where else can i learn SQL from to get enough knowledge so tha i can write it in my CV that i know SQL?

Answer 1

edx,solo leaen, w3school and many more

Answer 2

have you tried any of those? i learn it from w3
is there any better?

Answer 3

I tried edx for cs50... its awesome and recently completed java from solo learn its good too...but at edx you can get lectures from universities like harvard, mit n ol with problem sets like there classroom programs so u will learn a lot there..