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ETL (Software)
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ALSO CALLED: Data Extraction Software, Database Extraction Software, and Extract Transform Load
DEFINITION: In managing databases, extract, transform, load (ETL) refers to three separate functions combined into a single programming tool. First, the extract function reads data from a specified source database and extracts a desired subset of data. Next, the transform function works with the acquired
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ETL (SOFTWARE) DEFINITION (continued):
data - using rules or lookup tables, or creating combinations with other data - to convert it to the desired state. Finally, the load function is used to write the resulting data (either all of the subset or just the changes) to a target database, which may or may not previously exist. ETL can be used to acquire a temporary subset of data for reports or other purposes, or a more permanent data set may be acquired for other purposes such as: the population of a data mart or data
ETL (Software) definition sponsored by SearchDataManagement.com, powered by WhatIs.com an online computer dictionary
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