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

ProjectPro

ETL Developer Roles and Responsibilities Below are the roles and responsibilities of an ETL developer: Extracting data from various sources such as databases, flat files, and APIs. Data Warehousing Knowledge of data cubes, dimensional modeling, and data marts is required.

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What is Data Extraction? Examples, Tools & Techniques

Knowledge Hut

Whether it's aggregating customer interactions, analyzing historical sales trends, or processing real-time sensor data, data extraction initiates the process. Utilizes structured data or datasets that may have already undergone extraction and preparation. Primary Focus Structuring and preparing data for further analysis.

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Data Lake Explained: A Comprehensive Guide to Its Architecture and Use Cases

AltexSoft

For example, it might be set to run nightly or weekly, transferring large chunks of data at a time. Tools often used for batch ingestion include Apache Nifi, Flume, and traditional ETL tools like Talend and Microsoft SSIS. Real-time ingestion immediately brings data into the data lake as it is generated.

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What is ELT (Extract, Load, Transform)? A Beginner’s Guide [SQ]

Databand.ai

However, ETL can be a better choice in scenarios where data quality and consistency are paramount, as the transformation process can include rigorous data cleaning and validation steps. Implementing Strong Data Governance Measures Implementing strong data governance measures is crucial in ELT.