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SELECT regions.region_id
region_name, country_name
FROM regions
INNER JOIN countries
ON regions.region_id = countries.region_id;
Quiz question
3.
SELECT
first_name,
last_name,
employees.department_id,
departments.department_id,
department_name
FROM
employees
INNER JOIN
departments ON departments.department_id = employees.department_id
WHERE
employees.department_id IN (1 , 2, 3);
4.
SELECT
first_name,
last_name,
job_title,
department_name
FROM
employees.employee_id
INNER JOIN departments.department_id ON departments.department_id = employees.department_id
INNER JOIN jobs.job_id ON jobs.job_id = employees.job_id
WHERE
employees.department_id IN (1, 2, 3);
5.
SELECT
MIN(salary) AS m
FROM
employees;
|
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