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K.E.T.T.L.E (Kettle ETTL Environment) is a meta-data driven ETTL tool. (ETTL: Extraction, Transformation, Transportation & Loading) This means that no code has to be written to perform complex data transformations. Environment means that it is possible to create plugins to do custom ... [More] transformations or access proprietary data sources. Kettle is released under the Apache License v2.0 since version 4.3.0. Kettle moved to GitHub at the beginning of 2014: http://github.com/pentaho/pentaho-kettle This move could lead to strange results in the Ohloh metrics. [Less]

Utility to compare data between homogeneous or heterogeneous environments to ensure source and target tables match. The Data Validation Tool is an open sourced Python CLI tool based on the Ibis framework that compares heterogeneous data source tables with multi-leveled validation functions. ... [More] Data validation is a critical step in a data warehouse, database, or data lake migration project where data from both the source and the target tables are compared to ensure they are matched and correct after each migration step (e.g. data and schema migration, SQL script translation, ETL migration, etc.). The Data Validation Tool (DVT) provides an automated and repeatable solution to perform this task. [Less]