From: | Madhurima Das <madhurima(dot)das(at)gmail(dot)com> |
---|---|
To: | pgsql-students(at)postgresql(dot)org |
Subject: | Using C++ to access Postgresql database |
Date: | 2014-02-03 19:04:06 |
Message-ID: | CAMsahj3k2LRErHYtfRymfQmSKuDhxQEt0wiWeOaTqdzeY=CcQA@mail.gmail.com |
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Lists: | pgsql-students |
Hi,
I am a beginner in Postgresql and trying to write a C++ program to connect
a database and retrieve information from a database.
I have downloaded Postgresql 9.3 in my MAC laptop and could create a
database XXX with a user YYY and password ZZZ. I can create, modify etc
using the pgAdmin3 tool.
Next, I tried connecting the database using a sample code:
#include <iostream>
#include <pqxx/pqxx>
using namespace std;
using namespace pqxx;
int main(int argc, char* argv[])
{
try{
connection C("dbname=XXX user=YYY password=ZZZ \
hostaddr=127.0.0.1 port=5432");
if (C.is_open()) {
cout << "Opened database successfully: " << C.dbname() << endl;
} else {
cout << "Can't open database" << endl;
return 1;
}
C.disconnect ();
}catch (const std::exception &e){
cerr << e.what() << std::endl;
return 1;
}
}
However, the output says: error: pqxx/pqxx: No such file or directory
When I try to install pqxx, I get configure error as:
PostgreSQL configuration script pg_config not found. Make sure this is in
your
command path before configuring. Without it, the configure script has no
way to
find the right location for the libpq library and its headers.
I am unable to find this file. The path of my Postgresql is
$ ps auxw | grep postgres | grep -- -D
postgres 70 0.0 0.0 2594280 444 ?? Ss 9:17AM 0:00.11
/Library/PostgreSQL/9.3/bin/postmaster -D/Library/PostgreSQL/9.3/data
I would appreciate your help in solving my problem.
Thanks for your patience!!
Regards
Madhurima
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