etl wikipedia

Introduction to ETL technology: Introduction to ETL, data warehouse, and etl Data WarehouseETL is the abbreviation of Extract-Transform-Load. It is used to describe the process of extracting, transforming, and loading data from the source to the target. ETL is commonly used in data warehouses, but its objects are not l

Wikipedia Wikipedia updated its own logo, the new logo to downplay the imposition of three-dimensional, enhance the 3D effect of the ball. At the same time increase the font size of the word distance, and extend the design of several overall image of the effect. Last week, Wikipedia Wikipedia updated its logo, the new

ETL TL, short for extraction-transformation-loading. The Chinese name is data extraction, conversion, and loading. ETL tools include: owb (Oracle warehouse builder), Odi (Oracle data integrator), informatic powercenter, aicloudetl, datastage, repository explorer, beeload, kettle, dataspider ETL extracts data from distributed and heterogeneous data sources, suc

Wiki:url transcoding (->english) wiki, wikipedia, Wikipedia,1. Original URL: https://zh.wikipedia.org/wiki/-ji2. After copying the resulting encoded URL: Https://zh.wikipedia.org/wiki/%E7%B6%AD%E5%9F%BA1Using the source code provided by Microsoft, everything is displayed normally: Ppt,pdf1 iframesrc= ' https://view.officeapps.live.com/op/embed.aspx?src=https

As a data warehouse system, ETL is a key link. If it is big, ETL is a data integration solution. If it is small, it is a tool for data dumping. Recall that there have been a lot of data migration and transformation operations over the past few years. However, the work is basically a one-time job or a small amount of data. You can use access, DTS, or compile a small program on your own. However, in the data

ETL scheduling development (1) -- writing instructions, etl Scheduling Preface: During database operation and maintenance, files are often transferred between systems to perform operations such as data extraction, conversion, and integration. In addition, statistical scheduling is performed after data integration. Here, I will describe an ETL scheduling developed

ETL scheduling development (5) -- connect to the database to execute database command subroutines and etl Scheduling In ETL scheduling, you need to connect to the database to read and write data. The following subprograms use the input database connection string and database commands (or SQL) to perform the required operations: #!/usr/bin/bash#created by lubinsu

The main indexes of this series of articles are as follows: I. ETL Tool kettle Application Analysis Series I [Kettle Introduction] Ii. ETL Tool kettle Practical Application Analysis Series 2 [application scenarios and demo downloads] Iii. ETL Tool kettle Practical Application Analysis Series III [ETL background process

ETL (extract-transform-load abbreviation, that is, data extraction, transformation, loading process), for enterprise or industry applications, we often encounter a variety of data processing, conversion, migration, so understand and master the use of an ETL tool, essential, Here I introduce a I used in the work of 3 years of ETL tools kettle, the spirit of good t

Etl tool, kettle implementation loop, etl Tool kettle implementation Kettle is an open-source ETL Tool written in java. It can be run on Windows, Linux, and Unix. It does not need to be installed green, and data extraction is efficient and stable. Business Model: there is a large data storage table in the relational database, which is designed as a parity datab

During database management, extraction, conversion, and loading (ETL, extract, transform, and load) are three independent functions that constitute a simple editing task. First, read the data in the specified source database and extract the required sub-dataset. Then, the conversion function uses rules or drop-down lists to process the acquired data or create connections with other data, so that it can be converted to the desired state. Finally, we us

Reprinted ETL architect interview questions 1. What is a logical data mapping and what does it mean to the ETL team? What is Logical Data ing? What role does it play on the ETL project team? A: Logical Data Map) describes the data definition of the source system, the model of the target data warehouse, and instructions on operations and processing methods to conv

The existence of Wikipedia is a miracle In the past two years, the meaning of the word "feelings" may have been mutated in the hearts of the Chinese people, which is mostly attributed to some business structure in the marketing process for the once good words of the hostage. But if the words "feelings" and "Wikipedia" are linked together, perhaps people will still be convinced to Chongyong to the right, to

For the Data warehouse and ETL knowledge, I am basically a layman. Everything has to start from scratch, take a note, to facilitate the understanding of learning progress.First, let's take a look at the basic definition:Well, some people also called the ETL simple data extraction. At least before the study, the leader told me that you need to do a data extraction tool.In fact, extraction is the key part of

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The existence of Wikipedia is a miracleThese two years, " Feelings "The meaning of the two words may have been mutated in the hearts of the Chinese people, and this is mostly attributed to the hostage-taking of some business structures in the marketing process for this once good word." But if the words "feelings" and " wikipedia " are linked together, perhaps people will still be convinced to Chongyong to t

The exciting four years at WikipediaGuideI think I am a Wikipedia member of Odia. I have contributed Odia knowledge to many Wikipedia projects by writing articles and correcting document errors (this is the main language in Orissa, India), such as Wikipedia and Wikipedia, I also contributed to

ETL ConsiderationsAs a data warehouse system, ETL is the key link. Said Big, ETL is a data integration solution, said small, is to pour data tools. Recall the work over the years, the processing of data migration, conversion is really a lot of work. But those jobs are basically a one-time job or a small amount of data, using Access, DTS, or making a small program

Content growth in Wikipedia is slowing down, and the number of active editors that are already small is also declining. Jimmy Wales has called on editors to review more and more content, this further hinders content growth. However, the reduction of new content in Wikipedia does not mean that it is dead. Wikipedia has a large structured database, which is an undi

Random House, a German Publishing House, announced that it would publish the German version of Wikipedia as a book to satisfy readers who prefer to flip books rather than clicking the mouse. Editors will select 50000 of the most popular articles from the German version of Wikipedia and edit them into a 1000-page-thick book, which will be released in September this year. Wikipedia's initial mission was to r