Using the knowledge in computational language in SQL it is possible to write a code that  existing company database, the customers table contains.
SELECT FirstName,
   LastName,
   HireDate,
   (STRFTIME('%Y', 'now') - STRFTIME('%Y', HireDate))
     - (STRFTIME('%m-%d', 'now') < STRFTIME('%m-%d', HireDate))
     AS YearsWorked
FROM Employees
WHERE YearsWorked >= 15
ORDER BY LastName ASC
See more about SQL at brainly.com/question/13068613
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