#data-engineering#opinion#sqlA Brief History of SQL: The Language That Refuses to DieSQL was born in 1973 at IBM, survived the NoSQL rebellion, and now powers 55.6% of all developers. Here's how.23 mart 202617 dəq.79
#analytics#career#dataData Analyst Roadmap 2026: From Zero to Hired in 20 WeeksA 20-week roadmap to become a data analyst: SQL, Python, BI tools, AI integration, portfolio strategy, and what interviews actually test.30 yanvar 202615 dəq.41
#ai#data-engineering#llmGraph Database vs Vector Database: One Finds Similar Things, the Other Finds Connected ThingsGraph databases find connections. Vector databases find similarities. When to use which, real benchmarks, and why PostgreSQL might replace both.23 yanvar 202615 dəq.40
#backend#career#pythonBackend Engineer Roadmap 2026: What Actually Matters (And What Doesn't)Backend engineers average $174K in 2026. Here is the real roadmap — languages, databases, cloud skills, and a 12-month plan.16 mart 202615 dəq.10
#ai#analytics#careerData Analyst in 2026: The Role AI Changed But Couldn't KillAI automated 30-40% of the old analyst job. The remaining 60% pays better than ever. Here is what the role actually looks like now.23 fevral 202611 dəq.9
#career#data-engineering#opinionCorrelated vs Non-Correlated Subqueries: The SQL Concept That Breaks Production at 2 AMThe real difference between correlated and non-correlated subqueries, with benchmarks, optimizer behavior, and the NOT IN NULL trap.7 yanvar 202615 dəq.8
#ai#python#llmBuild a RAG Chatbot in 30 Minutes with LangChain and Neon PostgreSQLBuild a RAG chatbot with LangChain, OpenAI embeddings, and Neon PostgreSQL. pgvector, no Pinecone, full Python code, 30 minutes.28 mart 202614 dəq.6
#postgresql#performance#backendYour Database Indexes Are Wrong — The $40K/Month Query You Don't Know AboutA single missing PostgreSQL index cost $40K/month. Partial indexes, covering indexes, BRIN — the indexing tricks most devs never learn.10 aprel 202615 dəq.5
#database#sql#backendSQLite Is the Most Deployed Database on Earth and You're Ignoring ItOne trillion SQLite databases exist right now. Turso, Litestream, and D1 fixed every limitation. Stop defaulting to Postgres.17 aprel 202615 dəq.3
#data-engineering#sql#open-sourcedbt Is Not Enough: SQLMesh, Coalesce, and the Next Wave of Data TransformationSQLMesh is 9x faster than dbt, with free dev environments. Fivetran-dbt merger raises lock-in concerns. Coalesce offers visual SQL. Decision framework.24 mart 202615 dəq.3
#sql#data-engineering#opinionPostgreSQL Is the Only Database You Need in 2026PostgreSQL won the Stack Overflow triple crown 3 years straight. With JSONB, pgvector, PostGIS, and full-text search, it replaces 5 databases.19 mart 202614 dəq.3
#career#data#sqlHow I Got My First Analyst Job in Azerbaijan (And What I'd Tell My Younger Self)From a management degree to Credit Analyst at Unibank Baku. My real path into data — SQL, banking, and grit.20 fevral 202619 dəq.3