SQL Exercise: List the employees in given department, joined after 91

Last update on January 31 2025 10:49:20 (UTC/GMT +8 hours)

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65. From the following table, write a SQL query to find those employees who joined after 1991, excluding MARKER and ADELYN in the departments PRODUCTION or AUDIT. Return employee name.

Pictorial Presentation:

Sample table: employees

Sample table: department

Sample Solution:

SELECT e.emp_name
FROM employees e,
     department d
WHERE e.dep_id = d.dep_id
  AND d.dep_name IN ('PRODUCTION',
                     'AUDIT')
    AND e.emp_name NOT IN ('MARKER',
                         'ADELYN')
  AND to_char(hire_date,'YYYY') >'1991';

Sample Output:

 emp_name
----------
 ADNRES
 SCARLET
(2 rows)

Explanation:

The said query in SQL that retrieves the names of employees who belong to the "PRODUCTION" or "AUDIT" departments, have a salary within the range of their grade, were not hired before 1991, and have names other than "MARKER" and "ADELYN" from the 'employees', 'department' tables.

The WHERE clause first joins the 'employees' and 'department' tables based on the department ID column.

It then retrieve employees who belong to the departments named "PRODUCTION" or "AUDIT"

The WHERE clause then excludes employees with the names "MARKER" and "ADELYN" and includes only those employees who were hired after 1991 from the results.

Practice Online

Sample Database: employee

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