Data Analyst: SQL Joins In 8 MINUTES!
Автор: Analyze With Casey
Загружено: 2025-05-21
Просмотров: 164
The video I wish I had in health informatics school!
Learn how to break down #bigdata in healthcare with a #dataanalyst /data scientist, as she demystifies SQL joins, data analytics, and their impact on accurate data reporting. Learn how small changes in your SQL code can lead to major discrepancies in your hospital reports. In this video, Casey uses a whiteboard to illustrate one-to-many and one-to-one relationships and explains the critical differences between inner and outer joins. Whether you're counting patients or appointments, understanding your SQL joins is essential for truthful and accurate data analysis.
00:00 Introduction and Background
00:30 The Importance of SQL Joins
00:50 Understanding One-to-Many Relationships
02:28 Exploring One-to-One Relationships
03:40 Inner vs Outer Joins
05:11 Impact of Joins on Aggregate Queries
07:44 Conclusion and Call to Action
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