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.

Go beyond basics! Master data analysis & reporting with TCCI's Advanced Excel course for business professionals in Bopal, Ahmedabad.

https://tccicomputercoaching.wordpress.com/2025/07/28/excel-beyond-basics-advanced-excel-course-for-business-professionals/

Google opens alpha testing for new Trends API targeting developers and journalists: Early access program provides programmatic access to five years of search data with consistent scaling and geographic breakdowns. https://ppc.land/google-opens-alpha-testing-for-new-trends-api-targeting-developers-and-journalists/ #GoogleTrends #APITesting #DigitalMarketing #Journalism #DataAnalysis

My inner geek loves crunching #numbers!

Fears that falling #birthrates in US could lead to #population collapse are based on faulty assumptions https://theconversation.com/fears-that-falling-birth-rates-in-us-could-lead-to-population-collapse-are-based-on-faulty-assumptions-261031

透過多線段迴歸分析2015Q1-2025Q1美國聯邦公共債務數據，揭示其短期增長的顯著階段性特徵。

疫情前（2015-2017）債務增速平穩，每季約增0.26兆美元；2020年疫情爆發後，多輪財政刺激推動增速翻倍（2020-2023每季增0.50兆），2023年後進一步加速至每季0.60兆。

川普第二任初期（2025Q1）數據完全符合此高增速趨勢，顯示債務增長未隨疫情結束放緩。當前債務已突破37兆美元，年利息支出超1兆美元，財政可持續性面臨嚴峻挑戰。

看更多： https://aitrendsplot.blogspot.com/2025/07/blog-post_15.html

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還不能從數據當中看到關鍵資訊嗎？
超過千人參加過AI數據分析研習
超過百人學習中
最深度的AI數據分析
線上課程正在開課，趕緊報名吧
=====

New open-source tool makes complex data understandable

Y'all heard about this?

New dopamine source potentially unlocked.

Create interactive HTML-based reports fed by CSVs, TSVs, or JSON data with the format described using YAML instead of using an exported CSV to Alteryx to MS SQL to Power BI pipeline? Yes, please.

We thought moving to using Python and APIs to skip the "CSV to Alteryx" step was increasing efficiency (and decreasing software license costs). I think this would be even better. Too bad we would have to learn a new tool and don't have time.

Data Analysis #Training using #Tableau ! Learn #Dataanalysis in 3 hours using Tableau

Start your data analysis training today by completing this 3 hours long tableau data analysis training. Tableau Training Link ... source

https://quadexcel.com/wp/data-analysis-training-using-tableau-learn-dataanalysis-in-3-hours-using-tableau/

Datavzrd is a new tool for interactive visualization of tabular data that takes output specifications in YAML format and produces portable output that does not require a server process.

Summary: https://techxplore.com/news/2025-07-source-tool-complex.html

Original paper: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0323079

Netminer APK 6.3.5 is here!
Unlock deep data insights, analyze trends, and track patterns effortlessly. Perfect for Android users!
Download now
https://modhello.net/netminer.html
#DataAnalysis #AndroidApps #Netminer

(Don't forget alt text if you add the screenshot!)

In conversation with… Unpacking the “Why” Behind the Errors
Here we discuss the LLMs design and purpose in the context of interacting with and advising on health data, and demonstrate why the two may be at odds with one another:

https://wp.me/p7O2EL-2BM
https://www.diabettech.com/ai/in-conversation-with-unpacking-the-why-behind-the-errors/
#AI #AI #DataAnalysis #errors #explanation #files #LargeLanguageModels #LLMs #Nightscout #upload

Log by time, not by count

https://johnscolaro.xyz/blog/log-by-time-not-by-count

Why learning data science skills could be your best career upgrade in 2025

In today’s interconnected world, every click, call, and transaction generates reams of data. The ability to interpret these…
#UnitedStates #US #USA #AIintegration #america #careerupgrade2025 #dataanalysis #dataliteracy #DataScienceSkills #Data-DrivenDecision-Making #digitaltransformation #science #technology #unitedstatesofamerica #upskillingindatascience
https://www.europesays.com/2257875/

https://www.europesays.com/2257875/ Why learning data science skills could be your best career upgrade in 2025 #AIIntegration #america #CareerUpgrade2025 #DataAnalysis #DataLiteracy #DataScienceSkills #DataDrivenDecisionMaking #DigitalTransformation #science #technology #UnitedStates #UnitedStatesOfAmerica #UpskillingInDataScience #US #USA

美國向其他國家支付的利息支出金額，短期趨勢顯示從2023年第三季開始到2025年第一季已經增加速度趨緩了。

想知道更深入的分析嗎？
看更多： https://aitrendsplot.blogspot.com/2025/07/10.html

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還不能從數據當中看到關鍵資訊嗎？
超過千人參加過AI數據分析研習
超過百人學習中
最深度的AI數據分析
線上課程正在開課，趕緊報名吧
=====

In Conversation with…. Reviewing user data and system settings using AI
In this article, we look at the abilities of the LLMs to review data charts in image form from Nightscout and see what they suggest in terms of changing treatments, and how the contextualise those changes.

As a key way that users are
https://www.diabettech.com/ai/in-conversation-with-data-analysis-with-ai-diving-deep-into-nightscout-insights/
#AI #AI #charts #DataAnalysis #LargeLanguageModels #LLMs #Nightscout

Last chance to register!
AI-Assisted Data Analysis workshop → this Friday, 18 July
15:00–16:30 CEST · Online · Free
Explore how to use tools like ChatGPT to support research — ethically, practically, and responsibly.
Hands-on, fast-paced, and highly relevant.
Sign up: https://events.digital-research.academy/event/102/

Why You NEED to Learn Excel Macros & VBA – In 60 Seconds
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.Macros and VBA let you automate tasks, eliminate errors, and save tons of time — especially if you're dealing with reports, data analysis, or repetitive processes!

HR Dashboard | Learning and Development | #excel #dashboard #dataanalysis #tutorial #vba

Learning and Development Dashboard in Excel Part 1: Part 2: Check ... source

https://quadexcel.com/wp/hr-dashboard-learning-and-development-excel-dashboard-dataanalysis-tutorial-vba/

KNIME: mächtig, flexibel, Open Source – ideal für Datenanalyse & -prozesse. Nidataanalysisll wie Tableau, aber nerdfreundlich. Doch: Macht #GenAI solche Tools bald überflüssig? Wer nutzt KNIME und teilt Erfahrungen?#dataanalysis