SQL Subquery Exercises: Display the first and last name, salary, and department ID for those employees who earn less than the average salary, and also work at the department where the employee Laura is working as a first name holder
SQL SUBQUERY: Exercise-45 with Solution
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 Laura (first name) is employed. Return first name, last name, salary, and department ID.
Sample table: employees
SELECT first_name, last_name, salary, department_id FROM employees WHERE salary < (SELECT AVG(salary) FROM employees ) AND department_id = (SELECT department_id FROM employees WHERE first_name = 'Laura');
first_name last_name salary department_id Kevin Mourgos 5800.00 50 Julia Nayer 3200.00 50 Irene Mikkilineni 2700.00 50 James Landry 2400.00 50 Steven Markle 2200.00 50 Laura Bissot 3300.00 50 Mozhe Atkinson 2800.00 50 James Marlow 2500.00 50 TJ Olson 2100.00 50 Jason Mallin 3300.00 50 Michael Rogers 2900.00 50 Ki Gee 2400.00 50 Hazel Philtanker 2200.00 50 Renske Ladwig 3600.00 50 Stephen Stiles 3200.00 50 John Seo 2700.00 50 Joshua Patel 2500.00 50 Trenna Rajs 3500.00 50 Curtis Davies 3100.00 50 Randall Matos 2600.00 50 Peter Vargas 2500.00 50 Winston Taylor 3200.00 50 Jean Fleaur 3100.00 50 Martha Sullivan 2500.00 50 Girard Geoni 2800.00 50 Nandita Sarchand 4200.00 50 Alexis Bull 4100.00 50 Julia Dellinger 3400.00 50 Anthony Cabrio 3000.00 50 Kelly Chung 3800.00 50 Jennifer Dilly 3600.00 50 Timothy Gates 2900.00 50 Randall Perkins 2500.00 50 Sarah Bell 4000.00 50 Britney Everett 3900.00 50 Samuel McCain 3200.00 50 Vance Jones 2800.00 50 Alana Walsh 3100.00 50 Kevin Feeney 3000.00 50 Donald OConnell 2600.00 50 Douglas Grant 2600.00 50
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Previous: From the following table, write a SQL query to find those employees who earn less than the minimum salary of a department of ID 70. Return first name, last name, salary, and department ID.
Next: From the following tables, write a SQL query to find those employees whose department is located in the city 'London'. Return first name, last name, salary, and department ID.
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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.
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