Finding someone's age in SQL

Question

In a SQL Server database, I record people\'s date of birth. Is there an straight-forward method of working out the person\'s age on a given date using SQL only?

Usi

Answer 1

This solution show how in one query without variables

SELECT DATEDIFF(YY, birthdate, GETDATE()) - CASE WHEN( (MONTH(birthdate)*100 + DAY(birthdate)) > (MONTH(GETDATE())*100 + DAY(GETDATE())) ) THEN 1 ELSE 0 END