Thanks to a tutor in you who is dealing in Tamizh. I firmly understood the reason for not group by expression error. Mainly because of the fundamentals of single row function & multi row function that you introduced in one of the previous session. The concept is applied here in select clause.
@dineshkumar-dg9ml3 жыл бұрын
Good videos, 👍 ..if any practice questions ,, pls suggest that as well