SQL Exercises: Count the number of salesmen registering orders for each day
SQL Aggregate Functions: Exercise-20 with Solution
Write a query that counts the number of salesmen with their order date and ID registering orders for each day.
Sample table: orders
SELECT ord_date,salesman_id,COUNT(*) FROM orders GROUP BY ord_date,salesman_id;
Output of the Query:
ord_date salesman_id count 2012-07-27 5001 1 2012-08-17 5007 1 2012-04-25 5001 1 2012-09-10 5002 1 2012-10-05 5002 1 2012-10-10 5003 1 2012-09-10 5005 1 2012-08-17 5003 1 2012-06-27 5002 1 2012-09-10 5001 1 2012-10-05 5001 1 2012-10-10 5006 1
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Previous: Write a SQL statement that count the number of salesmen for whom a city is specified. Note that there may be spaces or no spaces in the city column if no city is specified.
Next: Write a SQL query to calculate the average price of all the products.
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