Re: [GENERAL] triggers problems whit function
Tom Lane a écrit : Guillaume Lelarge [EMAIL PROTECTED] writes: Fernando Moreno a écrit : A trigger function must have a specific structure, it takes no arguments It can take arguments. No, it can't. At least not in the declaration. Oops, you're right. Arguments shouldn't be declared, but can be used in the body of a PL/pgsql trigger function. Sorry about this. -- Guillaume. http://www.postgresqlfr.org http://dalibo.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] triggers problems whit function
El mié, 22-10-2008 a las 15:01 -0500, Ma. Cristina Peña C. escribió: I want to use a function in to a trigger This is my CREATE FUNCTION subradio(integer) RETURNS integer AS 'select cast(count (claveubica) as integer ) from asradios where ubicacion =0;' LANGUAGE 'sql'; And my ttrigger is CREATE TRIGGER validaradios AFTER DELETE ON subestacion FOR EACH ROW EXECUTE PROCEDURE subradio(0); But I got an error ERROR: CreateTrigger: function subradio() does not exist What can I do?? write your function in plpgsql http://www.postgresql.org/docs/8.3/interactive/plpgsql-trigger.html cid:image002.jpg@01C8F24F.E2D90230 Ing. María Cristina Peña C. Analista Programador Sensa Control Digital S.A. de C.V. Dir. Av. Bravo #93 Ote. Col. Centro. Torreón Coah. Tel. Directo: (871) 747 01 04 Conmutador: (871) 747 01 01 Tel. Fax:(871) 747 01 90 Correo Electrónico: [EMAIL PROTECTED] -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
[GENERAL] triggers problems whit function
I want to use a function in to a trigger This is my CREATE FUNCTION subradio(integer) RETURNS integer AS 'select cast(count (claveubica) as integer ) from asradios where ubicacion =0;' LANGUAGE 'sql'; And my ttrigger is CREATE TRIGGER validaradios AFTER DELETE ON subestacion FOR EACH ROW EXECUTE PROCEDURE subradio(0); But I got an error ERROR: CreateTrigger: function subradio() does not exist What can I do?? Ing. María Cristina Peña C. Analista Programador Sensa Control Digital S.A. de C.V. Dir. Av. Bravo #93 Ote. Col. Centro. Torreón Coah. Tel. Directo: (871) 747 01 04 Conmutador: (871) 747 01 01 Tel. Fax:(871) 747 01 90 Correo Electrónico: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] image001.jpg
Re: [GENERAL] triggers problems whit function
2008/10/22 Ma. Cristina Peña C. [EMAIL PROTECTED] I want to use a function in to a trigger This is my CREATE FUNCTION subradio(integer) RETURNS integer AS 'select cast(count (claveubica) as integer ) from asradios where ubicacion =0;' LANGUAGE 'sql'; And my ttrigger is CREATE TRIGGER validaradios AFTER DELETE ON subestacion FOR EACH ROW EXECUTE PROCEDURE subradio(0); But I got an error ERROR: CreateTrigger: function subradio() does not exist What can I do?? A trigger function must have a specific structure, it takes no arguments and returns trigger. Besides, trigger functions are supposed to do some processing before or after insert, update or delete operations, so there's no sense in returning a row count. Take a look at the docs, specially chapter 35 and 38.9. Cheers.
Re: [GENERAL] triggers problems whit function
Fernando Moreno a écrit : 2008/10/22 Ma. Cristina Peña C. [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] I want to use a function in to a trigger This is my CREATE FUNCTION subradio(integer) RETURNS integer AS 'select cast(count (claveubica) as integer ) from asradios where ubicacion =0;' LANGUAGE 'sql'; And my ttrigger is CREATE TRIGGER validaradios AFTER DELETE ON subestacion FOR EACH ROW EXECUTE PROCEDURE subradio(0); But I got an error ERROR: CreateTrigger: function subradio() does not exist What can I do?? A trigger function must have a specific structure, it takes no arguments It can take arguments. and returns trigger. And this is why, I think, the message tells function subradio does not exist. Because there's no subradio function that returns trigger. Besides, trigger functions are supposed to do some processing before or after insert, update or delete operations, so there's no sense in returning a row count. Take a look at the docs, specially chapter 35 and 38.9. Regards. -- Guillaume. http://www.postgresqlfr.org http://dalibo.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] triggers problems whit function
Guillaume Lelarge [EMAIL PROTECTED] writes: Fernando Moreno a écrit : A trigger function must have a specific structure, it takes no arguments It can take arguments. No, it can't. At least not in the declaration. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
