SQL exercises on employee Database: List the name, id, hire_date, and salary of all the employees joined before 1 apr 91

SQL employee Database: Exercise-25 with Solution

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25. From the following table, write a SQL query to find those employees who joined before 1st April 1991. Return employee ID, employee name, hire date and salary.

Sample table: employees

Pictorial Presentation:

Sample Solution:

SELECT e.emp_id,
       e.emp_name,
       e.hire_date,
       e.salary
FROM employees e
WHERE hire_date <'1991-04-01';

Sample Output:

 emp_id | emp_name | hire_date  | salary
--------+----------+------------+---------
  63679 | SANDRINE | 1990-12-18 |  900.00
  64989 | ADELYN   | 1991-02-20 | 1700.00
  65271 | WADE     | 1991-02-22 | 1350.00
(3 rows)

Relational Algebra Expression:

Relational Algebra Tree:

Practice Online

Sample Database: employee

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