I am super new to SQL and have been working on this query and can not seem to get it to work. I need to sum the categories (how many clients are in each country and how many clients each employee has). This is what I tried to do to get the total clients in each country:
COUNT(*) TotalCount,
country.id, country.country
FROM client
INNER JOIN country
ON client.country_id = country.id
GROUP BY country.id, country.country
These are my tables:
CREATE TABLE employee(
id INT AUTO_INCREMENT PRIMARY KEY,
employee VARCHAR(40)
);
CREATE TABLE country (
id INT AUTO_INCREMENT PRIMARY KEY,
country VARCHAR(40)
);
CREATE TABLE client(
id INT AUTO_INCREMENT NOT NULL PRIMARY KEY,
name VARCHAR(40),
email VARCHAR(40),
sold BOOLEAN,
date VARCHAR(40),
email_type_id INT,
employee_id INT,
country_id INT,
FOREIGN KEY(email_type_id) REFERENCES email_type(id),
FOREIGN KEY(employee_id) REFERENCES employee(id),
FOREIGN KEY(country_id) REFERENCES country(id)
);
Thank you so much!
how many clients are in each country
select country , count(*) from country inner join client on country.id=client.country_id
group by country
how many clients each employee has
Select employee , count(*) from employee inner join client on client.employee_id =employee.id group by employee