PostgreSQL Aggregate Functions and Group By: Find the minimum salary paid to the employee

3. Write a query to get the minimum salary from employees table.

Sample Solution:

Code:

SELECT MIN(salary) 
FROM employees;

Sample table: employees

Output:

pg_exercises=# SELECT MIN(salary)
pg_exercises-# FROM employees;
   min
---------
 2100.00
(1 row)

Relational Algebra Expression:

Relational Algebra Tree:

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