SQL Subquery Exercises: Display the first and last name, salary and department ID for those employees whose department is located in the city London
SQL SUBQUERY: Exercise-46 with Solution
From the following tables, write a SQL query to find all employees whose department is located in London. Return first name, last name, salary, and department ID.
Sample table: employees
Sample table: departments
Sample table: locations
Sample Solution:
SELECT first_name, last_name, salary, department_id
FROM employees
WHERE department_id IN
(SELECT department_id
FROM departments
WHERE location_id =
(SELECT location_id
FROM locations
WHERE city = 'London'));
Sample Output:
first_name last_name salary department_id Susan Mavris 6500.00 40
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Previous: From the following table, write a SQL query to find those employees who earn less than the average salary, and work at the department where the employee 'Laura' (first name) works. Return first name, last name, salary, and department ID.
Next: From the following tables, write a SQL query to find the city of the employee of ID 134. Return city.
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SQL: Tips of the Day
"where 1=1" statement?
It's usually when folks build up SQL statements.
When you add and value = "Toyota" you don't have to worry about whether there is a condition before or just WHERE.
Ref: https://bit.ly/3cayyhJ
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