WordPress stores user generated content, along with other configurable information, in a a database (typically MySQL).

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461 views

“MySQL server has gone away” since update to 3.8

I have a WordPress install on a dedicated server with decent memory (upwards of 8GB). The WordPress install includes many plugins - 50 active plugins. Most important to note is the WPML plugin to ...
0
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0answers
57 views

Get fatal error when using wpdb in jQuery.post target URL

Why am I getting a Fatal error whenever I use wpdb in the target URL of my jQuery.post? Here is my code so far. My process.php is this: <?php $to = 'myemail@gmail.com'; $subject = ...
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1answer
204 views

insert image alongwith with custom data via a frontend form

I use wordpress as a cms. I wanted to insert custom data via a form from the frontend in my wordpress site and then echo it on a page somewhere. After learning from here and there I am able to put ...
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0answers
22 views

Every time I update or install a plugin I get “Error Establishing a Database Connection in WordPress”

At first I thought it was a resource issue because I'm only using the lowest AWS ec2 instance, but now I think it might be something else. I Google'd about a bit as it seems to be a common problem ...
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0answers
40 views

Perform database function in target URL using jQuery.post

I have a popup which gets the users input (name and email) and sends it to a process.php so I can send an email. I pretty much have that done. But I need to add a functionality wherein it will also ...
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0answers
65 views

Querying the DB to get sum of column from custom meta box (only published posts)

I am trying to get the SUM total of a custom meta box, from all published posts, from a custom post type. By using $wpdb I am able to get the sum from all of the posts (published and otherwise), but ...
0
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1answer
35 views

Plugins in WP_Options but not Active

Just completed a WordPress host migration. I had to disable plugins by deleting them in the WP_Options table. I have just added the correct plugins back into the db. However, the plugins are not ...
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0answers
32 views

Moving WordPress site to a new server - Admin not loading

I'm trying to move a WordPress Database from one server to another. I've done this a few times with other sites and servers and I use Sublime to do the find and replace and I've had no issues up to ...
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2answers
31 views

Make changes of wp-db.php file persistent against updates

I've added $this->query("set session wait_timeout=600"); into wp-includes/wp-db.php file because of "MySQL has gone away" errors in every query and I need to find some way to do the changes in file ...
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5answers
5k views

Will it break my site if I delete all transient records in wp_options table?

My site currently has an outrageous 500k+ transient records in the wp_options table. This causes the table to be crashed frequently and so be my site. I thought transient records will all expired ...
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1answer
326 views

Share DB tables between two blogs on the same WP Multisite installation

Is it possible for two separate blogs running on the same multisite installation to share tables in the database? By default, Wordpress adds the blog ID to the table prefix for all of the associated ...
1
vote
1answer
44 views

Wordpress not reflecting changed of the database

my problems started when I moved my website to another folder (from /dev/ to /). I have gone through the whole database in order to change all the hardcoded /dev/ into / but I still notice that ...
2
votes
2answers
675 views

How to modify post content before writing to database?

Hi~ I'm back again and I'm trying to add another function to the script I was working on a plugin that notify my friends of new post that mentions(@) them. Now I want to change the plain text of my ...
2
votes
1answer
56 views

Is there a shortcut to change bulk BMP images to JPG images in a site?

Images in WordPress posts, as I understand, are uploaded manually. They are uploaded by default to uploads folder. A client of mine reported that, in one of his site, he uploaded all the images in BMP ...
0
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1answer
70 views

How can I create blog specific database table in multisite?

I am creating a plugin, that supposed to work on WP multisite yesterday. I've installed WP multisite on my server. While testing I found out that register_activation_hook created 1 table on the main ...
5
votes
1answer
232 views

Slow wp_term_relationships query

I'm running a large WP instance (currently has 28,000+ posts in custom types) and have been experiencing some odd slowdowns. Upon analyzing the MySQL slow query log, one of the problem queries is: ...
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1answer
21 views

WP Posts Not Adding Up

My WP is hosted at Yahoo I am running WP 3.5.2 and the Posts Page does not add up All (4,356) | Published (629) | Sticky (1) | Drafts (265) | Private (88) WP seems to have an extra 3373 posts. I ...
13
votes
4answers
6k views

Post meta vs separate database tables

When developing plugins that requires data storage, what's the pros and cons of using one method or another ? The explanation given in the codex is not detailed: Before jumping in with a whole ...
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0answers
39 views

Move out of sync posts from one database to another

I have an issue where the following has occurred: WP install is pointing to database server 1. Database server 1 is backed up. Database from DB server 2 is restored onto DB server 1. I need to get ...
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0answers
38 views

Blog Not Loading, Can't Access Admin Page, No Trace of WordPress on Server

I recently took over as the webmaster for a small company, and I was asked to figure out what's going on with the company's blog, which uses WordPress. Essentially, the blog won't load, and this ...
0
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0answers
32 views

How Can I Put Meta_Compare in the Database-Query?

Yes, I know that this can easily be done with built in wp_query but I need this in Wpdb query. I have a custom field and I need to display posts where this field does not exist. By the way can I get ...
0
votes
1answer
25 views

Image link issues after importing a database backup to my local web server

I am pretty new in WP (I came from Joomla) and I have the following problem trying to import an old WP blog (made using WP 3.5) on my local web server. I have put the old blog foder into my www ...
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1answer
247 views

what is the use of /wp-includes/SimplePie?

I have this location on my server. /home/localhost/public_html/wp-includes/SimplePie. I have not installed samplepie plugin. What is it used for since it is not associated with samplepie plugin. The ...
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2answers
107 views

Why does $wpdb return strings for mysql integer values?

I find it very inconvenient and hard to understand that the default behavior of the Wordpress db-interface is to convert all integer (and float?) types to strings. e.g $wp_posts = ...
15
votes
3answers
6k views

MySQL Database User: Which Privileges are needed?

