Reading Record: "Understanding SQL Reasonably Well with Illustrations"

I will summarize my thoughts after reading "Understanding SQL Reasonably Well with Illustrations."Those with existing SQL knowledge can read through this book in about 100 minutes. イラストでそこそこわかるSQL ...

Practicing SQL GROUP BY and HAVING with a Fictional Household Account Book: How I Finally Understood the Difference from WHERE

When I started learning SQL, I managed to get through SELECT and WHERE, but the first things that stopped me in my tracks ...
shattered.io

AI Code Review on GitHub Actions: 12 Steps, 75 Min [2026]

Build an AI code review pipeline on GitHub Actions with Semgrep, reviewdog and a Python model reviewer. 12 steps, tested code ...
YouTube on MSN

Understanding SQL PARTITION BY through practical ranking examples

PostgreSQL window functions make it possible to rank records, calculate running totals, and analyze data without combining ...
GitHub

M3_SAMPLE_DATA.md

Implementation status, 29 October 2026: M3 is approved and implemented. The separate synthetic database at examples/m3-demo/m3_demo.sqlite3 contains exactly these ...
learn

SELECT - GROUP BY clause (Transact-SQL)

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric SQL database in Microsoft Fabric A ...
thecode

Агрегатные функции в SQL: COUNT, SUM, AVG, MIN и MAX

Настоящая аналитика начинается там, где нужно узнать общую выручку за месяц, средний чек или количество активных клиентов. Чтобы не ...
habr

Почему `SUM() OVER (ORDER BY ...)` иногда считает «неправильно»: разбираем оконные фреймы в SQL

Оконные функции в SQL полезны тем, что позволяют делать аналитику по строкам без GROUP BY: считать ранги, накопительные итоги, скользящие средние ...
Geeky Gadgets

Build Faster Excel Workflows Using FILTER, IFS, XLOOKUP, and LET for Real-World Data

What if you could transform hours of tedious spreadsheet work into just minutes of streamlined efficiency? Simon Sez IT takes a closer look at how Excel’s most powerful functions can transform the way ...
snowflake

SQL JOINs Guide: Types, Examples & Interview Prep

SQL JOINs are fundamental commands used to combine rows from two or more tables based on related columns. They enable powerful data retrieval across relational databases, essential for reporting, ...
cloud

Getting AI to write good SQL: Text-to-SQL techniques explained

Organizations depend on fast and accurate data-driven insights to make decisions, and SQL is at the core of how they access that data. With Gemini, Google can generate SQL directly from natural ...