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Techtalks: Data Science

About Data Science

Data is no longer a trend or a buzzword, it’s a part of the growth strategy for every business. Machine Learning, Artificial Intelligence, Business Intelligence, Big Data – these tools help us analyze the past, understand the present, and look into the future with unmatched accuracy. Join the Techtalks community to explore these possibilities, find answers to your questions, and share your experience with others.
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anonymous

asked  Apr 4, 2022

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anonymous

asked  Nov 12, 2021

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anonymous

asked  Oct 29, 2021

What is data profiling in ETL?

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1answer
0votes
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Zaid md

answered  Mar 18, 2022

Data Profiling in ETL

The ETL data source is a collection of detailed data. It seeks to understand the structure, value, and significance of information and its relation to other information. This is done through Extraction, Conversion, and Upload (ETL) and helps companies find the information they need for their purposes.

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anonymous

asked  Jun 14, 2021

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Zaid md

answered  Mar 18, 2022

Relational Database (RDBMS)

  • RDBMS is a DBMS that enables the organization of aggregated data.
  • Relational DBMS is the most widely used database like Oracle, SQL Server. It is characterized by handling data in tables with basic keys that make it possible to identify the rows in each table separately. And an external key that allows you to associate the table with other tables.

OLAP (Online Analytical Processing)

  • OLAP is a collection of software tools that provide information to business decision-makers.
  • OLAP usually works on a standardized database to facilitate OLAP, not OLTP. These databases are often referred to as data warehouses.
  • You can check the comparison and key differences between OLAP vs OLTP here