Problem inserting String into postgresql.

Question

Hello,
I have this code in postgresql:
select merge_db(3, 1, '1901-1-1', '1901-1-1', '1901-1-1', 1, 1, 1, 1, 1, 1 , 1, 'hola', 1);
That calls the function merge_db and inserts data, but it wont work in my java program:
String queryPostgresql = "select merge_db("+ oid +", "+ uid +", to_timestamp("+ etime +"), to_timestamp("+ pstime +"), to_timestamp("+ rstime +"), "+ elapsed +", "+ espera +", "+ numcpu +", "+ numcpu +", "+ memory +", "+ error +", "+ memory +", "+ etiqueta +", "+ finalizado +")";
The main problem is in the field "etiqueta" which is varchar in sql and String in java. It throws "ERROR: the column (content of the variable) does not exist"
Also I'm not completely confident about the timestamp fields, I think they are causing problems too.
This is the merge_db function:
create function merge_db(key int, data1 int, data2 timestamp with time zone , data3 timestamp with time zone, data4 timestamp with time zone, data5 int, data6 int, data7 int, data8 int, data9 int, data10 int, data11 int, data12 text, data13 int) returns void as
$$
begin
loop
update trabajos set time_elapsed = data5 where oid = key;
if found then
return;
end if;
begin insert into trabajos(oid,uid,fecha_fin,fecha_acept,fecha_exec,time_elapsed,espera,ncpu,rec_ncpu,rec_memoria,error,memoria,etiqueta,finalizado) values (key, data1, data2, data3, data4, data5, data6, data7, data8, data9, data10, data11, data12, data13);
return;
exception when unique_violation then
end;
end loop;
end;
$$
language plpgsql;
Thank you!

Answer 1

Here is my code then:
Connection connPostgresql = DriverManager.getConnection(myUrlPostgresql, "database", "pass");
Statement StmtPostgresql = connPostgresql.createStatement();
String queryPostgresql = "select merge_db("+ oid +", "+ uid +", to_timestamp("+ etime +"), to_timestamp("+ pstime +"), to_timestamp("+ rstime +"),
"+ elapsed +", "+ espera +", "+ numcpu +", "+ numcpu +", "+ memory +", "+ error +", "+ memory +", "+ etiqueta +", "+ finalizado +")";
StmtPostgresql.executeUpdate(queryPostgresql);The function in postgresql is this one:
create function merge_db(key int, data1 int, data2 timestamp with time zone , data3 timestamp with time zone,
data4 timestamp with time zone, data5 int, data6 int, data7 int, data8 int, data9 int, data10 int, data11 int, data12 text, data13 int)
returns void as
$$
begin
loop
update trabajos set time_elapsed = data5 where oid = key;
if found then
return;
end if;
begin
insert into trabajos(oid,uid,fecha_fin,fecha_acept,fecha_exec,time_elapsed,espera,ncpu,rec_ncpu,rec_memoria,error,memoria,etiqueta,finalizado)
values (key, data1, data2, data3, data4, data5, data6, data7, data8, data9, data10, data11, data12, data13);
return;
exception when unique_violation then
end;
end loop;
end;
$$
language plpgsql;The problem is when i try to use preparedstatement i won't work and throw that exception.
And another question (I'm a pain in the ass): Java is throwing an exception regarding postgresql that says "org.postgresql.util.PSQLException: A result was returned when none was expected"
Thank you very much.
Edited by: 850264 on 13/04/2011 08:31