I'm writing a shortcode function that will pull pieces of data from a custom table and format it into displayable html inside a post.
I want to be able to pull the data in different ways multiple times so writing a shortcode function to do the "retrieval" is fine. And i know to use $wpdb for this and got that all down. no problems there.
In terms of the data itself, Can I just add it manually using phpmyadmin or any other client? Do I need add data to the custom table in any special way? Is this unsafe in terms of integrity etc?