Query with multiple values in a column

Question

I have a table like:

id     name            children
1      Roberto         Michael,Dia
2      Maria           John,Alex
3      Mary            Alexandre,Dia         


        

Answer 1

You should split the data into two tables.

the first would look like this

ID    Name
1     Roberto
2     Maria
3     Mary

And the second like this

ParentId     child
1            Michael
1            Dia
2            John
2            Alex

and so on.

then you could do the query you want without having to worry about like and your data is much more useable