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

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68 views

prefix table and plugins

I changed my prefix of my tables from the wp_ to something else for security reasons and good practice etc. I was curious most of new plugins installed take on the new prefix but I have one that ...
2
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1answer
270 views

What are these entries in the database? Looks similar to JSON

So I have been wondering for a while now what these entries are and what they do, also what the format of them are. They look similar to JSON but are definitely not JSON. ...
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2answers
72 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 ...
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3answers
4k views

Login in Wordpress using external database data

I have a WP site and also have a external DB (means not WP DB) with users. The insertion process at that table uses the same algorithm as WP uses. What I'm need to do here is login in WP but using ...
2
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2answers
531 views

What's the most efficient database method to add and query usermeta?

What's the most efficient way - concerning the database - to add and query extra usermeta fields to a profile? I need to add four additional fields of numeric and text data to a user profile and then ...
2
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1answer
3k views

How to close wpdb connection?

Is there any method to close connection similar to mysql_close() for wpdb in wordpress? Is it not necessary to close connection for global wpdb?
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2answers
2k views

Updating Wordpress - the best approach (updating wp core, plugins and db)

What is the best approach (steps) to update Wordpress when I have to update all of the following: wp core plugins database I came across this post http://codex.wordpress.org/Updating_WordPress ...
2
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1answer
198 views

Taking WordPress table prefixes into account

Given the code below how would I account for the table prefix that can change from installation to installation? Is there a better way to write it than an SQL query? Is there a variable I've missed ...
2
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1answer
32 views

What are conventions about the schema of the $table_prefix

I wonder if there are any conventions or best practices about the table prefix of any WordPress set up. The official documentation on wordpress.org does not make any statements to that topic. ...
2
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1answer
454 views

Best way to move live site local

I'm trying to move a big site that's currently live onto my local machine so I can edit locally. I'm using Wamp Server. I've tried using the Duplicator plugin but I'm getting several warnings and ...
2
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1answer
54 views

Text snippets shared across posts

I'd like to add a "fast facts" section to a wordpress site - an area in the sidebar where snippets of text are rotated. Where is the best place to store things like this? Widgets don't really allow ...
2
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2answers
782 views

Using Disqus, how to stop storing comments in wp database?

I'm using disqus comments system, but it keeps storing the comments in the wordpress database as well. Is there way to disable option to store comments in wordpress database because I don't see any ...
2
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2answers
4k views

Edit Custom Database Tables in Wordpress

I have a site that uses custom database tables to manage info that is inserted by a process completely independent from Wordpress. The data from the table is used in the Wordpress site but it is not ...
2
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3answers
2k 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 ...
2
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2answers
119 views

The revisions table in my database is at 70% capacity and growing. What should I do?

I installed the Wordpress System Health Plugin and it says that the revisions table in my database is at 70% capacity with 994 rows. I don't fully understand what this means. I anticipate that my ...
2
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2answers
212 views

How to diagnose and keep in check encoding issues?

What we have for a project is: multiple sites (production, test, local development); migrated by multiple methods (PHPMyAdmin, Navicat, BackupBuddy); And the issue we are having is that while ...
2
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1answer
210 views

WP database error for comments_popup_link()

I'm using the comments_popup_link() function to show the number of comments for each post in a loop. <?php if (have_posts()) : while (have_posts()) : the_post(); ?> <?php if ( ...
2
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1answer
787 views

Advice needed for importing custom field data and database structure

Looking for advice for the best method to accomplish the following. I have a custom page template with several custom fields/taxonomy. The data needed for these custom fields actually resides in ...
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1answer
534 views

Corrupt Wordpress Database

The weirdest Wordpress problem ever I think. A clients site with a large database of posts has got a mind of it's own. One minute everything seems fine, the next posts, categories and tags are ...
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2answers
879 views

Where is the old post permalink slug stored?

I published an article with permalink slug: http://domain.com/writing Then after publishing, I changed the permalink slug to writing-lorem. Now, whenever I visit /writing, it redirects to ...
2
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1answer
1k views

Can I use MariaDB instead of MySQL in wordpress?

Is it possible to use MariaDB instead of MySQL in Wordpress installation? If possible: how do I do that? Is there any drawback or complexities?
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1answer
295 views

Exporting Data from WordPress into a flat table

I need to be able to export the data within WordPress so that each object is contained in a single row, like a flat table. Imagine each post type as it's own database table, containing columns that ...
2
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1answer
2k views

Database sync between local and production

I was watching Mark Jaquith's presentation at WCSF 2013 recently and in the Q&A Mark mentioned something about rsync - after a quick Google I can see this is done via SSH - my question is this: is ...
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1answer
125 views

Filter WordPress posts by between parameter

How to filter WordPress posts by a taxonomy and between parameter? Consider a mobile website with "memory size" taxonomy, I need to show posts that have more than 256 mb memory and less than 768 mb. ...
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1answer
2k views

How to increase the character limit for post name of 200?

I have post name in Thai which uses UTF-8 character. Many of them encode into super long in ASCII e.g. วิธีการหลีกเลี่ยงข้อผิดพลาดทั้ง-8-ในชีวิตการแต่งงาน I've changed the type of "post_name" using ...
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2answers
252 views

Relationship between performance and database size

What's the relationship between performance and database size in WordPress? Does a bigger DB mean that my site will be slower? My DB size is currently 360mb. I also noticed that I have some tables ...
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2answers
193 views

Wordpress DB: options-table –> 32 gzipcompression?

