11 articles tagged #Analytics
Many developers create SQL reports to answer recurring business questions, but those same queries can become the foundation of a profitable analytics product. Learn how to transform reusable SQL report templates into a subscription-based analytics platform for small and medium-sized businesses.
Your HAVING clause looks correct but keeps dropping groups you know should be there. This guide breaks down every common reason HAVING silently eliminates valid rows — NULLs, type mismatches, WHERE vs HAVING confusion — and shows you exactly how to fix each one.
Your CASE WHEN logic looks correct, but the column keeps coming back NULL. This happens more often than you'd expect, and the root causes are almost always subtle — mismatched types, NULL comparison traps, or a missing ELSE clause silently swallowing rows.
Your Tableau dashboard looks complete, but certain rows keep disappearing without any error. If your data spans multiple time zones, a quiet UTC offset mismatch in date filters is likely the culprit. Here's how to catch and fix it.
COUNTIFS applies AND logic by default, so combining OR conditions inside one formula silently undercounts your data. Here's exactly why it breaks and four reliable patterns to fix it.
PostHog and Mixpanel both promise product analytics, but the pricing math diverges fast once you pass 10k monthly events. Here's an honest breakdown of event costs, self-hosting trade-offs, and which tool actually fits a developer-led SaaS.
Your PostgreSQL rank is returning unexpected numbers when multiple rows share the same value in a partition. Here's exactly why RANK(), DENSE_RANK(), and ROW_NUMBER() behave differently on ties — and how to pick the right one.
Grafana Cloud and Axiom both promise painless observability, but their pricing models and query experiences diverge sharply. Here's what actually happens when you ship real logs, run real queries, and watch the bill.
A Tableau Top N filter often returns unexpected results because filters are evaluated in a specific order. If Context Filters are missing or configured incorrectly, Top N calculations may be performed against the entire dataset instead of the filtered subset. Learn how Tableau's order of operations
Power BI's built-in time intelligence functions assume a standard Gregorian calendar. When your data uses fiscal years, 4-4-5 periods, or custom date tables, those functions silently return wrong numbers. Here's how to diagnose and fix it.
Freemium is supposed to be a growth engine, but a misplaced paywall can turn curious signups into instant churners. Here's how to spot the limits that silently kill activation before users ever see your product's value.