Hi.
At first,I think you lack some settings.
(eg. pg_hba.conf,listen_addresses or restarting)
But you say "I can log in to postgresql without password prompt using
the psql tool".
I can image some case,but we have to get some more information.
So I'd like you to try the following program.This program works fine on
my environment.
I believe this test can indicate which makes problem your environment or
your program.
Can you try this?
void GiveUp()
{
fprintf(stderr, "Fatal error\n");
sqlprint();
}
main ()
{
/* declare variables*/
exec sql begin declare section;
char v_datcollate[256];
char id [] = "database";
exec sql end declare section;
exec sql whenever sqlerror do GiveUp();
/*connection*/
exec sql connect to :id;
exec sql set autocommit = on;
exec sql begin work;
/* declare cursor */
exec sql declare c_db cursor for select datcollate from pg_database
where datname=:id;
/*1.select test*/
printf("1.Select test starts!! \n");
exec sql open c_db;
exec sql fetch in c_db into :v_datcollate;
printf("datcollate = %s \n",v_datcollate);
exec sql close c_db;
exec sql disconnect;
return(0);
}
(2010/06/23 3:13), Juba, Salahaldin I. wrote:
I am trying to connect to database using ECPG called 'database' - please see
the code below-. When I am excuting the code I am getting this message
Fatal error
SQL error: could not connect to database "database" on line 22
Fatal error
SQL error: connection "NULL" does not exist on line 23
How can I make the ECPG access my database. I have already configured my
database to trust all local connections and I can log in to postgresql without
password prompt using the psql tool. where did I make a mistake and what are
the configuration I need to do
I am using libecpg 6 and postgresql 8.4.4
Best,
#include<iostream>
using namespace std;
EXEC SQL whenever sqlwarning sqlprint;
EXEC SQL whenever sqlerror do GiveUp();
void GiveUp()
{
fprintf(stderr, "Fatal error\n");
sqlprint();
}
int main()
{
EXEC SQL BEGIN DECLARE SECTION;
char id [] = "database";
EXEC SQL END DECLARE SECTION;
EXEC SQL CONNECT TO :id;
EXEC SQL CREATE USER tom WITH PASSWORD 'myPassword';
EXEC SQL DISCONNECT ALL;
return 0;
}
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