Unlocking the Power of FULL OUTER JOIN in SQL: Performance, Use Cases & Examples
Discover how the FULL OUTER JOIN in SQL can simplify queries, improve performance, and solve real-world data problems
2025-11-10
Outer Joins
Unlocking the Power of FULL OUTER JOIN in SQL: Performance, Use Cases & Examples
The JOIN statement is one of the most common operations SQL developers perform. Yet in a world ruled by Inner and Left Joins, the poor Full Outer Join is like Cinderella before the ball – allowed out on only the rarest of occasions. In an (unscientific) survey I once performed of SQL developers at one Fortune 100 firm, half of the developers had never used a Full Outer Join in production code, and the rest had used it in a tiny handful of occasions.
2025-10-01
2019-12-12
956 reads
Understanding Outer Joins in SQL
The basics of outer joins are shown in this short piece that explains how they work.
2019-11-19
9,635 reads
2015-12-17
1,698 reads
Outer Join – What am I missing (SQL Spackle)
This article shows how to find missing rows in a table using a outer join.
2024-10-18 (first published: 2013-11-12)
24,273 reads
2012-12-27
2,096 reads
Blogs
Flyway Tips: AI Generating Migration Script Names
By Steve Jones
AI is a big deal in 2026, and at Redgate, we’re experimenting with how...
The Book of Redgate: Get the right stuff done
By Steve Jones
Another of our values: The facing page has this quote: “We admire people who...
Runing tSQLt Tests with Claude
By Ed Elliott
Running tSQLt unit tests is great from Visual Studio but my development workflow...
Forums
No Defaults Passwords Ever
Comments posted to this topic are about the item No Defaults Passwords Ever
Introduction of OPTIMIZE_FOR_SEQUENTIAL_KEY = ON
Hi, We have low latency high volume system. I have a table having 3...
The Long Name
Comments posted to this topic are about the item The Long Name
Question of the Day
The Long Name
I run this code to create a table:
When I check the length, I get these results:
A table name is limited to 128 characters. How does this work?