I have a WordPress blog at my domain, so it's installed at http://xyz.com/123. It's installed on the server in that subdirectory, but is assigned its own domain, 123.com. Works great, no problem.
Now I want use WordPress for my main site, xyz.com. I understand to install the files into the root directory. My question is about the MySQL databases. Do I need to create another database? The readme file says:
// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'wp_';
I don't understand what this means. I think I'm talking about a multiple installation. Where does that prefix go?
Any help is appreciated.