MySQL is an open-source, relational database management system.

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2
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261 views

How to let a user choose an authors and save it to the database?

I have a multi-author Wordpress site which reads different rss feeds and posts them to my page. I was wondering if it is possible to make a code that would provide an opportunity to registered user ...
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0answers
37 views

Wordpress Deadlock Error

I see more of this error these days in error_log. I see that someone asked this question here a year ago but no solution. Please advise what is causing this issue. Already, tried deactivating some ...
1
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0answers
51 views

mysql_real_escape_string() vs. esc_sql() in WordPress

Does mysql_real_escape_string() and esc_sql() in WordPress both do the same thing? I tried the following: $fetch_row='<p>And again for single posts</p>' echo mysql_real_escape_string( ...
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0answers
371 views

How to use update and delete query in wordpress

First i write manually update, delete, insert and select query and execute data with mysql_query function Like this: Select query $prefix = $wpdb->prefix; $postSql = "SELECT DISTINCT post_id ...
1
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0answers
118 views

Set Display Name to first and last name (phpmyadmin SQL Query)

I'm trying to change all the users Display Names to be their first and last name. I have looked into a number of plugins and wrote my own PHP to try and accomplish this however the site has over ...
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0answers
165 views

wpdb custom tables without plugin

I am using custom tables, with $wpdb, trying to perform basic queries at the moment. I can't find anything on manually creating tables then using them with $wpdb, everything is plugin related. I ...
1
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0answers
128 views

Slow wp-admin due to “SELECT DISTINCT post_mime_type FROM wp_posts WHERE post_type = 'attachment'”

The media library on a large site is slow in wp-admin. I did some research by looking into slow queries in the sql and found that this query is causing the slow response: SELECT DISTINCT ...
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0answers
24 views

How to migrate the posts from an old custom legacy blog to a new WordPress website?

I have to migrate the posts of a very old custom legacy blog made in ASP (the posts are stored in a MySql table) into a new WordPress blog. So I need your help to find the smartest solution to do it, ...
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261 views

Slow meta_query with about 4 milion record on wp_postmeta

Although optimized wordpress all the way but still very slow as follows : I have converted from LONGTEXT meta_value field to TEXT Then create INDEX for this field ALTER TABLE wp_postmeta ADD INDEX ...
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0answers
224 views

MySql Query very slow

I have a problem with a query on my website. When I load the page it is incredibly slow and only after over 12 seconds the content starts showing. I have installed a debug plugin and found the query ...
1
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0answers
85 views

Calculate average crossing post categories

In my WP database I have some posts i the category hotels and some other posts in the category visits. In the posts (placed in the category visits) there is two meta_fields ( rating and placeid ) ...
1
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0answers
243 views

Renaming admin user on multisite install by MySQL

As part of a general tightening of security, I want to change the name of the admin user on my multisite install to something less commonly used. This user is admin on all five sites in the network ...
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334 views

How to track a users progress through pages by inserting data into Wordpress Database?

My website users can learn British Sign Language through Video Tuts, Quizzes and games etc. I would like to track the users progress through the pages of the course and add that data to a Wordpress ...
1
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0answers
638 views

$wpdb->insert() does not Insert record in a table

I'm trying to understand and get hold of the $wpdb global object but can't seem to make it work. Basically, I'm trying to insert a single record into a custom table in wordpress DB. Instead of ...
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0answers
301 views

Wordpress running SQL query to update database from form

Basically I want to take information in from a form and use a separate php page to update the database. so here is the original wordpress php page (add_person.php): <?php /* Template Name: ...
1
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0answers
379 views

Cleaning up bloated wp_postmeta table by removing multiple _thumbnail_id's?

