Question

I have a table which has 3 columns. Name,DateOfBirth, DateDeceded. The fields DateOfBirth and DateDeceded have the data type DATE.

Now when i do a Select * from TableName. I want to display the Name, date of birth, date deceded and the number of years the person lived (DateDeceded – DateOfBirth).

How do i write the SQL Select statement to include the NumberOfYearsLived field ?

Answer 1

Try:

SELECT Name,
       DateOfBirth,
       DateDeceded,
       YEAR(DateDeceded) - YEAR(DateOfBirth) AS NumberOfYearsLived
  FROM TableName

Edit: you might want to try this instead. It might be more accurate.

SELECT Name,
       DateOfBirth,
       DateDeceded,
       TIMESTAMPDIFF(YEAR, DateDeceded, DateofBirth) AS NumberOfYearsLived
  FROM TableName

http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_timestampdiff