8 articles tagged #Business Intelligence
Are your Tableau calculated fields returning NULL instead of expected values? Learn how to troubleshoot type mismatches, aggregation errors, NULL handling, and calculation order with practical examples and proven best practices.
Are your Power BI slicers showing incorrect values, blank visuals, or inconsistent totals? The culprit is often an incorrect cross-filter direction between tables. Learn how filter propagation works, why bidirectional relationships cause unexpected behavior, and how to design a clean Power BI data
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 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.
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.
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.
Your Power BI running total looks perfect on the first page, then resets to zero on the next date or category. Here's why DAX cumulative measures break and exactly how to fix them.