On a very old site (7 yrs) with a lot of posts (30k) I've been trying to whittle down the database tables. The postmeta table is 1.5m rows, 750k of those rows are for a meta_key named ...
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2k views

How to fix database error duplicate entry

At first I thought this was just a damaged table, so I tried repairing via MySQL, but it appears there's more fundamental issues. Which of the duplicates should I remove, and any further advice in ...
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0answers
129 views

WordPress plugin overloading with tmp tables

I have asked at the plugin's (WordPress Popular Posts) support a few days ago, since no response hope to get some insight or help here. Thanks. Hesitant to tweak settings like max_heap_table_size ...
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0answers
335 views

WordPress Query wp-terms SLOW

I've got a very large database in WordPress with lots of products in WooCommerce along with quite a bit of taxonomies. When querying the products on the front end it takes 1 minute or more. Here is ...
1
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0answers
86 views

Regex to turn embedded images in to attachments

I've got a blog that has all images embedded in each post rather than a thumbnail linking to an attachment page which is what I'd like. I understand from this question that no plugin (like Regenerate ...
1
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0answers
213 views

Query most popular terms by taxonomy over 2 week period

I have written SQL for a query that pulls the most used taxonomy terms for selected taxonomies that are published, do not have a parent post are not in a comma separated list over the past two weeks ...
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0answers
275 views

List authors with the last post title and order by last post date

I want to list authors with last post data and order them by last post date. Now i have this codes but i don`t know how to edit them. // Selects from tables wp_users and wp_posts, selecting published ...
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0answers
64 views

How can I make wordpress suppress mysql errors?

Wordpress has two functions related to SQL queries and their errors as mentioned in What Is The Difference Between suppress_errors() And hide_errors() in $wpdb? From what I've read setting WP_DEBUG ...
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0answers
6 views

Same option_id for 2 options in wp_options?

What does it mean when (according to mySQL Workbench) 2 options have option_id = 0? Just noticed this for unrelated plugin and theme holding very different options.
0
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0answers
21 views

Setting up automated post status change / delete system

Haha, first of all, I've been asking all my WP questions in stackoverflow and then wondered why everybody said they don't know nothing about WP. My question is simple: What's the best way in your ...
0
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0answers
11 views

How to set max users to 17.000

For a website i need a range of user_id's from 10.000 to 17.000 I've already been able to set the minimum, but i'm clueless as how to set the maximum. I've been Googling around for a while now, hoping ...
0
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0answers
17 views

Does WP query update accept variables being built into it?

Trying to figure out if this is a WP specific quirk. The var_dump code shows the correct string to be inserted but the last query dump at the end shows an incomplete query with no variable being ...
0
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0answers
23 views

$wpdb how can i save my postmeta table before querying it

This function is in my functions.php file. The query returns the value I'm looking for via phpmyadmin, but only AFTER the function has been run in WordPress. add_action( 'transition_post_status', ...
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0answers
16 views

MySQL query in Functions.php using inner join to override/add to search

I'm setting up a radial geo-location search. I have users select a zipcode and a radius to search within. I want to use the regular search site.com?/s=abcd&zipcode=90210&radius=10 I look up ...
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0answers
36 views

Create Database Tables on Plugin Activation hook

My function which have code for table creation function hotel_install() { $path=ABSPATH . 'wp-config.php'; require_once ($path); global $wpdb; $charset_collate = ...
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0answers
15 views

Is it important to add Engine while importing database?

I am importing wordpress database sql file, but destination phpmyadmin not allowing to add ENGINE and CHARSET, But without that file imported and ENGINE, CHARSET is by default. Please tell me is it ...
0
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0answers
10 views

Simple SQL Query in wordpress

I want to write a single SQL Query wordpress table wp_options With field name as option_value For table wp_options field, option_value, where i want to get user_id and its all associated images ...
0
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0answers
21 views

include custom fields in search sql query

here is my sql query: add_filter( 'posts_where', 'title_filter', 100000, 2 ); function title_filter($where, &$wp_query){ global $wpdb; if(isset($_GET['s'])){ ...
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0answers
26 views

Passed variable gets undefined variable error on insert on next page

I am passing a variable with $_POST to another page and on the destination page I want to perform an insert operation and want to use that passed value . The variable "$mygroup" is coming from a forms ...
0
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0answers
12 views

Database level import of featured images and link to posts - How?

