MySQL Duplicate Function

jeremy.massel — Fri, 09 Jul 2010 17:13:13 +0000

Sometimes you want the ability to duplicate (clone) entities in mySQL. But duplicating their children can be a huge pain! Here’s how:


/* parent table */

insert into [parent table]

select 0, [field1, field2, field3] from [tablename] where [parent table primary key] = [parent table object ID]
/* child table */

insert into [child table]

select 0, [field1, field2, field3], (select max([parent table primary key]) from [parent table]) from [child table] where [parent table primary key] = [parent table object ID]

important note! make sure that you don’t select the primary key of the table. instead, select 0, and the auto_increment function will automatically figure out the correct primary key

As always, if you have questions, post em in the comments!

mysql command doesn’t work in OS X snow leopard

jeremy.massel — Wed, 20 Jan 2010 20:09:01 +0000

So you install mySql on your mac, and it’s working great, but then you go into terminal to run a mysqldump or something, and it doesn’t work!

you get a message something like:
-bash: mysqldump: command not found

so how do you fix this? well, copy and paste the following into your terminal window and press enter:
echo export PATH="/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:$PATH" >> ~/.profile

source ~/.profile

whoa, whoa, you say. what is this doing? It makes it so that when you type any command into the terminal, it does a check of these folders before giving you the “command not found” error.

If you want to undo it, you can always edit your .profile, or just delete it.

Jeremy Massel's Blog » mySql

MySQL Duplicate Function

mysql command doesn’t work in OS X snow leopard