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

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Social Wall plugin GETs are filling up httpd logs

Six months ago I set up a WordPress installation for an intranet. It worked fine until a few weeks ago, when the MySQL server started crashing. Perhaps is unrelated, but by looking at the httpd ...
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3answers
37 views

Stumped on migration

I'm migrating a site from my server to a client's Bluehost (ugh) account. I've tried using All In One WP Migrate BackupBuddy manual migration (copying files & exporting a db using WP Migrate DB) ...
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1answer
30 views

UPDATE on SELECT results. A SQL query to swap Author with Meta Box value

I inherited a project where, for some reason, the previous developer make a custom post type for authors and a custom select listing all those authors cpt titles in the post edit screen. This led to a ...
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2answers
24 views

Export only pages and posts with mysql dump

How to export only pages and posts using mysql database to database approach? More precisely: what tables should one select for dump (I suppose wp-posts and wp-post-meta ) is it safe to export only ...
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1answer
29 views

How can I Use 2 databases with one WordPress install

What I'd like to do is have the regular WordPress application run from its regular database, and then have a separate database for a game server which will hold all game data. What I need is to make ...
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20 views

Pass the data from Custom Form in wordpress

How can I get the value from custom form in WordPress and stored into teh database? Here is my form. I used the bootstrap validator for this form. Now, what do I have to do to get data from this form? ...
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1answer
28 views

How to make MySQL search queries with quotes

Hi everybody I run a wordpress based website and I'd like to store the search queries called by users to use them as analytics data to know what's most searched etc... So I have a custom table where ...
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0answers
11 views

Database with mixed collation (utf8mb4 & utf8_general_ci)

Each time I was uploading my WP install from offline to online, I was noticing strange characters in text and digging a bit I have discovered that wp-config.php on the online server was set to define('...
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0answers
15 views

Override $table_prefix only for the options table

The only documentation i found was too obsolete. (https://wordpress.org/support/topic/two-sites-two-themes-one-database-same-content) and this one (Change options table prefix only) doesn't help me. ...
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37 views

How to generate notifications when MySQL data base changes

I am developing a WordPress multisite and I am wondering how I can generate notifications when MySQL database changes? For example the user in site #1 can sell his society. When he selected it, it ...
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0answers
19 views

wpdb->prepare clarification

Is there anything wrong with using wpdb->prepare() to retrieve items from a custom database table? Note how I've used prepare() below, without passing the $type variable through prepare(). I just ...
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0answers
30 views

How to change the capabilities from upper case to lower case, while inserting onto database?

I am trying to insert custom user roles like Student, Teacher and Parent. While inserting the capabilities into the database, it is displaying the role in uppercase. I am not able to fetch the user ...
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13 views

Wordpress database on a separate server [on hold]

This question may be too ambiguous to ask. I need to know if installing MySQL database on a separate server will improve WordPress performance. I already have the server running fast although I didn'...
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1answer
45 views

How to implement WP_List_Table? WP_List_Table giving array instead of a value in listing table

I am trying to implement WP_List_Table for my plugin. I have gone through this tutorial and using its sample plugin. I have installed this plugin and just changed table name and done slightly ...
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0answers
16 views

Sharing tables between 2 different websites based on the same database

I have 2 different websites installed on the same database. The 2 websites are sharing the users tables, but I want them to share the posts tables too. I tried to do it by editing wp-db.php. After ...
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1answer
42 views

How to bulk edit canonical url's in SQL?

I've been assigned to edit the canonical URL's (rel="canonical" found in the head)of about 600 posts on a client's site. Not all of the posts will use the same canonical url. Nor are these 301's or ...
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1answer
39 views

How to connect and insert data in database of wordpress?

On my website, there is a section called "My Ideal plank." It is a form where the user will enter their data and there will be a return message with the type of ideal board for the person. First ...
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0answers
15 views

Trim data before insert?

