{"id":87,"date":"2026-02-26T04:56:21","date_gmt":"2026-02-26T04:56:21","guid":{"rendered":"https:\/\/gigz.pk\/powerbi\/?post_type=lesson&#038;p=87"},"modified":"2026-03-17T05:32:04","modified_gmt":"2026-03-17T05:32:04","slug":"what-is-dax-2","status":"publish","type":"lesson","link":"https:\/\/gigz.pk\/powerbi\/lesson\/what-is-dax-2\/","title":{"rendered":"What is DAX?"},"content":{"rendered":"\n<p>DAX (Data Analysis Expressions) is a formula language used in Microsoft Power BI, Microsoft Excel (Power Pivot), and Microsoft SQL Server Analysis Services (SSAS Tabular) to create custom calculations and perform advanced data analysis.<\/p>\n\n\n\n<p>DAX helps transform raw data into meaningful insights by allowing users to define calculations inside the data model.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where is DAX Used?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Creating Calculated Columns<\/li>\n\n\n\n<li>Creating Measures<\/li>\n\n\n\n<li>Performing aggregations such as SUM, AVERAGE, and COUNT<\/li>\n\n\n\n<li>Time Intelligence calculations like Year-to-Date and Month-to-Date<\/li>\n\n\n\n<li>Applying advanced filtering and conditional logic<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Key Components of DAX<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Calculated Columns<\/h3>\n\n\n\n<p>Calculated columns perform row-by-row calculations and are stored in the data model.<\/p>\n\n\n\n<p>Example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Total Price = Sales[Quantity] * Sales[Unit Price]<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Measures<\/h3>\n\n\n\n<p>Measures are dynamic calculations that change based on the filter context in a report or visual.<\/p>\n\n\n\n<p>Example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Total Sales = SUM(Sales[Total Price])<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Functions<\/h3>\n\n\n\n<p>DAX includes many built-in functions such as:<\/p>\n\n\n\n<p>SUM<br>AVERAGE<br>COUNT<br>IF<br>CALCULATE<br>FILTER<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why is DAX Important?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enables advanced analytics<\/li>\n\n\n\n<li>Allows creation of custom KPIs and metrics<\/li>\n\n\n\n<li>Makes reports dynamic and interactive<\/li>\n\n\n\n<li>Handles complex data relationships<\/li>\n\n\n\n<li>Supports time-based analysis<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>DAX is a powerful analytical language that enhances data modeling and reporting capabilities. Learning DAX is essential for creating advanced and professional reports in Power BI and other Microsoft BI tools.<\/p>\n\n\n<div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/gigz.pk\/powerbi\/\">Home<\/a><\/span> \u00bb <span class=\"breadcrumb_last\" aria-current=\"page\">Power BI DAX Mastery > DAX Fundamentals > What is DAX?<\/span><\/span><\/div>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1773725743048\"><strong class=\"schema-faq-question\"><\/strong> <p class=\"schema-faq-answer\"><\/p> <\/div> <\/div>\n","protected":false},"menu_order":24,"template":"","class_list":["post-87","lesson","type-lesson","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is DAX? - Power BI Learning Hub<\/title>\n<meta name=\"description\" content=\"The formula language for advanced analytics. 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