Please help with the following queries. Rectify if they are wrong.
[Refer this link for the questions>>] My answers till now,(by the way I solved them but I am not sure if they are correct, so I wanted to get something like a model answer paper to compare and check.) Answer.2) select name from Artist A where exists(select name from album B where A.name=B.name) Answer.3)select A.name from Atist A, Track T, TrackList L where A.artistID=L.trackID and L.Tracknum=1 and T.name="Intro" Answer.4)select artist.name from Artist where artist.name="Mogwai" and weight>(select weight from Artist,SimilarArtist where Artist.artistID=SimilarArtist.artistID) Answer.5)select A.name from Album A,Tracklist L where L.tracknum>30 and L.albumID=A.albumID M not getting the other answers. So if nething wrong in the above pls rectify. :