#dataanalyst
Why normalize databases?
Yesterday, my tutoring student asked me why databases need to be normalized at all. She said: “Wouldn’t it be easier to just have one big table with all the information?”
It’s a common first question when learning about relational databases.
At first, one big table (e.g. customer name, order date, product name, price) seems easiest.
I told her:
Because that quickly leads to data redundancy, anomalies, and integrity issues when inserting, updating, or deleting records. Normalization means structuring data into separate, related tables, so that each fact is stored only once. This reduces redundancy & preserves consistency.
If it helps the poll get traction with the nerds who follow me, I’ll create some graphs from this data and post an analysis of the data!
Добірка #YouTube-канали про #DataScience
#Python → Corey Schafer
https://youtube.com/@coreyms?si=gMBzoBwAyR4eHtf2 #SQL → Joey Blue
https://youtube.com/@joeyblue1?si=d8AVdfkf7-mjfI7T #Excel → Chandoo
https://youtube.com/@chandoo_?si=CG4bri4FFENGvXHW #PowerBI → Guy in a Cube
https://youtube.com/@GuyInACube?si=lmNVnAspnQLM9pA9 #DataAnalyst → AlexTheAnalyst
https://youtube.com/@AlexTheAnalyst?si=4pD1VP0FGoRR5jGU #Mathematics → 3Blue1Brown
https://youtube.com/@3blue1brown?si=5ZxU-yXZdXWlGQqJ #ML → sentdex
https://youtube.com/@sentdex?si=ZAXb8d5hOBSa2c99
Data Cleaning in Power BI | Power Query | ETL | Complete Tutorial 2023 | For Beginners | #powerbi
datacleaning #powerbi #dataanalyst Data Cleaning in Power BI | Power Query | ETL | Complete Tutorial 2023 | For Beginners ... source
#Forage #goldmansachs Excel Skills for Business | Full Virtual Internship #dataanalyst #BI #DSA #AI
Welcome to our comprehensive walkthrough of the Goldman Sachs Excel Skills for Business Virtual Experience! This all-in-one ... source
Databricks offeriert kostenlose Version und investiert rund 100 Millionen Dollar in die nächsten Generation von Daten- und KI-Talenten
#AIAgent #AIEngineers #DataAnalyst #DataIntelligence #DataScientist @Databricks #künstlicheIntelligenz
Databricks offeriert kostenlose Version und investiert rund 100 Millionen Dollar in die nächsten Generation von Daten- und KI-Talenten
#AIAgent #AIEngineers #DataAnalyst #DataIntelligence #DataScientist @Databricks #künstlicheIntelligenz
Unlock Your Data Analysis Potential Avoid These Common Mistakes #datascience #dataanalyst
Are you ready to take your data analysis skills to the next level? In this video, we'll show you how to unlock your full potential by ... source
How to become Data Analyst with No experience. #dataanalyst #businessanalyst #analyticsmentor
Here are the Things you Need to do : 1. Join the relevant courses 2. Learn the skills and tools. 3. Do relevant projects and create a ... source
The data field has a serious naming problem – titles rarely match reality, and it's creating confusion for both companies and careers. If you work with data, I'm curious: does this disconnect resonate with your experience too?
New blogpost:
Want to use #ai for your business? Need expert insights at a self-help price? Meet the experienced consultant for the DIY budget.
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https://datatofu.wordpress.com/#DIY
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Tags: #python #dataanalyst #data #datamining #datascience #datainfrastructure #r #reels #repost #cloudcomputing #statistics #status #linux #entreprenuer #bigdata #bigdataanalytics
Дорожня карта для
#developer #devops #dataanalyst
та багато іншого
https://github.com/bootdotdev/curriculum
Screenshot from https://fedidb.org
I'm curious, is the recent decline in Fediverse users and activity due to people moving to BlueSky? What other factors might there be?
I'm sure there are ebbs and flows over time. But I do hope the overall trend continues to be upward.
Wie AI-Agent-Systems die Art und Weise der Geschäftsabwicklung verändern
#AIAgent #AIAgentSystems #DataAnalyst @databricks #GenAI #Governance #KIAgent #KITool #künstlicheIntelligenz
Difference b/w Data Analyst and POWER BI Developer #dataanalyst #powerbi #dataanalytics
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