elt data warehouse

[Author]: KwuAutomated scripts to import hive Data Warehouse on a daily scheduleCreate shell scripts, create temporary tables, load data, and convert to a formal partition table:#!/bin/sh# upload logs to hdfsyesterday= ' date--date= ' 1 days ago ' +%y%m%d ' hive-e ' use stage;create table tracklog_tmp (DA Teday string,datetime string,ip string, Cookieid string,us

In the use of hive Data Warehouse large data query, there is a common problem is that the query is slow, can not give users a quick data analysis query. For decision-makers, how to get the data of user behavior analysis at the second level is a topic, The previous approac

=N'account_3',FILENAME=N'E:\account_3.ndf',SIZE=409600KB,FILEGROWTH=20480KB)TOFILEGROUP[account_3] GO16 2 Use ssis copy table sp_spaceusedaccountdetail; /*deleteEarnTimeisnotnull*/ /*23sec*/ deletefromaccountdetailwhereEarnTimeisnull /*26sec*/ deletefromaccountdetailwhereisnull(CommitStatus,0) /*12sec*/ deletefromaccountdetailwhereisnull(EarnStatus,0)=0 Partition the transmitted table /*createpartitionfunction*/ declare@bdatechar(8),@edatevarchar(8

uses Smalltalk to write their own desktop interface in Windows environment. It runs on the SGI Challenge 150s hardware as a large, cross-platform generator that uses two Sybase SQL Server 10 databases. The front-end is a metadata server that describes the enterprise's data and, with it, users can construct their query requests directly on the screen. It generates a C code base for database queries, has specific code for each integrated package, and s

data quality program As as, as staff productivity reporting. Production Staff Your production staff is most intimately involved in developing, producing and delivering Your? Products and services. The information that most directly affects production includes:pending orders, inventory (current and projected), changes In production requirements (especially special marketing) and personal productivity. Production is another group it frequently under

What is the difference between OLAP and OLTP and what is data warehouse?OLAP is usually called a data warehouse. However, data warehouses are only part of OLAP, not all.OLTP has more indexes than OLAP, and has high requirements on real-time performance, with many updates and

Warehouse. From here you can see that it has several features:1. The redundancy of the dimension tables is large, mainly because the dimensions are generally small (relative to the fact table), and the redundancy of the dimension tables can save a lot of space in the fact table. 2. Fact sheets are generally very large, and if queried in an ordinary way, the time to get the results generally is not acceptable to us. So it usually has to do some specia

", "email address occupied "));/*** Overwrite the method for adding data to the database of the parent class.* Perform md5 encryption on the user password first, and then call the parent class method to write the data to the database.*/Public function create ($ data ){$ Data = array_map ("addslashes", $

Using the Javadate class Data Warehouse dimension tableDate Category:, returns the number of milliseconds for a relative date. Accurate to milliseconds. However, the internationalization and sub-timezone display of dates is not supported.The date class began to evolve from the Java Development Package (JDK) 1.0, when it included only a few ways to get or set the various parts of a date

1. Environmental preparednessOs:centos 6.4Turn off SELinux and iptablesDeployment Puppet: 1.0 Puppet 3.7 Department Install puppet Source: http://yum.puppetlabs.com/puppetlabs-release-el-6.noarch.rpmComplete Puppetmaster/agent deployment, certificate signing ...PUPPETDB is a data warehouse that can query nodes, facter, report, catalog, resources and other information through restful HTTP.2. Installing PUPPE

then call the parent class method to write the data to the database.*/Public function create ($ data ){$ Data = array_map ("addslashes", $ data); // escape punctuation marks (single or double quotation marks) in the data$ Data ["

user password first, and then call the parent class method to write the data to the database. */ Public Function create ($ data ){ $ DATA = array_map ("addslashes", $ data); // escape punctuation marks (single or double quotation marks) in the data $

ALPHA Mid-High 5500.01 6500.00 PROJECT ALPHA Top 6500.01 99999999.99 Grid Low 0.01 3000.00 Grid MED 3000.01 6000.00 Grid High 6000.01 99999999.99 Table (v)-16-1 Each fragment has a start value and an ending value. The granularity of a fragment is the gap between this and the next paragraph. The granularity must be the minimum possible value for the metric, which is 0.01 in the exam

is classified as a fact, the attribute tree meets the following requirements: Each node corresponds to a data source mode attribute (simple or composite attribute ). Root corresponds to the identifier of the F object. For each node v, all subsequent attributes corresponding to V are determined by the function. 1.1.3 trim and port the attribute tree 1.1.4 define dimension 1.1.5 define measurement 1.1.6 generate fact Mo

Before entering php data into the database, clear the phpintval and mysql int values. For more information, see. Php saves data to mysql We plan to clean up data before warehouse receiving at the dao layer, such as varchar trim and int for intval. One day, I suddenly remembered that the value range of php intval is the

Tags: BSP OCA load nload script server sys har HiveFirst, install and use MARIADB as the storage database for Ambari, Hive, Hue. Yum Install mariadb-server mariadb Start, view status, check if MARIADB is installed successfully Systemctl start mariadb systemctl status mariadb Second, the configuration mariadb 1, first stop the operation of the MARIADB service Systemctl Stop MARIADB 2, edit/etc/my.cnf under the [Mysqld] section, add the following lines of line configuration: Transaction-isolation

business dimension information for integrated integration, this situation is more appropriate for generating surrogate keys to master keys. Summary The construction of the dimension table seems relatively simple, in most cases the business library will be directly, but in addition to the different levels of the dimension of Redundancy (Star model), but also need to grasp the details of the following dimensions of the construction of attention, after all, the dimension of errors will

Big Data Current major trends (self-understanding)file system, deployment, various streams and open source tools-------ETL Development (BI project)----Data statistical analysis------data Mining, machine learning Image from the analysisfirst, about KAKFA Kafka relatedKafka, a distributed messaging system developed by LinkedIn, is written in Scala and is widely use

] +) + $/", $ email )){Echo json_encode (array ('res '=>-1, 'msg' => 'your mailbox format is incorrect '); exit;}$ Add_day = date ("YmdHis ");// The following is the warehouse receiving operation$ SQL = "insert into tb_register set username = '{$ name}', ages = '{$ ages}', password = '{$ pass }', address = '{$ addr}', email = '{$ email}', add_day = '{$ add_day }'";Mysqli_query ($ conn, $ SQL );Echo json_encode (array ('res '=> 1, 'msg' => 'congratulat

Detailed explanation of special character processing during MySQL data warehouse receiving In a string, if a sequence has a special meaning, each sequence starts with a backslash ("") and is called an escape character. MySQL recognizes the following escape characters: 0An ASCII 0 (NUL) character.'It is a string of 39 ASCII single quotes."An ASCII 34 double quotation mark ("") character.An ASCII 8 return cha