wpdb (tag)
| maybe_convert_table_to_utf8mb4() | If a table only contains utf8 or utf8mb4 columns, convert it to utf8mb4. |
| wpdb::delete() | Deletes a row in the table. |
| wpdb::esc_like() | First half of escaping for LIKE special characters % and _ before preparing for MySQL. |
| wpdb::get_col() | Retrieves one column from the database. |
| wpdb::get_col_info() | Retrieves column metadata from the last query. |
| wpdb::get_results() | Retrieves an entire SQL result set from the database (i.e., many rows). |
| wpdb::get_row() | Retrieves one row from the database. |
| wpdb::get_var() | Retrieves one variable from the database. |
| wpdb::insert() | Inserts a row into the table. |
| wpdb::prepare() | Prepares a SQL query for safe execution. |
| wpdb::query() | Performs a MySQL database query, using current database connection. |
| wpdb::replace() | Replaces a row in the table. |
| wpdb::update() | Updates the specified data in the specified row of the DB table. |