etl workflow

What is ETL? SDE: Source Dependent Extract SDE mappings -- extracts the data from the transactional Source System and loads into the data warehouse staging tables. SDE mappings are designed with respect to the source's unique data model. SDE _ * workflows have only the staging table, the workflow will load the data into the staging area tables. In the staging the tables will not have index. It always trunca

ETL is the process of data extraction (Extract), Transformation (Transform), loading (load). It is an important part of building data Warehouse. Data Warehouse is a theme-oriented, integrated, stable and constantly changing data collection to support the decision making process in the management. There may be a large number of noise data in the Data Warehouse system, and the main causes are: misuse of abbreviations, idioms, data entry errors, duplicat

ETL is an important part of Bi. Let's take a look at the definition in wiki: ETL is the abbreviation of extract-transform-load. It is the process of data extraction, conversion, and loading for filling and updating data warehouses. This is the data collection step before realizing business intelligence. After this step is completed, you can mine and analyze the data in the database. For

Label:At present, Teradata Data Warehouse ETL operation using ELT mode, because the loading is too heavy, the need to transfer the ETL pressure to a dedicated ETL server. For ETL tools, there are already mature commercial/open source tools in the market, such as Informatica's PowerCenter, IBM DataStage, and open source

Label: Pre-installation media preparation: Dbi-1.636.tar.gz Dbd-mysql-4.037.tar.gz Etl.tar Perl: First part MySQL database installation Links such as: http://jingyan.baidu.com/article/a378c9609eb652b3282830fd.html Part II PERL module installation 1) Check the current Perl version of the command:perl-v View installed perl module commands: Perldoc perllocal 2) DBI Module for dbi-1.636.tar.gz Method is the same as the DBD module 3) DBD module is dbd-mysql-4.037.tar.gz Tar xvzf dbd-mysql-4.037.tar

ETL is the process that the data of the business system is loaded into the data warehouse after being extracted and cleaned, the aim is to integrate the scattered, messy and standard data in the enterprise to provide the analysis basis for the decision of the enterprise. ETL is the most important aspect of BI project, usually the ETL will spend 1/3 of the whole

ETL is the process that the data of business system is pumped into the data warehouse after being cleaned and transformed, the purpose is to integrate the data of the enterprise in the scattered, messy and standard, and provide the analysis basis for the enterprise's decision. ETL is an important part of BI project. Typically, in BI projects, ETL spends at least

Tags: tar target manual format system Administrator tran complex data import convenience ETL is "Extract"," Transform","Load" Three words initials that is "extract ","convert " ," Loading ", but we are often referred to as data extraction for the day. 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 re

What is ETL? In the construction of a data warehouse, ETL runs throughout the project. It is the lifeline of the entire data warehouse, including data cleansing, integration, conversion, and loading. If the data warehouse is a building, ETL is the foundation of the building. The quality of ETL data extraction and i

ETL Tool Pentaho Kettle's transformation and job integration 1. Kettle 1.1. Introduction Kettle is an open-source etl Tool written in pure java. It extracts data efficiently and stably (data migration tool ). Kettle has two types of script files: transformation and job. transformation completes basic data conversion, and job controls the entire workflow.2. Integr

Create a custom Web site workflow Activity First, create a project that contains and tests the custom workflow activity. Create a Site Workflow custom activity Item 1. Display the New Project dialog box by pointing to New on the File menu and clicking New Project. 2. Expand the SharePoint node under Visual C #, and then click 2010. 3. In the Templates pane,

Turn: WF Workflow technology insider-call Workflow workflows (develop persistent workflows) through Web Services, wfworkflow Turn: http://www.cnblogs.com/carysun/archive/2009/01/11/receiveactivity.html If you have been responsible for developing an enterprise ERP system or an OA system, workflow is no stranger to you. A Workf