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

learn more… | top users | synonyms

3
votes
2answers
480 views

$wpdb won't insert NULL into table column

When i try something like this $status = NULL; $wpdb->update( 'table', array( 'status' => $status, ), array( 'id' ...
0
votes
1answer
47 views

Cannot update custom database table row

I am trying to update a row in a custom database table by $wpdb->update();. In my opinion my code is right but for some reason my database row doesn't update. Can anyone help me with this? I want ...
0
votes
1answer
18 views

4th Network Site Database Errors?

4th site created but not available in the admin menu or the my sites screen. So the my sites screen /wp-admin/my-sites.php only shows three, not the 4th. The My Sites menu at the top also only shows ...
0
votes
1answer
31 views

How to add data from wordpress tables to new database tables you have created

I'm just learning this database stuff and so I am a bit confused and was hoping someone could push me in the right direction. I have managed to create users in the wp_tables I have created in my ...
0
votes
0answers
286 views

Check if values exists DB

I am getting nutts with this one. I want to check if the email introduced in the form already exists in the database before creating a new record. But for some reason the email is empty at search ...
1
vote
1answer
35 views

Is there a way to run upgrade.php for one blog?

I just ran the auto update to verion 3.9 today, but am having problems with the "Network Update". I seem to have a firewall or network problem with this error : Your server may not be able to ...
4
votes
3answers
7k views

WooCommerce with thousands of products - site is very slow - optimize db queries? [closed]

So far I've got around 8,000 products in my WooCommerce and the product page on the front end takes several seconds to load, even after caching. My VPS host says that I should have multiple ...
3
votes
3answers
92 views

Uploading/Deploying a Multi Site Install

So I was looking to create a multi site for a clients since the goal is to have the same branded theme on several sub domains to deal with different countries (e.g. mysite.com, usa.mysite.com, ...
0
votes
1answer
24 views

how to remove category from database

is there a way to remove the category from the database? I just moving my old wordpress blog (that has the category in url), to new domain (without category). I change everything except the ...
-1
votes
1answer
215 views

Connect to a remote database for wordpress in my own hosting server

Yesterday I had asked this question but it was down voted due to the rules of this forum. Anyway, this is my learning and I really thank to the moderators who down voted this as they helped me to gain ...
0
votes
2answers
69 views

When I click edit on a post, all the content disappear. Does anyone know how to fix this?

I am working on a site: greatlakesecho.org When I try to edit a post, the content just disappears from the visual editor. I am running the latest version of Word Press but this happened on the ...
0
votes
1answer
88 views

delete_option() and update_option() returning false

I know that when delete_option() or update_option() fail to perform their respective database interactions, they return false. Does anyone know why they wouldn't be able to perform these actions? ...
1
vote
0answers
38 views

Is there an atomic way to update_option in Wordpress (to ensure data integrity)?

I want to update an option which is an array by adding a new value, but there's no atomicity or guarantee of data integrity. EXAMPLE //Get the option value (an array) $val = get_option( ...
0
votes
1answer
113 views

How Do I Delete WordPress Posts Older Than 400 Days, From A WordPress Category

I have tried the following phpMyAdmin query in an effort to delete all posts, from wordpress category 378, that are over 400 days old. delete a,b,c,d FROM wp_posts a LEFT JOIN wp_term_relationships b ...
0
votes
1answer
104 views

How Do I Merge Categories With phpMyAdmin

I tried the following phpMyAdmin query to merge my category 112747 into my category 112748: UPDATE wp_term_relationships SET term_taxonomy_id = 112747 WHERE term_taxonomy_id = 112748; It did not ...
0
votes
1answer
84 views

How to set search query for joining two tables in sql?

What's the wrong with this query? SELECT l.company_name,DISTINCT c.sub_cat_name FROM tbl_listing l,tbl_sub_category c WHERE l.company_name LIKE '%cy%' and l.city_id='2' and l.area_id=23 ORDER BY ...
1
vote
1answer
50 views

Why does dbDelta() not catch MysqlErrors?

From what I can see, dbDelta() is designed to suppress database errors that occur during its operation. Generally speaking, this seems to be the case, but New Relic is still reporting MysqlErrors ...
2
votes
1answer
84 views

Detecting errors generated by $wpdb->get_results()

How do I detect errors when using $wpdb->get_results()? For example: $result = $wpdb->get_results("SELECT * FROM this is not a valid query"); The preceding code doesn't generate any exceptions ...
1
vote
0answers
56 views

Delete duplicate rows from wordpress database where a column is duplicate in phpmyadmin

I have a wordpress table like so (phpmyadmin and MySQL) | id | meta_key | meta_value | +----+-----------+------------+ | 1 | import_id | abc | | 2 | import_id | abc | | 3 | ...
0
votes
0answers
45 views

Inserting posts to database

I want to import a bunch of posts directly into the database and I'm wondering how I can do this? I found this script ...
0
votes
0answers
67 views

wp_insert_post another database with custom field

wp_insert_post with the command you want to transfer the contents to another database, I use the following command <?php require('wp-config.php'); $conn = mysql_connect($dbHost, $dbUser, ...
0
votes
1answer
149 views

$wpdb->get_var - What value is returned when zero records are found?

I have the following code: $queryPermission = $wpdb->get_var( $wpdb->prepare("SELECT Active FROM testers WHERE user_id = '$user_id' ")); ...
0
votes
1answer
77 views

single.php not pulling in any data from database

My single.php doesnt seem to be fulling any information through from the database for the current post. here is my single.php code: <?php get_header(); ?> <div class="main-container"> ...
0
votes
2answers
125 views

Installing local to live WP into subdirectory

I am having a bit of trouble moving a local WP site live and into a subdirectory. I want a static homepage for now (index.html in the root folder) while I work on the live site (would be found in ...
0
votes
2answers
73 views

Duplicate domain database to local - How?

