a description of the settings that are supported by the Runtime column extension project level, and how to create a schema file. Next will be based on years of business Intelligence project experience, virtual out of the typical RCP use scenario, step-by-step implementation of RCP in Infosphere DataStage use, give each detail, including the design of the job, each phase of the parameter settings, detailing how RCP is in the ETL to reuse Dat Astage op
ETL is responsible for the distribution, heterogeneous data sources such as relational data, flat data files, such as the extraction of the temporary middle tier after the cleaning, transformation, integration, and finally loaded into the data warehouse or data mart, to become the basis of online analytical processing, data mining.
If the frequency of data conversion or not high requirements can be manually implemented
1, the definition of ETLETL is "Extract"," Transform","Load" the initials of three words namely "extract "," Conversion "," Loading ", but we are often referred to as the daily data extraction. ETL is the core and soul of BI/DW (Business intelligence/Data Warehouse), integrating and improving the value of data according to the unified Rules , is responsible for the completion of data from the data source to the target data Warehouse conversion proces
required to handle the second type of modification
Mini Dimension (minidimension):
Extract a few fields from a common large dimension to form a small field dimension that can be used in a query with a field in a mini dimension
This design significantly improves query efficiency
type of fact:
Granularity fact table (additive Fact)
Cycle Snapshot fact table (semi-additive Fact)
Aggregation Snapshot fact table (non-additive Fact)
Non-factual fact table (factless Fact table)
Granularity fact table
1, Ali Open source software: datax
Datax is a heterogeneous data source offline Synchronization tool that is dedicated to achieving stable and efficient data synchronization between heterogeneous data sources including relational databases (MySQL, Oracle, etc.), HDFS, Hive, ODPS, HBase, FTP, and more. (Excerpt from Wikipedia)
2. Apache Open source software: Sqoop
Sqoop (pronunciation: skup) is an open source tool that is used primarily in Hadoop (Hive) and traditional databases (MySQL, PostgreSQ
Label: DB-ETL-DW-OLAP-DM-BI Relationship Structure diagram Here are a few words about some of their concepts: (1)db/database/Database -This is the OLTP database, the online things database, used to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the state, will not appea
Label:DB, ETL, DW, OLAP, DM, BI relationship structure diagram Here are a few words about some of their concepts: (1)db/database/Database -This is the OLTP database, the online things database, used to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the state, will not
In the data warehouse project, ETL is undoubtedly the most tedious, time-consuming, and unstable. If the data source and target are both oracle and meet certain conditions, you can use
In the data warehouse project, ETL is undoubtedly the most tedious, time-consuming, and unstable. If the data source and target are both oracle and meet certain conditions, you can use
In the data warehouse project,
Note: to learn this article, you need to build on the basic understanding of integration services. If you do not have any knowledge, please refer to step by step to learn Bi (1)-Understanding integration services
Target: Import a text file to the execl file through the ETL project.
Steps:
1. Create a is project.
2. Double-click the package. dtsx file in the "SSIS packages" folder (this file is the package file) to go to the control flow working direc
Label:The first knowledge Talend, the feeling function is very powerful, can synchronize many kinds of databases, simultaneously can clean, the filter, the Java Code processing data, the data import and export.Talend is an open source software for ETL (data extraction extract, transfer transform, load load) for the data integration tools market. Talend provides a new vision for ETL services with its dual mo
Tags: show roc test mina test Data date () solution INF InsertScene: An SSIS ETL package that pulls data from a SQL Server source to a MySQL target table needs to be solved by a simple data flow component, but SSIS 2014 does not support the use of ADO in Data flow Connection as MySQL desitination, the runtime will error (do not use the source connection), replaced by ODBC connection can be successful, but the load speed is too slow. Insert the 260908
Label:DB, ETL, DW, OLAP, DM, BI relationship structure diagram Here are a few words about some of their concepts: (1)db/database/Database -This is the OLTP database, the online things database, used to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the state, will not ap
DB, ETL, DW, OLAP, DM, BI relationship structure diagramHere are a few words about some of their concepts:(1)db/database/Database -This is the OLTP database, the online things database, used to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the state, will not appear in
See you share a lot of Hadoop related content, I introduce you to an ETL tool--kettle.Kettle is an ETL tool of Pentaho company Open source, like Hadoop, is also Java implementation, the purpose is to do data integration when the data extraction (Extract), conversion (Transformat), load (loading) work. There are two script files in Kettle, transformation and job,transformation complete the fundamental transf
Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
Public Class Variables
Dim ParentComponent As ScriptComponent
Public Sub New (ByVal Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
10) Open the "target" Data Stream
Create a ing
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Different map service platforms have diverse requirements on map file formats, and files used by ArcGIS are difficult to be used on other platforms, therefore, a format conversion service is required to overcome the trouble of using different platforms. The following uses the conversion from TIFF format to geotiff format as an example.First, you need to prepare several items:1. Make sure that ArcGIS data interoperability for desktop is installed.2. Check data interoperability in the extended mod
This section describes how ETL (data extraction, loading, and conversion) of my game transaction data analysis project is implemented.Let's talk about the source system first. Because the server of our transaction master station is not hosted in the company, we cannot directly extract data from the source system. As a matter of fact, we already have a simple data analysis system. We don't have to worry about this. We did not use the sqlserver2005 Bi p
Label: Use strong data on time database to Apply Oracle technology Incremental extraction incremental extraction only extracts new or modified data from the table to be extracted from the database since the last extraction. During ETL usage. Incremental extraction is more widely used than full extraction. How to capture changed data is the key to incremental extraction. There are generally two requirements for the capture method: accuracy, which can
Label:Reprinted from: http://www.cnblogs.com/ycdx2001/p/4538750.html -------------- In the leader said the urine is not wet and the beer story, here see the original text. (1) db/database/Database --This refers to the OLTP database, the online things database, to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the
ETL scheduling to read and write data information, you need to connect to the database, the following sub-program through the incoming database connection string and Database command (or SQL) to run the required operations:#!/usr/bin/bash#created by Lubinsu#2014source ~/.bash_profilevalues= ' sqlplus-s The parameters of the parameter are: Database connection string, Database command (or SQL statement)ETL Sc
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