Customizing code for insert ,update,select ,delete

Hello friends,
              
          I am doing a project that is depend with many many tables with insert update,select ,delete.I dont want to write code for each and every insertion seprately. There is a one insertion,updation,deletion  statement   for all tables . please help me  is there any example articles available for this task. and i am doing with 3 tier architechture.so i want to minimize the coding concept and increase logical concepts