Who is the oldest married male? State his job title.
Male refers to Gender = 'M'; married refers to MaritalStatus = 'M'; oldest refers to Min(BirthDate);
SELECT T2.FirstName, T2.LastName, T1.JobTitle FROM Employee AS T1 INNER JOIN Person AS T2 ON T1.BusinessEntityID = T2.BusinessEntityID WHERE T1.Gender = 'M' AND T1.MaritalStatus = 'M' ORDER BY T1.BirthDate LIMIT 1