I have a table inside mysql that contains a set of values separated by commas

For example

ID FRIENDids
1 3,5,7,2
2 18,20,40,33
3 22,12,421,22

Now is there any way of using a select statement to pic out the row that contains the value 5 for example?

I know the comma separated values screws things up, but there might be a way to still do this?

Thanks!