Why AI Databases Don’t Need SQL
For decades, SELECT * FROM WHERE has been the golden rule of database queries. Whether for reporting systems, financial analysis, or user… Continue reading on Level Up Coding » For…
Top-N Per Group: The SQL Pattern Behind Hundreds of Interview Questions
Continue reading on Medium » Continue reading on Medium » Read More Sql on Medium #sql
From Sunday League to El Clásico: How SQL Row Locking Can Crush Your Database
When building software, most of us rely heavily on a classic safety net: ACID principles and SQL transaction management. We tell ourselves… Continue reading on CodeToDeploy » When building software,…
SQL for data analysts — the 10 queries you will use every single day
Not a beginner’s introduction to SQL. A working analyst’s reference to the queries that show up in every real project — with the exact… Continue reading on Medium » Not…
Data Science Career Path: Skills, Salary, and Opportunities
Introduction Continue reading on Medium » IntroductionContinue reading on Medium » Read More Sql on Medium #sql
UUID vs BIGINT: What Happens When Your Database Hits 200M Rows?
Both work at small scale. At hundreds of millions of rows, identifier width, index locality, foreign keys, cache pressure, and write… Continue reading on Skill Stuff » Both work at…
7 SQL Queries That Separate Junior From Senior Engineers
Not about knowing obscure syntax. About what the query reveals you were actually thinking about before you wrote it. Continue reading on Medium » Not about knowing obscure syntax. About…
10 SQL Techniques to Detect and Diagnose N+1 Query Problems
SQL techniques for exposing N+1 query patterns and tracing their production performance impact Continue reading on Medium » SQL techniques for exposing N+1 query patterns and tracing their production performance…
10 Window Function Tricks That Will Make You Look Like a SQL Pro.
If you’ve been using SQL for a while, you’ve probably already met ROW_NUMBER(), RANK(), and SUM() OVER(). Continue reading on Medium » If you’ve been using SQL for a while,…
Why Self-Joins for Hierarchy Navigation More Powerful Than You Think (And How to Master Them)
Hierarchical self-joins for efficient traversal, lineage analysis, and scalable relationship queries Continue reading on Medium » Hierarchical self-joins for efficient traversal, lineage analysis, and scalable relationship queriesContinue reading on Medium…
JOINS IN SQL
The process through which data from multiple tables is retrieved simultaneously is known as JOIN. Continue reading on Medium » The process through which data from multiple tables is retrieved…
SQL to Cypher — 10 Queries You Already Know
The query every backend developer has needed and nobody enjoys writing Continue reading on Medium » The query every backend developer has needed and nobody enjoys writingContinue reading on Medium…
Testing Generated SQL Without Ever Comparing SQL
A natural-language-to-SQL pipeline creates a strange testing problem. Continue reading on Medium » A natural-language-to-SQL pipeline creates a strange testing problem.Continue reading on Medium » Read More Sql on Medium…
Local-First Data Engineering: Prototyping Snowflake Models with DuckDB, DBeaver & dbt
Every data engineer knows the iteration loop: Write a complex 200-line SQL model. Execute. Wait for the virtual warehouse to resume. Get a… Continue reading on Medium » Every data…
A practical guide to handling changing data in dimension tables — with SQL examples for every SCD…
Data changes. A customer moves cities, a product gets reclassified, an employee changes departments. In a data warehouse, how you handle… Continue reading on Medium » Data changes. A customer…
Teaching the Optimizer to Learn: How Machine Learning Is Reshaping Query Optimization
The optimizer’s oldest weak point Continue reading on Medium » The optimizer’s oldest weak pointContinue reading on Medium » Read More Sql on Medium #sql
How Do We ETL: A Comprehensive Guide to ETL Processes, Table Types, and Slowly Changing Dimensions
A practitioner’s deep dive into building robust, audit-ready data pipelines — from raw extraction to SCD Type 6 and everything in between. Continue reading on Medium » A practitioner’s deep…
10 Technical Skills Every Data Engineer Should Have
The stack everybody actually uses, explained in plain English. Continue reading on Medium » The stack everybody actually uses, explained in plain English.Continue reading on Medium » Read More Sql…
Why RASTER Data in SQL More Powerful Than You Think (And How to Master Them)
How raster data enables powerful spatial analysis, modeling, and visualization directly within SQL workflows Continue reading on Medium » How raster data enables powerful spatial analysis, modeling, and visualization directly…
Perintah Untuk Menjalankan Script SQL
Berikut ini adalah perintah untuk menjalankan script SQL di Ubuntu server versi 26 : Continue reading on Medium » Berikut ini adalah perintah untuk menjalankan script SQL di Ubuntu server…