Обсуждение: how to use variables in postgresql
I HAVE A PROBLEM REGARDING DECLARATION/ INITIALISATION OF VARIABLES IN POSTGRESQL FUNCTIONS AND PROCEDURES. MY CODE PRESENTLY LOOKS LIKE
CREATE FUNCTION ins_into_std_values() RETURNS void AS
$BODY$
myflag CHAR(1) :='y';
dbms_output.put_line('enter the values sequentially');
loop
if myflag='n' then
exit;
end if;
insert into std_values
values('&tree_species_name','&location',&p,&c1,&c2,&q,&c3,&a,&b,&sp_gravity,&exp_factor);
commit;
dbms_output.put_line('records inserted sucessfully');
dbms_output.put_line('enter n to exit or y to continue entering values');
myflag:= '&y or n';
end loop;
commit;
$BODY$
LANGUAGE 'sql' VOLATILE;
BUT IT SHOWS ERROR AT INITIALISATION OF MYFLAG... CAN ANYONE TELL ME HOW TO DECLARE VARIABLES IN POSTGRESQL..
CREATE FUNCTION ins_into_std_values() RETURNS void AS
$BODY$
myflag CHAR(1) :='y';
dbms_output.put_line('enter the values sequentially');
loop
if myflag='n' then
exit;
end if;
insert into std_values
values('&tree_species_name','&location',&p,&c1,&c2,&q,&c3,&a,&b,&sp_gravity,&exp_factor);
commit;
dbms_output.put_line('records inserted sucessfully');
dbms_output.put_line('enter n to exit or y to continue entering values');
myflag:= '&y or n';
end loop;
commit;
$BODY$
LANGUAGE 'sql' VOLATILE;
BUT IT SHOWS ERROR AT INITIALISATION OF MYFLAG... CAN ANYONE TELL ME HOW TO DECLARE VARIABLES IN POSTGRESQL..
am Thu, dem 21.06.2007, um 22:55:38 -0700 mailte saumya goel folgendes: > I HAVE A PROBLEM REGARDING DECLARATION/ INITIALISATION OF VARIABLES IN > POSTGRESQL FUNCTIONS AND PROCEDURES. MY CODE PRESENTLY LOOKS LIKE > CREATE FUNCTION ins_into_std_values() RETURNS void AS > $BODY$ > myflag CHAR(1) :='y'; > ... > $BODY$ > LANGUAGE 'sql' VOLATILE; Use another language, for instance plpgsql. Pure SQL hasn't variables. http://www.postgresql.org/docs/current/interactive/plpgsql.html Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
and use DECLARE ;-) I HAVE A PROBLEM REGARDING DECLARATION/ INITIALISATION OF VARIABLES IN POSTGRESQL FUNCTIONS AND PROCEDURES. MY CODE PRESENTLY LOOKS LIKE CREATE FUNCTION ins_into_std_values() RETURNS void AS $BODY$ DECLARE myflag CHAR(1) :='y'; BEGIN ... END $BODY$ LANGUAGE 'plpgsql' VOLATILE; A. Kretschmer schrieb: > am Thu, dem 21.06.2007, um 22:55:38 -0700 mailte saumya goel folgendes: > >> I HAVE A PROBLEM REGARDING DECLARATION/ INITIALISATION OF VARIABLES IN >> POSTGRESQL FUNCTIONS AND PROCEDURES. MY CODE PRESENTLY LOOKS LIKE >> CREATE FUNCTION ins_into_std_values() RETURNS void AS >> $BODY$ >> myflag CHAR(1) :='y'; >> ... >> $BODY$ >> LANGUAGE 'sql' VOLATILE; >> > > Use another language, for instance plpgsql. Pure SQL hasn't variables. > http://www.postgresql.org/docs/current/interactive/plpgsql.html > > > Andreas >