SQL Exercise: List all the employees joined on 1st may 91

SQL employee Database: Exercise-27 with Solution

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27. From the following table, write a SQL query to find the employees who joined on the 1st of May 1991. Return complete information about the employees.

Sample table: employees

Pictorial Presentation:

Sample Solution:

SELECT *
FROM employees
WHERE hire_date = '1991-05-01';

Sample Output:

 emp_id | emp_name | job_name | manager_id | hire_date  | salary  | commission | dep_id
--------+----------+----------+------------+------------+---------+------------+--------
  66928 | BLAZE    | MANAGER  |      68319 | 1991-05-01 | 2750.00 |            |   3001
(1 row)

Explanation:

The said query in SQL that returns a list of all employees who were hired on May 1st, 1991, along with all of their information from the 'employees' table.

The WHERE clause filters the results to only include employees who were hired on May 1st, 1991.

Relational Algebra Expression:

Relational Algebra Tree:

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Sample Database: employee

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