Your Query is incorrect. To retrive meta values for triple meta_key you will need 3 different joins using posts meta on posts table. Check code below: // Example value $user_id = 1; // Calculate average post rating for user $ratings_query = $wpdb->get_results( $wpdb->prepare(” SELECT pmeta.meta_value FROM wp_posts LEFT JOIN $wpdb->postmeta AS pmeta ON (pmeta.post_id = … Read more
I should think that you can use phpAdmin Find and Replace where you find “http://www.example.com” and replace with “https://www.example.com“. This should handle all internal linking (if blog, then internal linking as well as images, etc.). It would not cover relative addressing like “//www.example.com”. In the case of WordPress, this would be done on the wp_posts … Read more
Not 100% sure how your DB could get that big. Have you gone through and cleaned out post revisions, old rows in the wp_options table from old plugins, etc?
I found that plugin at wordpress.org: https://wordpress.org/plugins/progress-tracker/ This plugin can track any progress with pages and sub-pages. I’m trying right now add a possibility to work with Custom Post Type. I hope this answer helps you or someone else and put you on track to find a solution for your case.
If you just merge the local DB into the production DB it actually means that your local install is a production as well. The problem is not with the ability to perform merge, the problem is that you don’t have a separation between production staging and dev servers. DB on dev installs are likely to … Read more
How to let a user choose an authors and save it to the database?
WordPress Deadlock Error
Not WordPress related, so I am not sure if I have the right to reply in here, but still increase max_user_connections in my.cnf MySQL configuration file since you are just testing. There are number of causes for running out of connections, the most common ones involving when the Web/App server is creating unexpectedly large numbers … Read more
This is generally not a good idea. See this WordPress database diagram. You need to consider: posts that have categories or tags (terms), their relationships, term meta, and taxonomies posts that have authors (users) posts that have comments things that are actually posts that you might not realise are posts (eg. almost everything in WordPress … Read more
You only have 1 option here, which by most standards isn’t advised. You have to edit a core WordPress file: wp-db.php The reason is that there are no filters to change these and the code is kinda hard-coded. WordPress checks the availability of collation it selects though. If you need it just enough to setup … Read more