Warning: Creating default object from empty value in /www/htdocs/v030397/mysql-qotd/wp-content/plugins/sitepress-multilingual-cms/sitepress.class.php on line 4991

Warning: Creating default object from empty value in /www/htdocs/v030397/mysql-qotd/wp-content/plugins/sitepress-multilingual-cms/sitepress.class.php on line 4993

Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/v030397/mysql-qotd/wp-content/plugins/sitepress-multilingual-cms/sitepress.class.php:4991) in /www/htdocs/v030397/mysql-qotd/wp-includes/feed-rss2-comments.php on line 8
http://mysql-qotd.casperia.net/archives/211 mysql 5.0/5.1 questions for learning purposes Fri, 06 Aug 2010 16:56:36 +0000 http://wordpress.org/?v=abc hourly 1 http://mysql-qotd.casperia.net/archives/211/comment-page-1#comment-31 urs Sat, 20 Feb 2010 23:33:03 +0000 http://mysql-qotd.casperia.net/?p=211#comment-31 <b>   Answers:   a b c d   All the deletes work. The <code>USING</code> syntax is also valid but harder to read, therefore I would recommend the syntax of b & d. Multi-table deletes can be very useful! b, c and d all use inner joins whereas a sub-query is used in a.   </b>
 
Answers:
 
a b c d
 
All the deletes work. The USING syntax is also valid but harder to read, therefore I would recommend the syntax of b & d. Multi-table deletes can be very useful! b, c and d all use inner joins whereas a sub-query is used in a.
 

]]>