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Archive for May, 2012

SQL Joins Simply Explained

As a part of my job I’m frequently “forced” to try to explain to junior (and sometimes senior) engineers how to write SQL queries (although I in no way claim that I’m a SQL Guru). What seems to need more explanation is how to use joins and I’ve found out that using simple diagrams helps the learning process. We are going to use the same method and accompany it with a simple example of two tables with two columns each. Read more…

Categories: SQL Tags: , ,
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