULL rows.
Syntax
COUNT(expr)Example
Enter values below to update the example in real time.
department_id→headcount→employees→SELECT department_id, COUNT(*) AS headcount
FROM employees
GROUP BY department_id;
Returns the count of non-NULL rows.
COUNT(expr)Enter values below to update the example in real time.
department_id→headcount→employees→SELECT department_id, COUNT(*) AS headcount
FROM employees
GROUP BY department_id;