Hive SparkSql rank() over,dense_rank() over,row_number() over的使用与区别
一、建表语句createtablestudent(namestring,coursestring,scoreint)ROWFORMATDELIMITEDFIELDSTERMINATEDBY','STOREDASTEXTFILE二、测试数据lishi,Chinese,96wanger,English,71zhangsan,Chinese,92zhangsan,Math,86wangwu,Englis