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Complete Guide to Data Transformation: Basics to Advanced

Ascend.io

It derives not just clean data, but data that provides greater insights. Data Aggregation Data aggregation is a powerful technique that involves compiling data from various sources to provide a comprehensive view. Common functions for Data Aggregation SQL GROUP BY SUM() AVG() COUNT() PYTHON.groupby().sum().mean().count()

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Data Warehousing Guide: Fundamentals & Key Concepts

Monte Carlo

A data warehouse is an online analytical processing system that stores vast amounts of data collected within a company’s ecosystem and acts as a single source of truth to enable downstream data consumers to perform business intelligence tasks, machine learning modeling, and more.

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Data Marts: What They Are and Why Businesses Need Them

AltexSoft

Instead of combing through the vast amounts of all organizational data stored in a data warehouse, you can use a data mart — a repository that makes specific pieces of data available quickly to any given business unit. What is a data mart? Hybrid data marts. loading data into a data mart.

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The Good and the Bad of Apache Kafka Streaming Platform

AltexSoft

The technology was written in Java and Scala in LinkedIn to solve the internal problem of managing continuous data flows. A publisher (say, telematics or Internet of Medical Things system) produces data units, also called events or messages , and directs them not to consumers but to a middleware platform — a broker.

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Analytics Engineer: Job Description, Skills, and Responsibilities

AltexSoft

The ELT paradigm allows for loading raw data right into a cloud warehouse, data lake , or lakehouse , so transformations can happen afterward. It is a big plus if your future analytics engineer has hands-on experience with tools for building data pipelines. Transformations may include.

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Data Pipeline- Definition, Architecture, Examples, and Use Cases

ProjectPro

Data Pipeline Example Suppose you are running an eCommerce business and want to use data for quick insights or offer personalizations effectively. In that case, you will be required to build numerous pipelines for reporting, business intelligence, sentiment analysis , and recommendation systems.

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100+ Data Engineer Interview Questions and Answers for 2023

ProjectPro

Data engineers use the organizational data blueprint to collect, maintain and prepare the required data. Data architects require practical skills with data management tools including data modeling, ETL tools, and data warehousing. How did you go about resolving this?