当ETL需要对这三个系统进行集成以获得对客户的全面视角时,这一过程需要复杂的匹配规则、名称/地址正常化与标准化。而ETL在处理过程中会定义一个关键数据标准,并在此基础上,制定相应的数据接口标准。 ETL过程在很大程度上受企业对源数据的理解程度的影响,也就是说从业务的角度看数据集成非常重要。一个优秀的ETL设计...
Extraction, transformation, and loading (ETL) processes are used to extract data from internal and external sources of an organization, transform these data, and load them into a data warehouse. Since ETL processes are complex and costly, it is important to reduce their development and maintenance...
Transformation With transformations, data loaded within the SAP NetWeaver BW system using the specified interfaces is transferred from a source format to a target format in the data warehouse layers. The transformation allows you to consolidate, clean up and integrate the data, thus synchronizing it ...
百度试题 题目ETL,全称为Extraction-Transformation-Loading,中文名为数据抽取、转换和加载。相关知识点: 试题来源: 解析 正确 反馈 收藏
An extraction, transformation and loading (ETL) designer module of a computerized financial system that is used to configure an ETL package for loading data elements from a financial table of a financial database into a reporter table in accordance with a predefined format. The ETL designer ...
抽取、转换和加载(ETL)4) extraction-transformation-loading 数据的抽取转换加载 1. It is an important issue how to manage extraction-transformation-loading of data. 将数据的抽取转换加载(ETL)过程和工作流技术结合起来,研究了ETL过程的工作流调度问题,设计了一种简单串行和稳定可靠的循环遍历算法。5...
更多“ETL,全称为Extraction-Transformation-Loading,中文名为数据抽取、转换和加载。()……”相关的问题 第1题 Kettle是一款开源的ETL工具() 是 否 点击查看答案 第2题 商业智能系统的主要功能包括数据仓库、数据 ETL,数据统计输出、分析()不属于数据 ETL 的服务内容。A、数据迁移B、数据同步C、数据挖掘D、...
2) extraction-transformation-loading 数据的抽取转换加载 1. It is an important issue how to manageextraction-transformation-loadingof data. 将数据的抽取转换加载(ETL)过程和工作流技术结合起来,研究了ETL过程的工作流调度问题,设计了一种简单串行和稳定可靠的循环遍历算法。
ETL stands for extraction, transformation, and loading, in other words, for the data warehouse (DW) backstage. The main focus of our exposition here is the practical application of the ETL process in real world cases with extra problems and strong requirements, particularly performance issues relat...
Whereas many believe that an ADMS can be created by simply exporting data from an operations system, experience in developing the Virginia ADMS illustrates that the creation of an effective ADMS requires careful attention to the extraction, transformation, and loading (ETL) process. This process ...