Class PgConnection

Description

Interface

Konstructors,Destructors

PgConnection()

The default constructor

PgConnection(const char* conninfo);

it calls connect and throws a PgException, if the connection is bad.

~PgConnection()

the destructor closes the Connection

ConnStatusType Connect(const char* conninfo);

calls mainly PQconnectdb(conninfo), which use reasonable & environment defaults

reset()

calls PQreset, which cleses the connection and opens it again.

Query of the Configuration

const char* DBName()

returns name of the database. It calls PQdb from the libpq.

const char* user()

calls libpq-function PQuser

const char* pass()

calls libpq-function PQpass

const char* host()

calls libpq-function PQhost

const char* port()

calls libpq-function PQport

const char* tty()

calls libpq-function PQtty

const char* options()

calls libpq-function PQoptions

int backendPID()

calls libpq-function PQbackendPID

Subbmitting SQL-Commands

void ExecCommand(const char* query,...);

it is for SQL-commands, where no tuple result is expected.
The string query is processed by sprintf. A PgException is thrown when a error occurs.

PGresult* ExecRetTuples(const char* query,...);

This is for SQL-Commands, where a tuple result is expected.
The string query is processed by sprintf. A PgException is thrown when a error occurs.