In this article I'm going to explain the use of the analytic functions RANK, DENSE_RANK and ROW_NUMBER to rank the results of your query.
Crop diversification refers to the addition of new crops or cropping systems to agricultural production on a particular farm taking into account the different returns from value-added crops with complementary marketing opportunities. Major driving forces for crop diversification include: â¢ Increasing income on small farm holdings
When looking at world food production figures it is easy to underestimate the importance of vegetables in the diet, because many species are grown and consumed locally, and so do not make the list of 30-40 most widely grown crops.