I have been attempting to import about 50,000 images into 50,000 posts in WP 4.2.2. The _posts table data is all correctly imported already. I know I need to import to _postmeta table and add new ...
0
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0answers
25 views

Post count is wrong in all categories on backend and frontend

Admin area is showing wrong post count for all the categories (and I have 300+) It's showing more posts than they actually are, even for new categories with no posts at all shows like 5 or more. I ...
0
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0answers
27 views

wp_list_table, jquery get the value of the checkbox

Hello i'm trying to make inline edit for my wp_list_table. but i've hit a brick wall. the thing is that each elemement/td is made up off 2 class column example: <td class="name column-name" ...
0
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0answers
11 views

Mysql join 2 columns into 1

Hello i could really use a hand here.. the thing is i want to make 2 tables for a project - 1: Shifts: - which has: id, usr_id, date, start_time, end_time, and pending - 2: shifts_extra: - which ...
0
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0answers
9 views

MYSQL ignore categories on Wordpress widget

I have this WP widget that pulls random products from the DB. What I really want is to be able to include just a few products categories (or exclude). Can anyone help me? I appreciate. <?php ...
0
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0answers
38 views

Delete all wordpress posts from db that matches a certain condition

Am trying to delete all posts from wordpress database, that are X days old and have a particular meta key-value attached to it. So simply something like this(pseudo sql): DELETE FROM `wp_posts` ...
0
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0answers
44 views

Google-App-Engine[PHP]: Error trying to establish database connection

Hi to whom this may interest, I am finding a problem with the cloudsql as database connection is not being established. I have followed the following site step-by-step ...
0
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0answers
26 views

How to fix pagination issue on wordpress

I have a category with 2 subcategories. i have created a custom category template, to show the posts from the subcategories of that category, so it look like that: category page shows: Subcategory ...
0
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0answers
115 views

Count posts of child category in parent category

Hallo Wordpress Comunity, I need your help. I have a Woocommerce shop site with multiple authors. In the sidebar I want to display a list of woocommerce product categories by author (based on posts ...
0
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0answers
32 views

wpdb giving different results then query in SQL Editor

I'm trying to read candidates and the relation with expertises from 2 custom tables in my WP Database. This is my WPDB query : $candidates = $wpdb->get_results(" SELECT * FROM ...
0
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0answers
13 views

Can tables in WordPress Multisite be combined?

I inherited medium size wordpress multi installation. At the time there were only about 20 different sites, each with their own set of database tables. We now have about 120 sites and over 3,200 ...
0
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0answers
91 views

MySql query to retrieve post_title, post_content and feature image link BASED ON A CATEGORY

I have been trying for quite a long time to retrieve post_title, post_content and feature image link for all posts BASED ON A particular CATEGORY, from a wordpress database. I have got a query: ...
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0answers
215 views

Loop through multidimensional array for values, then interest into mySQL table

I have a package of JSON that gives me something like this: [{"a":"5", "b":"9", "c":"3"}] I have a table with with three columns: a, b, c. I want to create entries into the table to match 'a', 'b', ...
0
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0answers
58 views

Term and sub term from custom post type query

I have created a custom post type and taxonomy for a goods catalogue for a hire website. This works fine. I am trying to generate a report that lists all items and their category and sub category. I ...
0
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0answers
68 views

Wordpress 4.2.1 upgrade mysqld spikes in cpu usage

After upgrading to WP 4.2.1 we have encountered some huge problems with site being unresponsive. We have located this as the problem (we think) # Query_time: 13.341332 Lock_time: 0.000054 ...
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0answers
23 views

More efficient remove meta data from posts?

Looking for a better way to do this, bulk remove custom field from all pages with a taxonomy -> people -> term of names. Any thoughts ? This is attached to a single button on a custom admin panel not ...