Data Units In the order of granularity - Hive data is organized into: 数据库.表.分区.桶 Databases: Namespaces that separate tables and other data units from naming confliction. Tables: Homogeneous units of data which have the same schema. An example of a ta
package com.example.administrator.filemanager.utils;import java.text.DecimalFormat;import java.text.SimpleDateFormat;import java.util.Date;/** * Created by Administrator on 2016/12/29. */public class CommonUtils { //DecimalFormat:用于格式化十进制的数字 pr