I just wondered what this row in the Wordpress Database refers to? 32 gzipcompression 0 I stumbled upon it in the WP options table. What if I set the value to 1. I do already have ...
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2answers
2k views

WordPress Database Charset/Collate

Is there an easy way of getting the charset and collation of the DB tables in WordPress without resorting to SQL queries?
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1answer
976 views

How to use custom post type APIs, but use a different db table

We currently have a plugin that creates a new WP table, but it recreates the wheel when it comes to managing/updating data. It would be a good candidate for custom post types, but we don't want to ...
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2answers
442 views

Database slowdown after update to 3.4.1

I own a wordpress installation, and Updated to 3.4.1. After the upgrade, I got a very strange slowdown to my wordpress. After all, I used the define('SAVEQUERIES', true); in my wp-config.php with ...
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1answer
329 views

Is there a naming convention for database tables created by a plugin?

I have setup my plugin's table to use $wpdb->prefix but aside from that are there any conventions that you should name them; Maybe $wpdb->prefix.'plugin_'.$tablename or something. I can't find ...
2
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1answer
2k views

Split WP install between 2 databases?

Is it possible for Wordpress to work from two databases? The reason I ask is that we're approaching our 100mb limit for database size on our host (1and1) but have up to 100 databases, so what I was ...
2
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1answer
635 views

if statement on database query

Part of a voting script I'm working on: I'm checking a custom table in my WP database to see if a user already voted for a post by checking the IP address and the post id. If the user's IP already ...
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2answers
321 views

Is a direct or import approach safer for migration into WordPress?

We're in the process of migrating a site from an existing CMS system into WordPress. The existing CMS system has no direct integration tools with WordPress. I'm looking into the option of creating ...
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1answer
35 views

WordPress and automated MySQL backups to a different host

I'm having the following setup. A development computer in my local network and a production server with a real internet domain. Developing the PHP/CSS files on my dev computer for my theme is handled ...
2
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2answers
111 views

Shared table across network

Im currently creating a plugin that will read an xml file and import the data into 4 tables on a wordpress multisite. the tables are rather large, with ALOT of columns, so the post table is not ...
2
votes
1answer
746 views

Retrieve featured image (thumbnail) url from multiple posts with one query

I have a list of post ids and need to get all the standard data plus the thumbnail of the posts. As there will be several hundred posts i need an efficient way to retrieve the data, just looping over ...
2
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2answers
95 views

WordPress unresponsive after calling wp_update_comment()

In the admin panel's "Edit Comment" page, for some reason after I click "Update" the Edit page goes into infinite loop/loading (the spinner icon in the Google Chrome tab never stops spinning). My ...
2
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1answer
816 views

Has anyone tried putting PHP ActiveRecord on Wordpress?

I have worked with Ruby on Rails and I was looking for some code that did something close to the wonderfull RoR's ActiveRecord. I stepped by this site. Its PHP-ActiveRecord! I found it amazing, and ...
2
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1answer
27 views

Subscribers to posts

Consider each post to be topic of conversation, and comments a conversation. For now it is fine. I created a post type called conversation. Now I want to list all the conversations a user is in. How ...
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1answer
535 views

Is $wpdb->prepare escaping to much? How to use it properly?

Im pretty much confused by $wpdb->prepare. I want to use it to sanitize user input but it turned out that it destroys the query. I cannot imagine that this is how it's intended to work but I can't ...
2
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1answer
119 views

$wpdb->update has finished saving trigger?

I have a custom table that I am updating via wp_ajax action. I am inserting a row and inserting all of the values other than id which is an AUTO_INCREMENT. I have an ajax response that creates a new ...
2
votes
1answer
564 views

how to show database content in wordpress post

I'm a beginner for WordPress. I have a database app written in PHP and MySQL and I need to convert it to WordPress and also I what to post the database rows info by shortcode were id="x" like: ...
2
votes
1answer
1k views

Bad Request (Invalid Hostname) on working server, database problem

I have a local server up using EasyPHP. I know its working because I have a default wordpress install running and up on my brower. I have a full site which I also know I have working because when I ...
2
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2answers
2k 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
102 views

What is the easiest way to implement cascading database upgrade for my plugin?

Lets assume following situation: I develop a plugin. The plugin requires custom database table to store some kind of information. From month to month I release new versions of my plugin. Different ...
2
votes
2answers
823 views

The plugin generated x characters of unexpected output, $wpdb not defined

I've written a simple Wordpress plugin to create a new database table. The new table ought to be created when the plugin is activated. When I try to activate the plugin, I get the following error: ...
2
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1answer
178 views

Wordpress database growing dramatically in size despite adding no new content

I have an old Wordpress site that I no longer maintain but keep online anyway. I have a cron job setup on the server that backs up the Wordpress database once a month. I am noticing a continuing ...
2
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2answers
4k views

Two WordPress sites sharing the same content

My question is this: Is it possible to have two separate installations of WP with two separate domains sharing the same content? Scenario: User on http://A.mysite.com publishes a post. ...
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2answers
155 views

Is it possible to import a wordpress backup from a single site in to a multi-site configuration?

I have a local development server with WordPress installed (my desktop Linux Mint 12 box). I'd like to use multi-site WordPress to manage my different client projects through one install, but I have a ...