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Consider the following SQL statement:SELECT employee_id FROM employeesUNIONSELECT employee_id FROM former_employees;What does this statement do

Question

Consider the following SQL statement:SELECT employee_id FROM employeesUNIONSELECT employee_id FROM former_employees;What does this statement do
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Solution 1

This SQL statement is combining the results of two select queries using the UNION operator.

Here's a step-by-step breakdown:

  1. SELECT employee_id FROM employees: This part of the statement selects the employee_id from the employees table. It will return a list of all current employee IDs.

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Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
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