pimp my code, a small xdemo
committer: Markus Bröker <mbroeker@largo.homelinux.org>
/**
* $Id: main.c,v 1.1.1.1 2008-04-28 17:32:52 mbroeker Exp $
* $Source: /development/c/database/main.c,v $
*
*/
#include <stdio.h>
#include <string.h>
#include <libpq-fe.h>
int main (int argc, char **argv)
{
char *conninfo;
PGconn *conn;
PGresult *res;
int nFields;
int i;
int j;
conninfo = "dbname=lightintron";
conn = PQconnectdb (conninfo);
if (conn == NULL)
printf ("ERROR\n");
else
printf ("SUCCESS\n");
if (argc != 2)
res = PQexec (conn, "select \"MNr\", \"Name\", \"Vorname\", \"Bemerkungen\" from \"Mitarbeiter\"");
else
res = PQexec (conn, argv[1]);
/*
* first, print out the attribute names
*/
nFields = PQnfields (res);
for (i = 0; i < nFields; i++)
printf ("%-15s", PQfname (res, i));
printf ("\n\n");
/*
* next, print out the rows
*/
for (i = 0; i < PQntuples (res); i++) {
for (j = 0; j < nFields; j++) {
if (!strcmp (PQfname (res, j), "message"))
printf ("\n");
printf ("%-15s", PQgetvalue (res, i, j));
}
printf ("\n");
}
PQclear (res);
PQfinish (conn);
return 0;
}