The only things you could clear out like this are transients, temporary options in the database. WP already does this on a cron job, and it’s unlikely to have a big impact. If you don’t mind data loss, revisions might reduce the database size, but that’s highly dependent on what you’ve been doing with the … Read more
Updating is always important. They contain security fixes and other bug fixes. Generally update within the 3.0x considered safe. Moving between 3.x could require some changes and updates to your theme or plugins. I like to take the mantra, better safe than sorry. I would back up your database and anything your wp-content folder (plugins, … Read more
Check in a phpinfo() that the mod_rewrite works. Also refresh the permalinks in the backend. Permalinks works fine, also on Ubuntu 12.10.
On your old site go to Tools > Export in the admin area. You can select what you want to export. In your case “Posts.” Click Download Export File On the new site you’ll go to: Tools > Import > WordPress You’ll have to hit a button to install the core plugin, but you can … Read more
Check all credentials in wp-config.php. And don’t forget about table prefix.
Your issue likely lies somewhere within wp-config.php. You should not need to run any install if your tables already exist, the wp-admin/install.php is only used when no tables are detected with the settings in wp-config.php. Going through parameter by parameter, I’ll give you some idea of what everything is. DB_NAME is the name of the … Read more
This will be brief, because there’s not much to elaborate on. There are two parts to a WordPress site (similar for most websites): the content, and the database. Yes, you can just copy all the files but you’ll also need to do a database dump. Your host will usually have a control panel you can … Read more
You’re damned if you do, and you’re damned if you don’t. But it’s typically better to “do”. I have been working in WordPress support and development for a number of years now – and I can certainly say it’s much better to keep everything up to date. Wait a little bit (2 weeks or so) … Read more
Backup another database with BackUpWordPress plugin [closed]
Related question: How to: Easily Move a WordPress Install from Development to Production?