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Full Discussion: MYSQL - trigger update on record insert or update
Top Forums Programming MYSQL - trigger update on record insert or update Post 302889989 by barrydocks on Monday 24th of February 2014 04:18:54 PM
Old 02-24-2014
Quote:
Originally Posted by spacebar
Since mySql doesn't allow "update or insert" syntax you will need to create a 'before insert' and a 'before update' trigger.

Example code:
Code:
create trigger before_insert_concat before insert on table1
for each row set col_comb  =  concat( new.cola,  ' - ',  new.colb,  ', ',  new.colc );

create trigger before_update_concat before update on table1
for each row set new.col_comb  =  concat( new.cola,  ' - ',  new.colb,  ', ',  new.colc );

Sorry I am a bit confused, does that mean I need to create a table named 'new' with 4 columns, 'col_comb', 'cola', colb', and 'colc'??

--------------Edit--------------------
Ignore all that, it works - thanks your a star :-)
Last edited by barrydocks; 02-24-2014 at 05:45 PM..
 

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LEARN ABOUT DEBIAN

update-default-ispell

UPDATE-DEFAULT-ISPELL(8)												  UPDATE-DEFAULT-ISPELL(8)

NAME

       update-default-ispell - update default ispell dictionary

SYNOPSIS

	update-default-ispell [--dico-postinst] [--triggered]

DESCRIPTION

       WARNING: Not to be used from the command line unless you know very well what you are doing.

       This program is intended to be called from ispell dictionary package postinst, from select-default-ispell or from dictionaries-common
       postinst (with --dico-postinst).

       When called under dpkg control without the --dico-postinst option, a dictionaries-common trigger is enabled to be run later.  In the
       triggered run (or when is called from the command line or with --trigger option), reads the system default from the debconf database and
       set default links in /etc/dictionaries-common pointing to the appropriate files in /usr/lib/ispell/.  Also updates the system-wide setting
       /etc/dictionaries-common/ispell-default.  and rebuilds the /var/cache/dictionaries-common/ispell.db and the emacsen, jed, and SquirrelMail
       support (to be put in /var/cache/dictionaries-common/) from the files in /var/lib/dictionaries-common/ispell

       When called from from dictionaries-common postinst with --dico-postinst symlinks creation step will be skipped and trigger not enabled.

OPTIONS

       --dico-postinst	Do not enable trigger nor try to set default symlinks.	--triggered	 Run all the code instead of trying to enable
			update-default-ispell trigger

SEE ALSO

       The dictionaries-common policy document

AUTHORS

       Rafael Laboissiere Agustin Martin Domingo

1.12.11 							     2013-1-22						  UPDATE-DEFAULT-ISPELL(8)
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