SQL经典实例 英文版 SQL Cookbook

You'lllearnabout:Windowfunctions,arguablythemostsignificantenhancementtoSQLinthepastdecade.Ifyou'renotusingthese,you'remissingoutPowerful,database-specificfeaturessuchasSQLServer'sPIVOTandUNPIVOToperators,Oracle'sMODELclause,andPostgreSQL'sveryusefulGENERAT