Comments on: Makes for some ugly SQL, but… http://ambethia.com/feeder/?FeederAction=clicked&feed=Articles+%28RSS2%29&seed=http%3A%2F%2Fambethia.com%2F2008%2F06%2F19%2Fmakes-for-some-ugly-sql-but%2F&seed_title=Makes+for+some+ugly+SQL%2C+but%26%238230%3B The journal and personal website of Jason L Perry Fri, 21 Nov 2008 16:26:35 +0000 http://wordpress.org/?v=2.3.1 By: Jason Perry http://ambethia.com/feeder/?FeederAction=clicked&feed=Articles+%28RSS2%29&seed=http%3A%2F%2Fambethia.com%2F2008%2F06%2F19%2Fmakes-for-some-ugly-sql-but%2F&seed_title=Makes+for+some+ugly+SQL%2C+but%26%238230%3B#comment-3275 Jason Perry Thu, 19 Jun 2008 15:55:42 +0000 http://ambethia.com/feeder/?FeederAction=clicked&feed=Articles+%28RSS2%29&seed=http%3A%2F%2Fambethia.com%2F2008%2F06%2F19%2Fmakes-for-some-ugly-sql-but%2F&seed_title=Makes+for+some+ugly+SQL%2C+but%26%238230%3B#comment-3275 <code lang="ruby"> Book.find(2).listings </code> <code lang="sql"> SELECT * FROM `books` WHERE (`books`.`id` = 2) SELECT * FROM `listings` WHERE (`listings`.book_id = 2) </code> As many selects from the `guides` table as there are listings. <code lang="ruby"> Book.find(2).listings.sort </code> <code lang="sql"> SELECT * FROM `books` WHERE (`books`.`id` = 2) SELECT * FROM `listings` WHERE (`listings`.book_id = 2) SELECT * FROM `guides` WHERE (`guides`.`id` = 8) SELECT * FROM `guides` WHERE (`guides`.`id` = 2) SELECT * FROM `guides` WHERE (`guides`.`id` = 4) SELECT * FROM `guides` WHERE (`guides`.`id` = 1) SELECT * FROM `guides` WHERE (`guides`.`id` = 7) SELECT * FROM `guides` WHERE (`guides`.`id` = 5) </code> Book.find(2).listings

 

SELECT * FROM `books` WHERE (`books`.`id` = 2)
SELECT * FROM `listings` WHERE (`listings`.book_id = 2)

 

As many selects from the `guides` table as there are listings.

Book.find(2).listings.sort

 

SELECT * FROM `books` WHERE (`books`.`id` = 2)
SELECT * FROM `listings` WHERE (`listings`.book_id = 2)
SELECT * FROM `guides` WHERE (`guides`.`id` = 8)
SELECT * FROM `guides` WHERE (`guides`.`id` = 2)
SELECT * FROM `guides` WHERE (`guides`.`id` = 4)
SELECT * FROM `guides` WHERE (`guides`.`id` = 1)
SELECT * FROM `guides` WHERE (`guides`.`id` = 7)
SELECT * FROM `guides` WHERE (`guides`.`id` = 5)

 

]]> By: Pope http://ambethia.com/feeder/?FeederAction=clicked&feed=Articles+%28RSS2%29&seed=http%3A%2F%2Fambethia.com%2F2008%2F06%2F19%2Fmakes-for-some-ugly-sql-but%2F&seed_title=Makes+for+some+ugly+SQL%2C+but%26%238230%3B#comment-3274 Pope Thu, 19 Jun 2008 15:13:21 +0000 http://ambethia.com/feeder/?FeederAction=clicked&feed=Articles+%28RSS2%29&seed=http%3A%2F%2Fambethia.com%2F2008%2F06%2F19%2Fmakes-for-some-ugly-sql-but%2F&seed_title=Makes+for+some+ugly+SQL%2C+but%26%238230%3B#comment-3274 Ahhh...but what does the SQL look like? Ahhh…but what does the SQL look like?

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