Importing a database from a custom built CMS to WordPress

I’d dump part of the database and see how the posts/pages/ titles, date and other meta is arranged and compare it to WordPress’s DB structure. See http://codex.wordpress.org/Database_Description and http://codex.wordpress.org/Importing_Content for existing importers. Decide what you really need to import and what needs to be generated that is specific to WP. It’s not going to be … Read more

How to export a WordPress blog with no export function?

If you cannot install your own plugins you could set up a separate WordPress installation where you can do that and use the plugin HTML Import 2. From this site you can create a regular export file. You will not get all meta data (tags, categories etc.) though.

Exporting featured image

The way WordPress works is that the files need to be there, but they also need to be registered in the database to be listed in the Media Library. I don’t know the DownML Plugin, but it seems as this is only for backups, not for migrating data as you are trying. What you apparently … Read more

Import subdomain WordPress into main domain WordPress

Your logic and the steps you plan on following look good to me. This is more or less exactly how I would handle the issue. However when you import the XML file from sub.example.com into example.com, you’ll want to check the links to the media files within the newly-imported posts. I believe they are still … Read more

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