Module 13 (Introduction to SQL - Part 2).pdf
Module 13 (Introduction to SQL - Part 2).pdf
Module 13 (Introduction to SQL - Part 2).pdf
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The OUTER JOINAs a matter of good database designpractice, you should avoid outer joins asmuch as possible, because of the addedcomplexity and extra code needed <strong>to</strong> handlethe resulting special cases.Try instead <strong>to</strong> use left joins consistently,always expressing the query so that theselection of the left-hand table makes sense.