Recently I use this syntax to input data like below: $STRING_DATA = StrToLower(Trim($input_data)); $wpdb->query ( $wpdb->prepare ( 'SQL SYNTAX WITH PARAMETER STRING', $STRING_DATA ) ); Do I ...
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0answers
34 views

Advanced search query select from custom table

Hope that anyone can help me with this problem. I have 7 columns in my tbl2014wines custom Wordpress table. I am trying to create an advanced search feature that allows users to search by wine_name, ...
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2answers
35 views

'username_exists' still returns an ID even after deleting record from the database?

Is there some kind of MySQL query cache turned on by default or something? I am trying to work on a user import script and I am seeing some strange results from the username_existsfunction after I ...
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1answer
29 views

Help with a $wpdb MySQL Query

I'm wanting to expand on the following query to look at multiple meta_key and meta_value values that have been created with the Advanced Custom Fields (ACF) plugin. e.g. meta_key 'colours_%_colour' ...
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0answers
26 views

INNODB Supports transactions, row-level locking, and foreign keys

When I try to create a table for a plugin (that was dropped in the past) I get the error: #1005 - Can't create table 'database_db.wordpress_popularpostssummary' (errno: -1) (Details…) And the ...
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1answer
44 views

$wpdb->delete column values IN ARRAY()?

I am wondering if this is possible? $wpdb->delete( 'table_name', array('id' => array(1, 2, 3)), array('%d') ); So, in this situation, it should remove 3 rows at once, and call the ...
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1answer
16 views

Add commentmeta custom field to every published comment with SQL

I am trying to add custom commentmeta "likes" with 0 as default value to every posted comment. I have this query but I dont see any error there, but still it doesnt work. Can anyone help me to solve ...
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2answers
24 views

Custom MySQL query to pull out Advanced Custom Fields?

I'm trying to modify the My Wish List plugin so that I can retrieve some custom fields (I'm using the Advanced Custom Fields plugin to create my custom fields in the admin end). The plugin uses the ...
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1answer
24 views

how to get postmeta info based on multiple categories?

I need to get one meta_value from wp_postmeta and I can do it with one category but I'm having problem when using another one. I have: SELECT wp_posts.ID, wp_postmeta.meta_value FROM wp_postmeta ...
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0answers
39 views

Cast woocommerce events date meta_value with wrong format in WP_Query

I'm using woocommerce events plugin to sale tickets in a client site. The client wants to display the next 3 events after today in the home page. I have created this code: $args = array( '...
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3answers
34 views

Can't run database query

I am writing a function to query some information from a custom table in the database. It seems that I am unable to query the database on the field I need. function ch_details_from_id($id) { ...
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1answer
47 views

Wordpress Database lost auto increment

After rolling back a Wordpress database to a backup version it seems that all the tables lost their auto_increment on the primary key columns. I read on another post this could be to do with InnoDB ...
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1answer
36 views

Is there a way to get 3+ dimensional array from a single MySql command

For example an array that has all the months, inside each month are all the users registered that month, and details on every user. I could solve it by simply searching for all users registered this ...
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1answer
14 views

Query does not filter duplicate _sku numbers

I need to find ALL the post_id in table wp_postmeta that has duplicate sku numbers. I did this with following sql query but the query is not complete. Now I get the full list of all products as result....
1
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1answer
19 views

Can I transfer a mysql database to another site?

I've been playing around with WP for about 2 years so I know my way around, but I'm kinda new to working with databases. I've been making sites not relying on a database too much. However, I have a ...
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1answer
19 views

Custom SELECT Query not returning the_title and the_permalink

I have written a code that splits the title of the posts into words and a custom SELECT Query searches each word for the posts so that I could show better related posts under the single post. I have ...
3
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2answers
137 views

Search & Remove Specific Shortcode From All Posts

Question Is there a way to remove a specific shortcode, say [print_me] from all the posts where it appears in one shot. And I don't mean mask it or filter it so it doesn't show up while it stays in ...
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1answer
34 views

