Remove Analytics Application Remove Data Validation Remove Datasets Remove Structured Data
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SQL for Data Engineering: Success Blueprint for Data Engineers

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Data validations or data type checks can be performed using SQL, while duplicates, foreign key constraints, and NULL checks can all be identified using ETL solutions. Data processing tasks containing SQL-based data transformations can be conducted utilizing Hadoop or Spark executors by ETL solutions.

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100+ Big Data Interview Questions and Answers 2023

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Data Variety Hadoop stores structured, semi-structured and unstructured data. RDBMS stores structured data. Data storage Hadoop stores large data sets. RDBMS stores the average amount of data. MapReduce is a Hadoop framework used for processing large datasets.