iamcal.com

mysql-row-per-line

nobody@domain.com (Cal Henderson) — Mon, 16 Apr 2018 22:40:25 +0000

Ideally MySQL include this in a future version of mysqldump, but here's a neat little utility to split extended inserts into one row per line. This allows you to use extended inserts (for much faster importing of large tables) while having the ability to grep and diff rows easily.

Regexp Kung-fu

nobody@domain.com (Cal Henderson) — Thu, 28 Mar 2013 05:10:00 +0000

There are two answers guaranteed to show up on nearly every PHP question on Stack Overflow - use the mysqli/PDO extension instead of the deprecated mysql one (to avoid SQL injection), and that you can't parse HTML with regular expressions.

With that in mind, my favorite two answers:

[How PDO is still vulnerable to SQL injection attacks](http://stackoverflow.com/questions/134099/are-pdo-prepared-statements-sufficient-to-prevent-sql-injection/12202218#12202218) by Anthony Ferrara
[Parsing HTML with regular expressions](http://stackoverflow.com/questions/4231382/regular-expression-pattern-not-matching-anywhere-in-string/4234491#4234491) by Tom Christiansen

29th September, 6:08 am

nobody@domain.com (Cal Henderson) — Wed, 29 Sep 2010 06:08:00 +0000

jeremy cole has finally solved the mysql swapping-for-no-reason issue. very nice work [via ph]

17th August, 4:30 am

nobody@domain.com (Cal Henderson) — Tue, 17 Aug 2010 04:30:00 +0000

noting these down for later reference - two excellent answers on quora from adam d'angelo on why quora uses mysql instead of postgres or a nosql solution. he says everything i've been saying for the last few years, but more eloquently

24th October, 4:18 pm

nobody@domain.com (Cal Henderson) — Sat, 24 Oct 2009 16:18:00 +0000

a couple of interesting alternatives to phpMyAdmin, both simpler: sqlbuddy looks like a really well done minimalist effort, while phpMiniAdmin like like PMA from 10 years ago.

26th March, 6:37 pm

nobody@domain.com (Cal Henderson) — Thu, 26 Mar 2009 18:37:00 +0000

xtrabackup sounds like really good news for people backing up large innodb instances. streaming backups? yes pls

31st July, 8:47 pm

nobody@domain.com (Cal Henderson) — Mon, 31 Jul 2006 20:47:00 +0000

dathan's mysql blog is full of useful tips for people using mysql on a large scale. a kind of "advanced mysql hacks" book done right.

2nd July, 7:40 pm

nobody@domain.com (Cal Henderson) — Sat, 2 Jul 2005 19:40:00 +0000

mike b pointed me to this bizarre article from IBM's daniel sabbah describes lamp as "going to have to grow up at some point". err, right. because lamp clearly doesn't scale. it's not like the biggest websites in the world use it. ryan tomayko's response is on the mark.

21st January, 11:10 pm

nobody@domain.com (Cal Henderson) — Fri, 21 Jan 2005 23:10:00 +0000

backed up for later - the innodb hot backup script. faster than restoring from a dump, but more prone to corruption.

21st January, 7:41 am

nobody@domain.com (Cal Henderson) — Fri, 21 Jan 2005 07:41:00 +0000

gah. f was down for 5 hours after a routine database modification revealed massive innodb corruption which had somehow replicated to the slave. after splitting the cluster, our last backup was nine days old and a few million records short. eek. so a painstaking search and destroy for bad records was conducted. stupid mysql.