While reading about Big Data, you might find the terms ELT, ETL, Data Warehouse, Data Lake. Using you own words, answer the following questions: 1- What is the difference between ELT and ETL? Explain. (6 marks) 2- Define each of the three functions that the ETL tools combine. (6 marks) 3- Define the terms "Data Warehouse" and "Data Lake", and state whether they serve the same purposes or not. (6 marks)
While reading about Big Data, you might find the terms ELT, ETL, Data Warehouse, Data Lake. Using you own words, answer the following questions: 1- What is the difference between ELT and ETL? Explain. (6 marks) 2- Define each of the three functions that the ETL tools combine. (6 marks) 3- Define the terms "Data Warehouse" and "Data Lake", and state whether they serve the same purposes or not. (6 marks)
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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![While reading about Big Data, you might find the terms ELT, ETL, Data Warehouse, Data
Lake.
Using you own words, answer the following questions:
1- What is the difference between ELT and ETL? Explain. (6 marks)
2- Define each of the three functions that the ETL tools combine. (6 marks)
3- Define the terms "Data Warehouse" and "Data Lake", and state whether they serve the
same purposes or not. (6 marks)
4-
ompare between Data Warehouse and Data Lake in the following areas:
Data Structure (raw / processed)- Purpose of data (undetermined yet/ for specific
purpose)- Accessibility (secure/ ease of use) (9 marks)
5- One of the advantages of Data Extraction tools is to improve accuracy. Discuss. (3
marks)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F47ab4398-19b6-4396-94fa-e15028a65434%2Fc6bb70cb-6aa0-4a91-8488-19f13a67be75%2F9a1xp6q_processed.png&w=3840&q=75)
Transcribed Image Text:While reading about Big Data, you might find the terms ELT, ETL, Data Warehouse, Data
Lake.
Using you own words, answer the following questions:
1- What is the difference between ELT and ETL? Explain. (6 marks)
2- Define each of the three functions that the ETL tools combine. (6 marks)
3- Define the terms "Data Warehouse" and "Data Lake", and state whether they serve the
same purposes or not. (6 marks)
4-
ompare between Data Warehouse and Data Lake in the following areas:
Data Structure (raw / processed)- Purpose of data (undetermined yet/ for specific
purpose)- Accessibility (secure/ ease of use) (9 marks)
5- One of the advantages of Data Extraction tools is to improve accuracy. Discuss. (3
marks)
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