The short installation instruction for WordPress ("5 Minutes") state that: Create a database for WordPress on your web server, as well as a MySQL user who has all privileges for accessing and ...
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1answer
37 views

How to interact with another wordpress install on same database?

I am trying to figure out how I can have two WordPress installations on same database with different prefixes ( wp_ and wp2_ ) and I need them to interact with each other. For example I have a Blog ...
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3answers
5k views

wpdb->prepare and mysql UPDATE - how is it done?

Trying to set a 'removed' date time in a plugin query but I'm not sure how to use UPDATE SET with $wpdb->prepare. Here's my query: $cur_date = date('Y-m-d G:i:s'); $rows_affected = ...
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votes
2answers
214 views

Search and replace special characters (å,ä,ö) for image attachments only in database

I need to replace the special characters å,ä,ö (with a or o) in my WP database for all image attachments. How can I apply this search and replace only to affect these links? Edit: Solved
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1answer
73 views

Using custom post types WordPress network

Working on a project I am setting up a WordPress network containing sites/blogs for small shops. I would like to use 2 custom post types in the following way: A location post type; The blog admin can ...
0
votes
1answer
72 views

multiple wordpress installs w/shared user database but separate content databases

Is it possible to have two wordpress installs, one at the main address and one at a subdomain, with a shared user database but totally different/separate content databases? For example: ...
0
votes
1answer
46 views

Size article thumbnails and retrieve them directly from database

I've integrated the Wordpress database directly with my .NET application. What I want is to set the featured image of a post. This featured image must be maximum 800pixels wide, and automatically ...
0
votes
1answer
49 views

How to change images size after theme modification?

The images in the previous theme were using a height and width listed in the source html. The new theme will resize the images using percentages, so I need to remove all the height and width in the ...
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vote
1answer
34 views

How to disable (get rid of) home page main loop entirely?

I'm using a custom theme, the index page doesn't depend on the main loop for home (which by default get the latest 10 posts for example). How can I get rid of the home loop entirely, so the index ...
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0answers
50 views

Why does my WordPress front-end categories plugin gives me a database error with my SQL syntax?

A few years back I created a plugin based off of an answer here: How do I create a way for users to assign categories to a post from the frontend? Here's a pastebin of the modified plugin: ...
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2answers
37 views

WordPress Backup

I'm learning how to backup right now and I'd like some validation. From what I understood, to fully backup my Wordpress I need two things. One backup for my database and another for theme files. The ...
2
votes
1answer
2k views

Check if post of title already exists

I'm writing a plugin that takes an xml feed and posts it into WordPress using wp-cron Everything is working dandy, except it keeps adding the same posts over again. So, I'm working on a system to ...
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vote
3answers
1k views

Import 10,000 Users into Wordpress WITH a specific ID for each user

I have a website which has about 10,000 users. I am converting this site over to Wordpress. The new site is ready to roll, but I have to bring over all the users. There are a number of plugins ...
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0answers
36 views

Download user generated data from Wordpress

I have created a Wordpress site which I allow users to enter information about themselves such as name, age, sex and address etc. Now that I have this n formation I would like to know the steps I ...
0
votes
1answer
207 views

add featured image dialog box disappear

I have a test site here (with WordPress 3.2.1) Since I activate the multisite support, the add featured image disappear. I try to deactivate all the plugin and activate the default theme (twenty ...
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2answers
1k views

How to use “TRUNCATE TABLE” MySQL statement?

I have tried dbDelta and $wpdb->query, they does not work. Does anyone has any ideas?
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0answers
93 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
votes
1answer
38 views

how to add limit records in wordpress query

I have this query which is returning the all records from database whose type is equal to 'quote2'. No I want to know how to limit the record. I mean I just want to show last 10 records added in the ...
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vote
0answers
267 views

Easiest Way to Authenticate WP Users Using an External DB?

I have been looking for the best/easiest way to share users on a WP blog (in a subfolder) with the MAIN site's user database so that people do not have to register/log in on the WP blog when already ...
0
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1answer
41 views

Querying multiple meta_keys in Wordpress SQL query

Here's my Query... I'm looking to narrow this query down to users of one specific role ("meta_key = 'wp_capabilities' AND meta_value = 'employee'")...how do I add that additional conditional to this ...
0
votes
1answer
76 views

How to display data from db in select list [closed]

I wonder what it's wrong in my code. I can't get all of data in column "adres". In result I only have the lest record. Thanks for help. global $wpdb; $result = $wpdb->get_results ("SELECT ...
0
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0answers
29 views

How do I authenticate/turn off a plugin remotely for plugin SaaS like functionality?

I have a client whom we created a custom plugin for. We are charging monthly for access to this plugin but the only way we have to disable it is manually in the Wordpress admin. How would I go about ...
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0answers
39 views

Broken Images After DB Name Change

I have a problem I have been unsuccessful in troubleshooting or finding other questions and answers for. My site was displaying fine. I changed the name of my database from "mydomain_beta" to ...
5
votes
1answer
192 views

How can I safely increase the character limit for post passwords?

When I want to protect a post on one of my blogs, I like to use a passphrase instead of a password (albeit purely for the sake of creativity, not security — they're stored plainly anyway). However, ...
0
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1answer
132 views

How to fetch records from database WordPress

index.php: <?php $new=$wpdb->query("select * from wp_posts where post_title='Auto Draft'"); $new1=mysql_fetch_row($new); echo $new1[0]; ?> How to fetch record from database? How ...
0
votes
1answer
58 views

Getting data from a table using a query

I’m starting with WordPress and I have a lot of problems and doubts. I’m trying to display on a page data stored in a table of my database. I have a table named Customers (id, name, surname, phone). ...