title: How to convert a date of birth into an age and save it into a table?
body: <p>I am creating a online record for our family members.</p>
  
  <p>I have two tables Member and MemberDetails, and the BirthDate is inserted in the 'member' table. I want to calculate age using this BirthDate stored in table 'Member' and store it in table MemberDetails for each member under the column 'Age'.</p>