---
title: ETL Tools and Related Services
description: Extract, Transform and Load (ETL) is an important part of computing these days, especially in data warehousing as it extracts data from homogeneous or heterogeneous data sources and transforms it for storage in the proper format or structure for the purposes of querying and analysis
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# ETL Tools and Related Services
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Extract, Transform and Load (ETL) is an important part of computing these days, especially in data warehousing as it extracts data from homogeneous or heterogeneous data sources and transforms it for storage in the proper format or structure for the purposes of querying and analysis. It is important to note that the acronym ETL is too simplistic for the process as it involves so much more than the three defined steps. Let us look at some of the basics of ETL in Data Warehousing.
**Extraction of data**
During the process of extraction, the desired data is noted and extracted from a variety of sources, including database systems and applications. Sometimes, quite a bit of extra data needs to be extracted as it is not always possible to identify the subset of interest. The size of the extracted data varies from a few kilobytes to hundreds of gigabytes. Not only this, but the time delta between the between two (logically) identical extractions: the time span may vary between days/hours and minutes to near real-time.
**Transporting the data**
After extracting the data, the next challenge is to physically transport it to the target system or sometimes, an intermediate system for further processing. Many long-time users of Oracle database are experts in programming complex data transformation logic using PL/SQL.
**ETL tools for data warehouses**
An ETL tool is one of the most important and difficult portions of a data warehouse project. A number of data warehousing projects use ETL tools to manage the process. These days ETL tools are used by a variety of professionals ranging from students in computer science looking to quickly import large data sets to database architects in charge of company account management. Quite commonly, ETL tools contain a GUI that helps users to transform data conveniently, using a visual data mapper, as opposed to writing large programs to parse files and modify data types.
**A few of the most popular ETL tools are**
- Microsoft - SQL Server Integration Services
- Informatica - Power Center
- IBM - Websphere DataStage (Formerly known as Ascential DataStage)
- SAP - BusinessObjects Data Integrator
- IBM - Cognos Data Manager (Formerly known as Cognos DecisionStream)
- Oracle - Data Integrator (Formerly known as Synopsis Data Conductor)
- Scriptella
- KETL
- Pentaho Data Integration (Kettle)
e-Zest has helped many enterprises to manage their data warehousing projects by providing ETL capabilities and using their inherent database abilities. To know more about the ETL tools, contact our experts today at [info@e-zest.com](mailto:info@e-zest.com) and understand how to tap this opportunity to grow your business.
## Other related services
[ERP](https://www.e-zest.com/erp)
[ERP for Pharmaceuticals Industry](https://www.e-zest.com/erp-pharmaceuticals/)
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