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Data Validation Testing: Techniques, Examples, & Tools

Monte Carlo

The Definitive Guide to Data Validation Testing Data validation testing ensures your data maintains its quality and integrity as it is transformed and moved from its source to its target destination. It’s also important to understand the limitations of data validation testing.

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From Zero to ETL Hero-A-Z Guide to Become an ETL Developer

ProjectPro

Data Integration and Transformation, A good understanding of various data integration and transformation techniques, like normalization, data cleansing, data validation, and data mapping, is necessary to become an ETL developer. Extract, transform, and load data into a target system.

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Mastering Data Migrations: A Comprehensive Guide

Monte Carlo

A data migration is the process where old datasets, perhaps resting in outdated systems, are transferred to newer, more efficient ones. Sure, you’re moving data from point A to point B, but the reality is far more nuanced. You have to ensure that data remains intact and consistent during the migration process.

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Moving Past ETL and ELT: Understanding the EtLT Approach

Ascend.io

Performance: Because the data is transformed and normalized before it is loaded , data warehouse engines can leverage the predefined schema structure to tune the use of compute resources with sophisticated indexing functions, and quickly respond to complex analytical queries from business analysts and reports.

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What Is Data Wrangling? Examples, Benefits, Skills and Tools

Knowledge Hut

To excel in this domain, individuals should possess the following skills: Data Transformation: The ability to perform various data transformations, such as merging, ordering, and aggregating, to prepare data for analysis. What are the six steps of data wrangling? What is data wrangling vs data cleaning?

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Data Quality Testing: Why to Test, What to Test, and 5 Useful Tools

Databand.ai

Deequ Deequ, an open-source library created by Amazon Web Services (AWS), enables testing the completeness, consistency, and accuracy of large-scale datasets using declarative constraints expressed in SQL-like syntax. Learn more in our detailed guide to data quality framework Better data observability equals better data reliability.

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What is an ETL Pipeline? Types, Benefits, Tools & Use Case

Knowledge Hut

Identify source systems and potential problems such as data quality, data volume, or compatibility issues. Step 2: Extract data: extracts the necessary data from the source system. This API may include using SQL queries or other data mining tools. It supports various data sources and formats.