DEP026
Published 20 November 2017
Three-part and four-part column references in SELECT list are deprecated
Three-part and four-part column references in SELECT list are deprecated – two-part names is the standard-compliant behavior.
Sometimes, when a table is referenced in another database or server, programmers believe that the two or three-part table name needs to be applied to the columns. This is unnecessary and meaningless. Just the table name is required for the columns.