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View Full Version : how to connect to mysql



bhakti_thakkar
02-02-2007, 11:28 AM
hi all ,
till now i was using mysql with apache and php. all is perfectly fine.but now i have started with ruby [just a day old in ruby on rails] and i am stuck up connecting to mysql rather even starting mysql using webrick.i jst dont know how to proceed....mysql 5.0 is installed on another LINUX machine and i even changed the localhost to the IP address of LINUX machine in database.yml file but still when on the command prompt i type the following i get mysql not recognized:
////////////////////////////////////

depot>mysql -u root -p

///////////////////////////////
Settings in database.yml file
development:
adapter: mysql
database: depot_development
username: root
password:
host: LINUX IP ADDRESS

Any help most appreciated. badly stuck. i had even posted the same in mysql section of this forum but i think i shuld have posted here as i think i am failing with some ruby/ rails settings.Please help
Thanks in advance

softsea
02-23-2007, 02:21 PM
example

require "mysql"
my = Mysql::new("host", "user", "passwd", "db")
res = my.query("select * from tbl")
res.each do |row|
col1 = row[0]
col2 = row[1]
end

Janet Kellman
07-08-2007, 03:35 PM
hi all ,
till now i was using mysql with apache and php. all is perfectly fine.but now i have started with ruby [just a day old in ruby on rails] and i am stuck up connecting to mysql rather even starting mysql using webrick.i jst dont know how to proceed....mysql 5.0 is installed on another LINUX machine and i even changed the localhost to the IP address of LINUX machine in database.yml file but still when on the command prompt i type the following i get mysql not recognized:
////////////////////////////////////

depot>mysql -u root -p

///////////////////////////////
Settings in database.yml file
development:
adapter: mysql
database: depot_development
username: root
password:
host: LINUX IP ADDRESS

Any help most appreciated. badly stuck. i had even posted the same in mysql section of this forum but i think i shuld have posted here as i think i am failing with some ruby/ rails settings.Please help
Thanks in advance

mysql not recognized because it's installed on another server.
example of using mysql at ruby wrote softsea, anyway use right host in my = Mysql::new

boboch
11-06-2007, 09:47 AM
To connect from a PHP script, just put this in your file::
<?
mysql_connect("db.YOURDOMAIN", "DBUSERNAME", "DBPASSWORD");
mysql_select_db("DBNAME");
?>
using the same substitutions for the bold terms as above, plus substituting DBPASSWORD with your own mysql password.

Example:


mysql_connect("db.joesmith.com", "joe", "secret");

mysql_select_db("joeydb");



To connect from a perl script, put this in your file::

#!/usr/bin/perl
use DBI;

$database = "DBNAME";
$hostname = "db.YOURDOMAIN";
$port = "3306";
$username = "DBUSERNAME";
$password = 'DBPASSWORD';

$dsn = "DBI:mysql:database=$database;host=$hostname;port=$port";

$dbh = DBI->connect($dsn, $username, $password) or die("Could not connect!");

$sql = "SELECT * FROM mytable";

$sth = $dbh->prepare($sql);
$sth->execute;


while(($column1, $column2) = $sth->fetchrow_array)
{
print "C1 = $column1, C2 = $column2n";
}


$dbh->disconnect;

where DBNAME, DBUSERNAME, and DBPASSWORD are your database name, database username and database password, and where YOURDOMAIN is your website's domain name with no "www." in front, for example, "mysite.com", or if you are not hosting your own domain name with us, then "mysite.modwest.com".



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