http://www.mysqldiary.com Exploring, Sharing and Discussing MySQL practice Mon, 18 Jul 2011 20:03:03 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.mysqldiary.com/conditional-joins-in-mysql/ http://www.mysqldiary.com/conditional-joins-in-mysql/#comments Sun, 07 Feb 2010 19:43:12 +0000 Hazan Ilan http://www.mysqldiary.com/?p=71 One way to do a “Conditional Join” in MySQL is by using a “LEFT JOIN”.  Create a “LEFT JOIN” for each condition and combine the results into one column using an “IF” statement by the “SELECT” expression.  Here’s an example: Suppose you have three tables: questions: a table consisting of question ids, timestamps, and whether [...]

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