PPT Slide
Resenje za ovaj problem je da kreiramo indeks.
Indeks je uredjena lista jedne ili vise kolona.
An index is an ordered list of all the values that reside in a group of one or more columns at a given time.
Indeksi znatno ubrzavaju izvrsavanje upita.
Such a list makes queries that test the values in those columns vastly more efficient.