#sql-tutorial

MU Murat Culum

PostgreSQL Alt Sorgular (Subqueries) / Part 8

Giriş

Jun 17, 2026 · 3 min read · 0 claps #postgresql #subquery #query-optimization

HUM MKT

OM Omkar Devkar

Python, SQL, Power BI or AI: What Should a Fresher Learn First?

Every fresher stepping into the tech world faces the same overwhelming question: Where do I even start? With so many tools and technologies…

Jun 15, 2026 · 6 min read · 0 claps #python-for-beginners #sql-tutorial #learning-power-bi

HUM

VA Vanshika Gupta

I Couldn’t Write a SQL Query Today… So I Started Learning SQL from Scratch

A simple Day 1 experience of learning SQL and exploring how real-world systems store data.

May 04, 2026 · 2 min read · 0 claps #learn-sql #beginner #beginners-guide

TCH

MR Mr.Anees · Towards Data Engineering

Filtering, Sorting, and Aggregations in SQL (GROUP BY, HAVING) — The Point Where Data Starts…

You’ve already learned how to pull data using SQL.

Apr 15, 2026 · 4 min read · 0 claps paywalled #sql #data-engineering #learn-sql

TCH

FO Ford Lucas · Write A Catalyst

How I Stopped Writing Bad Queries and Built SQL Systems That Actually Scale

From messy SELECT statements to production-grade data pipelines.

Mar 22, 2026 · 3 min read · 27 claps paywalled #sql #sql-server #sql-tutorial

MDA TCH

TI Tiye Baldwin-Anderson

Views vs CTEs (When to Use Which, Without Overthinking)

Views and CTEs (Common Table Expression) solve different problems.

Feb 17, 2026 · 2 min read · 0 claps #sql #relational-databases #database-design

FO Ford Lucas · Write A Catalyst

SQL Made Me Dangerous at Work

How Writing Fewer Queries Started Solving Bigger Problems.

Feb 09, 2026 · 4 min read · 31 claps paywalled #sql #sql-server #sql-tutorial

TCH SPT

FO Ford Lucas · Write A Catalyst

SQL Is Quietly Running Your Company

The Real SQL Programs I Rely on When Accuracy Actually Matters.

Feb 06, 2026 · 2 min read · 59 claps paywalled #sql #sql-server #sql-tutorial

HUM MKT

DH Dhruv Babbar

SQL CTEs and Advanced Analytics: Writing Readable, Powerful Queries:-

(Series: SQL Learning Journey — From Zero to Job-Ready Projects | Part 3)

Jan 29, 2026 · 4 min read · 25 claps #sql #data-analytics #sql-tutorial

TCH

FO Ford Lucas · Write A Catalyst

SQL Is Not a Query Language

How I Learned to Use SQL as a Data Modeling and Decision Tool.

Jan 25, 2026 · 3 min read · 54 claps paywalled #sql #sql-server #sql-tips

SOC ECO

SH Shaloo Mathew · SQL Explained

Advanced SQL Tutorial Part 5 — SQL PIVOTING 🔨

Pivoting involves rotating a table by converting unique values from a single column into multiple columns. This rearrangement turns rows…

Sep 12, 2025 · 4 min read · 59 claps paywalled #pivoting #sql-pivot #advanced-sql-techniques

DU Dusan Velimirovic

Mastering CROSS JOIN in T-SQL: A Comprehensive Tutorial

In SQL, the CROSS JOIN operation is one of the simplest yet most powerful types of joins. Unlike other joins (such as INNER JOIN, LEFT…

Nov 14, 2024 · 4 min read · 713 claps paywalled #t-sql #cross-join #sql-joins

AK Akhil Zade

SQL(Structured Query Language) Tutorial

What is SQL?

Jan 15, 2023 · 8 min read · 0 claps #sql #sql-tutorial #sql-joins-query

AI SCI

SH Shilpa Sri Karra

Day 34 of #66DaysOfDataChallenge

Some SQL to laze off my Sunday.

Feb 14, 2022 · 1 min read · 0 claps #data-science #66-days-of-data #challenge

SM Smita Gudale

“Distinct vs Group By in SQL Server”

DISTINCT-

Dec 05, 2019 · 1 min read · 15 claps #sql-tutorial #distinct-keyword #group-by-clause