📰 Dev.to · Vivek Kumar
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⚡ AI Lessons
Dev.to · Vivek Kumar
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3w ago
KPI Tracking with SQL: A Practical Starter Kit for SaaS Developers
Learn how to track the most critical SaaS KPIs—MRR, churn, DAU/MAU stickiness, ARPU, and more—directly from your database using SQL, with real query examples an
Dev.to · Vivek Kumar
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
SQL String Functions: Clean, Transform, and Tame Messy Data Like a Pro
A practical guide to SQL string functions — TRIM, CONCAT, REPLACE, SUBSTRING, UPPER/LOWER, and more — with real-world data cleaning scenarios you'll actually en
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