Either the constructor of Connection, or the Query() method throws an exception of type const char *. You can catch it, by enclosing the calls with try, and adding a catch block, like:
Code:
try {
Connection DbConnection(Host, Database, UserId, Password);
query="select * from the test"; // test is my database
result = DbConnection.Query(query); // perform the required database operation..
}
catch (const char *errmsg)
{
std::cerr << "error message from connection: " << errmsg << "\n";
return 1;
}
Say in unix (AIX) m/c, I am logged in with s1 user and want to start process p1 with user credentials of s2.
I can do manually in this way:
#su - s2
#enter password for s2> somePassword
$ p1
But all this I have to do through a java program. How to pass the password through program.
One... (1 Reply)
Hi all,
I tried writing an .ec program connecting to informix database
from solaris platform Sun 5.7
informix version that i had to used when i compiled the program was 9.21.UC3
the binary when i ported solaris box with informix version 9.40.UC5 i am unable to run that
i am encountering... (0 Replies)
Hi guys
I tried to convert this c++ code to c shell script but there are some bugs and I don't know how to solve it.
This code prints the three variables in decreasing order:
int main()
{
int x,y,z;
cin >> x >> y >>z;
if ( x < y )
if ( x < z )
if ( y < z )
cout << x <<" " <<... (2 Replies)
hey everybody,
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Hello,
Please help me out to execute this perl program:
#!/usr/bin/perl -w
use strict;
use Win32::OLE qw(in with);
use Win32::OLE::Const 'Microsoft Excel';
$Win32::OLE::Warn = 3; # die on errors...
# get already active Excel application or open new
my... (6 Replies)
Hello,
Met a problem when compiling a C++ program from source code without error, but when ran it there was always an error message:
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Hello Friends,
I have written a code for the unisex bathroom which makes a policy that when a woman is in the bathroom only other women may enter, but not men, and vice versa. This program consists of four functions which a user defines but these functions are not properly working while... (4 Replies)
Discussion started by: Ravi Tej
4 Replies
LEARN ABOUT DEBIAN
x11::protocol::connection
Protocol::Connection(3pm) User Contributed Perl Documentation Protocol::Connection(3pm)NAME
X11::Protocol::Connection - Perl module abstract base class for X11 client to server connections
SYNOPSIS
# In connection object module
package X11::Protocol::Connection::CarrierPigeon;
use X11::Protocol::Connection;
@ISA = ('X11::Protocol::Connection');
sub open { ... }
sub give { ... }
sub get { ... }
sub fh { ... }
...
# In program
$connection = X11::Protocol::Connection::CarrierPigeon
->open($host, $display_number);
$x = X11::Protocol->new($connection);
$connection->give($data);
$reply = unpack("I", $connection->get(4));
use IO::Select;
$sel = IO::select->new($connection->fh);
if ($sel->can_read == $connection->fh) ...
DESCRIPTION
This module is an abstract base class for the various X11::Protocol::Connection::* modules that provide connections to X servers for the
X11::Protocol module. It provides stubs for the following methods:
open
$conn = X11::Protocol::Connection::Foo->open($host, $display_num)
Open a connection to the specified display (numbered from 0) on the specified $host.
give
$conn->give($data)
Send the given data to the server. Normally, this method is used only by the protocol module itself.
get
$data = $conn->get($n)
Read $n bytes of data from the server. Normally, this method is used only by the protocol module itself.
fh
$filehandle = $conn->fh
Return an object suitable for use as a filehandle. This is mainly useful for doing select() and other such system calls.
AUTHOR
Stephen McCamant <SMCCAM@cpan.org>.
SEE ALSO perl(1), X11::Protocol, X11::Protocol::Connection::Socket, X11::Protocol::Connection::FileHandle, X11::Protocol::Connection::INETSocket,
X11::Protocol::Connection::UNIXSocket, X11::Protocol::Connection::INETFH, X11::Protocol::Connection::UNIXFH.
perl v5.14.2 2003-01-27 Protocol::Connection(3pm)