WP Meta Query - mixed AND / OR query doesn't work

I am absolutely boggled by this one. I am creating a search function for a property site - simple enough. Simple queries such as max_price, max_beds, rent_or_buy work ok. But I am trying to create a ...
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0answers
27 views

upgraded a MySQL 5.1 database to 5.5 and now my wordpress site wont connect

I was upgrading my package with my ISP and they told me to export mySQL database create a new one and import the data via PhpMyAdmin. They neglected to mention that the new database would be ...
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1answer
33 views

SQL error #1062 - Duplicate entry '1' for key 'PRIMARY' [closed]

When I want to import database, I get the next error: Error SQL query: -- -- Dumping data for table wp_comments -- INSERT INTO wp_comments ( comment_ID , comment_post_ID , comment_author , ...
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1answer
18 views

Missing latest posts and options after DB migration via phpMyAdmin

The latest posts and options are not appearing after importing the database. I'm missing all the latest posts and the latest Advanced Custom Fields. The export is from the remote server and import to ...
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1answer
27 views

Remove Featured Image based on Date

I have an issue I can't seem to fold a solution for. I'm looking for a way to mass remove the featured images of posts older than X amount of days. 150 days is my target but if I can set it to ...
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0answers
27 views

Database collation and char set issue

I attempted to import my WordPress website from local host to live server online and i get an error #1115: that i have wrong db collation of utf8mb4. So i googled and changed the cllation to ...
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1answer
32 views

Wordpress Multisite with thousands of blog

I'm setting up a wordpress site where each user will need to have their own blog. My thought was it's the perfect use case of Wordpress Multisite. I've setup it with multisite using Sub-directory and ...
0
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0answers
22 views

After Submitting Form Successfully, The Values Not Stored In Wordpress Database

<?php /** * * Template Name: xoneform * */ echo "Welcome to Xone Form"; ?> <?php print_r($_POST); if ( isset( $_POST['submit'] ) ){ $insert = $wpdb->insert( 'wp_xone_form', ...
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1answer
26 views

Use variable in SQL statement

I have this: <?php $jerseys = $wpdb->get_results("SELECT order_item_id, order_id FROM wp_woocommerce_order_items WHERE order_item_name = 'Mystery Jersey'"); echo "<p>Jerseys</p>"; ...
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1answer
23 views

Weird characters displayed when importing WordPress MySQL db

I was thinking that it may be the collation, but I have no way of know what the production db collation is. The local one has been changed between UTF8_bin and UTF8_general_ci, to no avail. I'm seeing ...
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1answer
63 views

Restore woocommerce orders

Recently my server team replaced my database and they put our previous Database . So we lost our order details of one day[particular day] . Now the server team give the backup that contain the lost ...
0
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2answers
46 views

How to get Attachments(image) with specific width\height ratio

I need to get attachment images with horizontal orientation. I tried to use Meta_Query but I don't know how to compare two values (width and height) from one associative array that is in wp_postmeta ...
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0answers
37 views

Query can not search data with space?

I have following code $wpdb->get_results( 'SELECT * FROM '.$device_token_table.' WHERE user_pushtoken="'.$server_method['user_pushtoken'].'" AND user_id = '.$user_id,ARRAY_A ); print_r($wpdb->...
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0answers
32 views

Join Wordpress databases from 2 different installs

I'm just now getting into SQL and the core of Wordpress (PHP). So I'm not an experienced WP developer but not intimidated by the tools. But, if the answers could be dummied down a bit would be very ...
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1answer
31 views

How to add query vars with paginated URLs?

How I can insert some custom url parameters to pagination links? the code below display like page.php?cpage=2 But I would like to add a parameter category with value fruit. So, the final url will ...
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0answers
31 views

WP_Query order by number of likes

I'm trying to configure WP_Query to order by number of likes. I have a custom table called 'likes', which records which liker (user ID) likes which post: id | liker | post_id 1 | 11 | 120 2 ...