Significance of order of columns in an indexhttps://www.dotnetzone.gr:443/cs/blogs/dotnetrules/archive/2013/11/17/significance-of-order-of-columns-in-an-index.aspxI have been delivering a certified course in MS SQL Server 2012 recently and I was asked a very interesting question "Does the order of the column in an index matter?" Let's give some basic definitions first and make some analogies. A single column indexelCommunityServer 2.1 SP3 (Build: 20423.1)