Comments on: MySQL Pop Quiz #28 http://www.86db1.com/mysql-pop-quiz-28 IBM RPG and Databases Mon, 06 Sep 2010 02:31:47 +0000 http://wordpress.org/?v=2.3.3 By: Shantanu Oak http://www.86db1.com/mysql-pop-quiz-28#comment-282 Shantanu Oak Wed, 01 Oct 2008 04:10:32 +0000 http://www.86db1.com/mysql-pop-quiz-28#comment-282 <p>select s, length(s)-length(replace(s,’a',”)) as count_a from t;</p> select s, length(s)-length(replace(s,’a’,”)) as count_a from t;

]]> By: MySQL Pop Quiz #28 | Integribase.com http://www.86db1.com/mysql-pop-quiz-28#comment-281 MySQL Pop Quiz #28 | Integribase.com Tue, 30 Sep 2008 20:18:25 +0000 http://www.86db1.com/mysql-pop-quiz-28#comment-281 <p>[...] (more…) [...]</p> […] (more…) […]

]]> By: Scott Noyes http://www.86db1.com/mysql-pop-quiz-28#comment-280 Scott Noyes Tue, 30 Sep 2008 19:42:01 +0000 http://www.86db1.com/mysql-pop-quiz-28#comment-280 <p>Don’t forget to use CHARACTER_LENGTH rather than LENGTH, in case you’re dealing with multi-byte character sets:</p> <p>http://forge.mysql.com/tools/tool.php?id=60</p> <p>A simple modification lets you count arbitrary substrings too, not just single characters:</p> <p>http://forge.mysql.com/tools/tool.php?id=66</p> Don’t forget to use CHARACTER_LENGTH rather than LENGTH, in case you’re dealing with multi-byte character sets:

http://forge.mysql.com/tools/tool.php?id=60

A simple modification lets you count arbitrary substrings too, not just single characters:

http://forge.mysql.com/tools/tool.php?id=66

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