Notes on SQL Joins
It’s almost funny reflecting on when I first learned how to write SQL in 1985. It was using SQL/DS 1.1 (Structured Query Language/Data System) on a VMS/CMS operating system at the IBM center in the Los Angeles, California. That was in the Crocker Bank Building when I worked for First Interstate Bank. The building is still there and so are databases but both banks are long gone.
After 24 years of SQL a quick primer on joins seems like a good idea. I have a simple example that should help illustrate various joins and SQL semantics. You’ll find it as a blog page here …
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