Master SQL Date Functions in 15 Minutes (DATEADD, DATEDIFF)
In this video, you'll learn everything you need to know about SQL Date Functions — one of the most commonly used (and commonly tested in interviews) parts of SQL for any data analyst, BI developer, or aspiring data professional.
We'll cover:
✅ DATEADD() – add or subtract time from a date
✅ DATEDIFF() – calculate the difference between two dates
✅ CURRENT_DATE() / GETDATE() – get today's date
✅ Real-world use cases: cohort analysis, aging reports, month-end reporting, and interview questions
Whether you're preparing for a data analyst interview, working on reporting in SQL, or just leveling up your SQL skills, this video will give you a practical, hands-on understanding of date functions with real examples.
Master SQL date function usage to effectively analyze order data and calculate metrics like year-on-year growth and customer tenure.
This tutorial provides a practical guide to handling time-based data in your databases. Whether you need to extract specific months, filter records from a particular timeframe, or calculate the number of days between events, these techniques streamline your workflow. It is designed for analysts and developers who need to perform precise data extraction without complex workarounds.
We will walk through common scenarios, such as identifying the longest gap between consecutive orders per customer and calculating the tenure of terminated employees. By applying these SQL date function methods, you can gain deeper insights into your business performance and improve your reporting accuracy. The lesson focuses on real-world applications of date filtering and interval calculations to help you optimize your data analysis tasks.
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