15. Employee Email Verification

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15. Employee Email Verification

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Problem

Table: Employees

+---------------+---------+
| Column Name   | Type    |
+---------------+---------+
| employee_id   | int     |
| name          | varchar |
| email         | varchar |
+---------------+---------+
employee_id is the primary key (column with unique values) for this table.
This table contains information about employees in a company. Some emails are invalid.

Problem Definition

Write a solution to identify the employees who have valid emails.

A valid email should have a username and a domain with the following rules:

.....

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