I've noticed that my process is rather slow and i'd like to speed it up. I want to be able to duplicate my database from my domain which is blueharlequin.com and work locally thus speeding up the ...
2
votes
2answers
410 views

Should I global $wpdb outside of any of my plugin's functions scope?

I know that the general advice to global variables is to not use them at all. Still, when doing something with the Wordpress database, it is required to do global $wpdb; to access the methods ...
1
vote
1answer
134 views

Wordpress database error - Error in SQL syntax - I can't identify any error?

I am trying to write function that checks whether an email address is stored in my database or not. I've written the following PHP code:: function check_my_users( $email_address ) { global ...
3
votes
4answers
647 views

How many users can WordPress handle?

I want to design a member login site in WP but I have a doubt that is WordPress can handle more than 40000 users on same database? I am not sure about this so I am stooping my work here. So please ...
0
votes
1answer
44 views

Understanding WordPress Search

I am trying to create a custom search similar to the one on totaljobs.com but through a WordPress site. Essentially I would be able to search for both search terms and location simultaneously. The ...
1
vote
1answer
150 views

How to store custom user data on the database?

I'm developing a WP multi-site network which have a goal of 10,000 sub blogs. The site needs to store custom data related to the user. There are additional 20 fields of data for each user. What is the ...
0
votes
1answer
48 views

What is the purpose of storing `siteurl` in database?

Why does WordPress store 'siteurl' and 'home' in the database? It's driving me crazy because I develop locally, deploy to a staging site, AND to a production site, so that's two-three times I have ...
1
vote
1answer
56 views

How to display posts by vote count and if no value continue with latest posts with no votes?

Maybe someone can help me with this. I want to display posts by votes. Users can only vote up. So what I want is - the most voted posts by vote count on top and then latest posts with no votes. The ...
0
votes
0answers
58 views

How to select from a WP table every 10s in a class (OOP)?

I'm trying to select records every ten 10 seconds from columns message and messagetwo from my WordPress table wp_userlogin, but the code is not being executed. I'm calling wp_schedule_event when my ...
20
votes
6answers
21k views

Using wpdb to connect to a separate database

I want to connect wpdb to another database. How do I create the instance and pass it the database name/username/password? Thanks
1
vote
4answers
327 views

Retrieving a Value from a wp-database

why my sql statement is not returning any value.. is this wrong? <?php global $wpdb; $result = $wpdb->get_results($wpdb->prepare("SELECT * FROM ...
0
votes
2answers
293 views

Import External XML

I don't know where to start with this one. I would like to create custom post type which will list properties on clients website. I would like those properties being feed from another ...
1
vote
0answers
23 views

Removing Mutlisite lines stop DB connection

I'm trying to revert my mutlisite to a single site and following a guide it recommends removing the following /*define( 'MULTISITE', true );*/ define( 'MULTISITE', false ); define( ...
1
vote
4answers
3k views

Export wordpress table to excel

I have created PHP scripts before to export a database table to .xls format like this: $select = "SELECT * FROM tracking"; $export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( ) ...
0
votes
0answers
123 views

A plugin is giving me “You do not have sufficient permissions to access this page.” error

I noticed this morning that I was logged off from my site. Whenever I tried to access /wp-admin it gave me a "You do not have sufficient permissions to access this page." error. After an hour of ...
1
vote
1answer
46 views

Access Wordpress database outside of Wordpress

MAIN QUESTION: I am writing a wp plugin. Within it, I have a page located here: http://example.com/wordpress/wp-content/plugins/myplugin/page.php How do I access WP database from this page? Is ...
2
votes
1answer
158 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
votes
1answer
1k 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 ...
5
votes
1answer
212 views

Should I use Transients with W3 Total Cache APC Caching? [closed]

Should I use Transients in my queries like this? <?php if ( ! $my_paged = absint( get_query_var( 'paged' ) ) ) $my_paged = 1; if ( ! $my_query = get_transient( "567recent_$my_paged" ) ) { ...
3
votes
2answers
12k views

Connect to database using wordpress wp-config file

How can I connect to the database using the wp-config.php file ? I'm trying to make a script more Wordpress friendly, and I need to connect to the database, but without installing the script as a ...
1
vote
1answer
250 views

Hello dolly type plugin that allows people to add their own

I am making a plugin that shows a random joke on a custom 404 page via shortcode and it is basically near enough the same as the default hello dolly plugin, where the jokes are hardcoded into the ...
0
votes
0answers
24 views

Save voting stats with Posts 2 Posts

I am working on a website where I make connections from posts to posts with the Wordpress Posts 2 Posts plugin. Now I want my website users can vote whether they think the 2 connected posts are a good ...
-1
votes
1answer
95 views

Remote database -> massive response time increase?

I have nginx web server running newest WordPress and DB server running MySQL 5.6 There is around 90-100ms latency(round-trip delay) between those 2 servers. The problem is that It takes about 5000 ...
1
vote
2answers
46 views

How should I store a log for my plugin

I have a plugin that sends data to a server as part of a transition_post_status action. The server sends a response each time. I want to keep a log of these responses (permanently) that I can display ...
0
votes
4answers
1k views

Multisite database upgrade SSL error

I have upgraded my Multisite setup WordPress to 3.6.1. And after that, when I do Network Upgrade > Database Upgrade it's showing: Warning! Problem updating http://www.example.com/site1. Your ...
1
vote
1answer
2k views

How to create database table, add data, update and delete using wpdb via plugins?

I am just starting out to create plugins with database. I know to create a custom database when activating the plugin. I just want to know whether we can create tables at the front end like adding the ...