New Transact SQL Video Tutorial: JOINs - An Overview of the Five Types of JOINs (Cross, Outer, and Inner)
JOINs - An Overview of the Five Types of JOINs (Cross, Outer, and Inner) - view details
Understanding the types of JOINs and the differences between each is vitally important to anyone who writes queries/reports for a living. This video does an excellent job of explaining what many people find to be very intimidating: joining tables. This video is really meant to be watched as part of the other videos in this category since it is more theoretical rather than talking syntax. After watching this video, you should be able to think "visually" with your JOINs, understand when to use the INNER or the OUTER join and the purpose of the CROSS join.
Highlights from this video:and much more
- INNER join logic
- Discussions of matching vs. non-matching rows
- When to use an INNER or an OUTER join
- Using the CROSS JOIN and the architecture behind Cartesian products/cross product queries
- Should you use the CROSS JOIN often?
- Which join type is most popular? What does that depend on?
- LEFT OUTER JOIN, RIGHT OUTER JOIN, and the FULL OUTER JOIN
Note: This video include a sample SQL script
- Source: http://www.LearnTransactSQL.com
- Category: JOINs and UNIONs - Working with Multiple Tables
- Skill Level: 200 (Beginner - Intermediate)
- Length: 23:30 (0.00MB)
- Applies to Versions: SQL Server - All Versions
- Full Details
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Keywords Associated with this video: cartesian product, set of all possible ordered pairs whose first component is a member of X and whose second component is a memb
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