what is extraction transformation and loading quizlet

Once the data has been extracted, the next step of the ETL process involves transforming that data to meet the needs of your target application or system. Once you have connected to your desired sources of data, you can begin extracting the relevant information from them into a staging area for further processing. This may involve using various tools and technologies to connect to different sources of data, ranging from simple flat files on local servers to more complex databases hosted on remote servers.

The first step in an ETL process typically involves identifying and accessing the relevant source data. How Does ETL WorkĪn ETL workflow typically involves three main stages: extracting, transforming, and loading. By extracting and transforming data in a systematic way, organizations are able to make more informed decisions about how to use this information to drive their business forward. Overall, ETL is an important process that can help businesses gain valuable insights from their data. Some of these might include choosing which data sources to use and how best to access them, selecting which transformation operations will be most effective, and choosing the most appropriate data storage solution for the outputted data. There are many different factors that come into play when performing an ETL process. This typically involves extracting the data from its original source, manipulating it through various transformations or operations, and then loading it into another system where it can be analyzed and used for decision-making. What Is the Purpose of ETLĪt the core of ETL is the idea of moving data from one place to another in order to make it more usable.

What Does ETL Stand ForĮTL stands for extract, transform, and load which is a process used in data analysis to transform raw data into clean, usable information. It involves three distinct phases: extracting data from the source system where it is stored, transforming that data to meet the needs of the target system or application, and then loading the transformed data into that system or application. Extract, transform, and load, or ETL, is a process used to extract data from various sources and transform it into a format that can be loaded into a database or other system for analysis.ĮTL is a key component of many data processing pipelines.

What is extraction transformation and loading quizlet