hello guys, i have 2 or more different data need to be inserted into 1 column in mysql database. Example:

name = john (1st column)
blood_type = B (2nd column)
children = mary,keith,alex (3rd column)

name = kenneth
blood_type =A
children = Oliver,Lich

in my program, i need to display/select name who had one of their children named alex. How do i call it??