Comments on: MySQL: Deleting with Left Join http://www.dinke.net/blog/en/2009/12/15/mysql-deleting-with-left-join/ Dinke's Personal Blog Fri, 13 Jan 2012 17:23:11 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: mcts training http://www.dinke.net/blog/en/2009/12/15/mysql-deleting-with-left-join/comment-page-1/#comment-836 mcts training Sat, 02 Jan 2010 06:09:02 +0000 http://www.dinke.net/blog/en/?p=619#comment-836 MySQL is often used in free software projects that require a full-featured database management system, including projects such as WordPress, phpBB and other software built on the LAMP software stack. It is also used in many high-profile, me so excited to visit the site aits give me good information about the MySQL: Deleting with Left Join .its nice sharing with us........ MySQL is often used in free software projects that require a full-featured database management system, including projects such as WordPress, phpBB and other software built on the LAMP software stack. It is also used in many high-profile, me so excited to visit the site aits give me good information about the MySQL: Deleting with Left Join .its nice sharing with us……..

]]> By: Dinke http://www.dinke.net/blog/en/2009/12/15/mysql-deleting-with-left-join/comment-page-1/#comment-642 Dinke Fri, 18 Dec 2009 12:34:06 +0000 http://www.dinke.net/blog/en/?p=619#comment-642 Thanks Shantanu, I didn't use them here because I wanted to make examples easier to read :) Thanks Shantanu, I didn’t use them here because I wanted to make examples easier to read :)

]]> By: Shantanu Oak http://www.dinke.net/blog/en/2009/12/15/mysql-deleting-with-left-join/comment-page-1/#comment-641 Shantanu Oak Fri, 18 Dec 2009 10:30:49 +0000 http://www.dinke.net/blog/en/?p=619#comment-641 Using aliases can make your life easier... delete md from master_domains AS md left join result_domains_frontend AS rdf on md.id=rdf.master_id where rdf.master_id is null ; Using aliases can make your life easier…

delete md from master_domains AS md
left join result_domains_frontend AS rdf
on md.id=rdf.master_id
where rdf.master_id is null ;

]]> By: dinke http://www.dinke.net/blog/en/2009/12/15/mysql-deleting-with-left-join/comment-page-1/#comment-585 dinke Tue, 15 Dec 2009 08:54:57 +0000 http://www.dinke.net/blog/en/?p=619#comment-585 Original tables are MyISAM tables with plenty more fields than I put here and of course that I have index on master_id field, along with primary on id and unique on domain :) Anyway, let's add it here so it don't cofuse others :) Btw, I can't have unique on master_id, domain pair since master_id can also have null values, because there are many domains generated without typo (too complicate to explain) :) Original tables are MyISAM tables with plenty more fields than I put here and of course that I have index on master_id field, along with primary on id and unique on domain :) Anyway, let’s add it here so it don’t cofuse others :)

Btw, I can’t have unique on master_id, domain pair since master_id can also have null values, because there are many domains generated without typo (too complicate to explain) :)

]]> By: Goran Rakic http://www.dinke.net/blog/en/2009/12/15/mysql-deleting-with-left-join/comment-page-1/#comment-581 Goran Rakic Tue, 15 Dec 2009 03:03:53 +0000 http://www.dinke.net/blog/en/?p=619#comment-581 A i UNIQUE bi trebalo da bude par (master_id, domain) jer ista greška može da se pogodi za dva različita glavna domena. A i UNIQUE bi trebalo da bude par (master_id, domain) jer ista greška može da se pogodi za dva različita glavna domena.

]]> By: Goran Rakic http://www.dinke.net/blog/en/2009/12/15/mysql-deleting-with-left-join/comment-page-1/#comment-579 Goran Rakic Tue, 15 Dec 2009 02:47:41 +0000 http://www.dinke.net/blog/en/?p=619#comment-579 Zašto nemaš indeks ključ na results_domain.master_id? Zašto nemaš indeks ključ na results_domain.master_id?

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