MySQL Subquery Exercises: Find the name and salary of the employees who have a higher salary than the employee whose last_name='Bull'
MySQL Subquery: Exercise-1 with Solution
Write a MySQL query to find the name (first_name, last_name) and the salary of the employees who have a higher salary than the employee whose last_name='Bull'.
Sample table: employees
+-------------+-------------+-------------+----------+--------------------+------------+------------+----------+----------------+------------+---------------+ | EMPLOYEE_ID | FIRST_NAME | LAST_NAME | EMAIL | PHONE_NUMBER | HIRE_DATE | JOB_ID | SALARY | COMMISSION_PCT | MANAGER_ID | DEPARTMENT_ID | +-------------+-------------+-------------+----------+--------------------+------------+------------+----------+----------------+------------+---------------+ | 100 | Steven | King | SKING | 515.123.4567 | 1987-06-17 | AD_PRES | 24000.00 | 0.00 | 0 | 90 | | 101 | Neena | Kochhar | NKOCHHAR | 515.123.4568 | 1987-06-18 | AD_VP | 17000.00 | 0.00 | 100 | 90 | | 102 | Lex | De Haan | LDEHAAN | 515.123.4569 | 1987-06-19 | AD_VP | 17000.00 | 0.00 | 100 | 90 | | 103 | Alexander | Hunold | AHUNOLD | 590.423.4567 | 1987-06-20 | IT_PROG | 9000.00 | 0.00 | 102 | 60 | | 104 | Bruce | Ernst | BERNST | 590.423.4568 | 1987-06-21 | IT_PROG | 6000.00 | 0.00 | 103 | 60 | | 105 | David | Austin | DAUSTIN | 590.423.4569 | 1987-06-22 | IT_PROG | 4800.00 | 0.00 | 103 | 60 | | 106 | Valli | Pataballa | VPATABAL | 590.423.4560 | 1987-06-23 | IT_PROG | 4800.00 | 0.00 | 103 | 60 | | 107 | Diana | Lorentz | DLORENTZ | 590.423.5567 | 1987-06-24 | IT_PROG | 4200.00 | 0.00 | 103 | 60 | | 108 | Nancy | Greenberg | NGREENBE | 515.124.4569 | 1987-06-25 | FI_MGR | 12000.00 | 0.00 | 101 | 100 | ......... | 206 | William | Gietz | WGIETZ | 515.123.8181 | 1987-10-01 | AC_ACCOUNT | 8300.00 | 0.00 | 205 | 110 | +-------------+-------------+-------------+----------+--------------------+------------+------------+----------+----------------+------------+---------------+
Code:
-- Selecting the first name, last name, and salary of employees whose salary is higher than that of the employee with the last name 'Bull'
SELECT FIRST_NAME, LAST_NAME, SALARY
-- Selecting data from the employees table
FROM employees
-- Filtering the result set to include only employees whose salary is higher than the salary of the employee with the last name 'Bull'
WHERE SALARY >
-- Subquery to fetch the salary of the employee with the last name 'Bull'
(SELECT salary FROM employees WHERE last_name = 'Bull');
Explanation :
- This MySQL code selects the first name, last name, and salary of employees from a table named "employees".
- It filters the results to only include employees whose salary is greater than the salary of the employee with the last name 'Bull'.
- This is achieved by using a subquery to fetch the salary of the employee with the last name 'Bull', and then comparing it with the salaries of other employees in the outer query.
MySQL Subquery Syntax :
- The subquery (inner query) executes once before the main query (outer query) executes.
- The main query (outer query) use the subquery result.
Here the where comparison operator uses the '>' operator.
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Structure of 'hr' database :
MySQL Code Editor:
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