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Delete tables from database when deleting plugin ...

    https://wordpress.stackexchange.com/questions/169145/delete-tables-from-database-when-deleting-plugin
    Here is the code: // Delete table when deactivate function my_plugin_remove_database () { global $wpdb; $table_name = "NestoNovo"; $sql = "DROP TABLE IF EXISTS $table_name;"; $wpdb->query ($sql); delete_option ("my_plugin_db_version"); } register_deactivation_hook ( __FILE__, 'my_plugin_remove_database' ); As you can see, this function deletes tables when …

mysql - How to Drop Tables on Uninstall using WordPress ...

    https://stackoverflow.com/questions/20944623/how-to-drop-tables-on-uninstall-using-wordpress
    */ global $wpdb; /* * @var $table_name * name of table to be dropped * prefixed with $wpdb->prefix from the database */ $table_name = $wpdb->prefix . 'table_name_to_be_dropped'; // drop the table from the database. $wpdb->query( "DROP TABLE IF EXISTS $table_name" ); change the "table_name_to_be_dropped" by your table name.

wpdb::tables() Method WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wpdb/tables/
    Returns an array of WordPress tables. Description # Description. Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to override the WordPress users and usermeta tables that would otherwise be determined by the prefix.

wpdb Class WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wpdb/
    // Default usage. $wpdb->delete( 'table', array( 'ID' => 1 ) ); // Using where formatting. $wpdb->delete( 'table', array( 'ID' => 1 ), array( '%d' ) ); Top ↑ Running General Queries # Running General Queries. The query method allows you to execute any SQL query on the WordPress database. It is best used when there is a need for specific, custom, or otherwise complex SQL …

#16228 ($wpdb->query and DROP TABLE) – WordPress Trac

    https://core.trac.wordpress.org/ticket/16228
    westi says it's intentional on the part of the Debug Bar. This is the old @-suppression is evil argument (which I mostly agree with). So I guess we should reopen and push to Future.

wpdb::delete() Method WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wpdb/delete/
    wpdb::delete( 'wp_table', // table to delete from array( 'column1' => 123 // value in column to target for deletion ), array( '%d' // format of value being targeted for deletion ) );

Understanding and using $wpdb object in WordPress - Designmodo

    https://designmodo.com/wpdb-object-wordpress/
    $wpdb->;insert( $wpdb->;postmeta, array( 'post_id' =>; 1, 'meta_key' =>; 'price', 'meta_value' =>; '500' ), array( '%d', '%s', '%s' ) ); The above code inserts a row in the postmeta table with the values for post_id as 1 , meta_key as price and meta_value as …

dbDelta() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/dbdelta/
    function my_theme_drop_table ( $table_name = 'the_name_without_any_prefix' ){ global $wpdb; $table_name_prepared = $wpdb->prefix . $table_name; $the_removal_query = "DROP TABLE IF EXISTS {$table_name_prepared}"; $wpdb->query( $the_removal_query ); } See also https://developer.wordpress.org/plugins/the-basics/uninstall-methods/.

How to create a drop down list with database information ...

    https://www.sitepoint.com/community/t/how-to-create-a-drop-down-list-with-database-information/219826
    Apr 01, 2016 · Hi, I'm trying to create a drop down list with information from a database-table in wordpress. Here is my function where I'm getting information from the table …

wp db tables WP-CLI Command WordPress Developer Resources

    https://developer.wordpress.org/cli/commands/db/tables/
    # List tables for a single site, without shared tables like 'wp_users' $ wp db tables --scope=blog --url=sub.example.com wp_3_posts wp_3_comments wp_3_options wp_3_postmeta wp_3_terms wp_3_term_taxonomy wp_3_term_relationships wp_3_termmeta wp_3_commentmeta # Export only tables for a single site $ wp db export --tables=$(wp db tables --url=sub ...
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