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

learn more… | top users | synonyms

0
votes
2answers
3k views

Delete tables from database when deleting plugin

I created a plugin and want to add a function to delete my tables from the database when a user deletes my plugin. I created a function that deletes tables from the DB when a user deactivates my ...
2
votes
1answer
277 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. ...
0
votes
3answers
914 views

Reset/Reorder posts ID in the MySQL wp_posts table

I have a Wordpress site that is considerably popular. I am in the process of optimizing the site before adding other plugins such as the WPML plugin which I suspect will be using custom post types. ...
1
vote
1answer
1k views

Select data from database and list it in Loop (Wordpress)

your Answear helped me but i stuck again. here is what i have done now : <?PHP define( 'WP_USE_THEMES', false ); get_header(); global $wpdb; $sql = "SELECT vehicle_id, manufacturer, series, ...
0
votes
0answers
749 views

Get results from wordpress data custom table

Firstly i created a custom table into the wpdb : global $wpdb; $table_name = $wpdb->prefix . 'countdown_table'; $sql = ' `id` int(11) NOT NULL AUTO_INCREMENT, `styleName` varchar(255) ...
0
votes
1answer
69 views

I moved my site to another server, wp admin works so does the front page, but posts don't work

Pretty much summed up everything in the title. I can see the posts in wp admin, but when I hit the "View" link they return a 404 not found. Do you have any idea why this is happening? As a note: I ...
0
votes
1answer
106 views

Options table - where does my values go?

I just got my hand into wordpress and wp theme development. I know to create basic wordpress themes from scratch but I wondered how to get into custom theme options. My custom theme options (custom ...
0
votes
2answers
204 views

Multiple instance of data in plugin custom database table on plugin activation

I'm creating a plugin that adds some data to a custom table created by my plugin on plugin activations. I also created a settings page with a form that users can insert their own data to the ...
0
votes
1answer
31 views

Is it risky if I update all url in the database due to my site url changed?

Let's say I have a wordpress site on a subdomain. Initially, I created the site with "www." >>> www.mysite.mainsite.com Now, I'd like to change site url to only mysite.mainsite.com without www ...
2
votes
1answer
320 views

What's the database relationship between a post and its attachments

I'm creating a custom import script to migrate CSV data into wordpress. Each post has a series of attachments that must come with it. Following chapter 14 (importing via a custom mysql script) in the ...
0
votes
1answer
311 views

importing data into wordpress db

Hi I am currently using wordpress 4.0 multisite(bitnami multisite stack) and am using WPMU directory plugin to create business reviews directory. Have some custom fields created using custompress ...
0
votes
1answer
56 views

How to fetch results from database

I'm attempting to customize a wordpress theme. I've added custom field cp_job with form submission. This indicates if the ad is either Buyer(Buying services) or Seller(selling services), which is now ...
0
votes
0answers
99 views

Any way to calculate distance between 2 addresses based on custom fields?

I'm working on a directory database theme, and I wonder if there is any way to calculate distance between 2 addresses or lat/long.... It can be a straight line calculation, and direction (bearing) ...
0
votes
1answer
125 views

How to have WP Search widget index dynamically generated content?

I'm working on an adoption site and the company has a database that contains all their adoptive families. I have a page that contains a small line of shortcode which pulls every family within the ...
0
votes
0answers
70 views

Unable to replace text string across site

There is a text string (a little over 1000 characters with spaces) that needs to be replaced across the entire of my website. The text recurs over 300 times on my site, is identical, and was been ...
1
vote
1answer
2k views

$wpdb variable throw this error Call to a member function get_results() on a non-object in

I've this error "Call to a member function get_results() on a non-object in" from this code: require_once($_SERVER['DOCUMENT_ROOT'] . $folder . '/wp-config.php'); ...
0
votes
0answers
63 views

Preventing concurrent update of data

I have to implement the update of some metadata. An algorithm try alter some global variables in order to minimize a global error function. This algorithm is triggered by users who ratings each other. ...
0
votes
1answer
151 views

List of ways to access WordPress database?

I'm trying to get a complete understanding of how WordPress works with databases. I've read the documentation but I'm getting confused by all the different approaches available. So far my ...
2
votes
2answers
104 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 ...
0
votes
1answer
140 views

How to sort results from a custom database table

I've created a custom WordPress database table which I'm using to store 'likes'. The columns I have are: id post_id user_id I'm now trying to get an array of post IDs that a particular user has ...
2
votes
1answer
499 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 ...
3
votes
1answer
474 views

Improve or optimize a very slow query

I have a fairly large database - 113,299 rows in wp_posts and 216,0649 rows in wp_postmeta. There is one custom query that I run after a post is added or edited, which appears in MySQL's slow-log ...
0
votes
1answer
952 views

Create page with custom php script and fetched data

I created WP page and I need to show a table with some information. This information is hold in a database (hosted on the same server). To be more detailed, I'll try to split my question. I'm new to ...
0
votes
1answer
32 views

Which is less DB intensive in the loop: custom taxonomies or meta fields?

If I'm checking for a certain variable for each post in the loop, is it less DB intensive to specify that variable using custom taxonomies or meta fields?
0
votes
1answer
31 views

Should I use an additional column in the DB?

I'm building a site for a client. They need a functionality where WordPress can tell if a logged in user has viewed a post in order that they might serve a notice or hide the original content. I ...
0
votes
0answers
4 views

Is it possible to use multiple sub domains using only one WordPress install [closed]

I'm helping a friend of mine with his website, he's an artist and he makes music and films. He wants to have 2 separate websites using sub domains e.g: music.example.com films.example.com I want ...
0
votes
1answer
343 views

Migrating Multisite - Database error, missing wp_blogs table

I am trying to duplicate my WordPress multisite on local with Xampp, but I get error. This are the steps I follow(I will use example instead of my website name): Copy all WordPress 4.0 files to ...
0
votes
1answer
103 views

No users table in WordPress's database

I am inside a database and there is no users table in it. Is it possible that the site running using WordPress has no users table? Please guide. Thanks.
1
vote
0answers
51 views

Store partial database to an archive database time to time

As the community knows me that I'm not a PHP Developer by core, but trying to be one. With the company I'm working, I developed many WordPress powered News Portals, where- They publish at least 30 - ...
0
votes
2answers
60 views

When creating a metabox do you have to create DB fields for the data?

I'm just getting to grips with metaboxes for the first time and after reading up on them one of the main question i have is do you need to specify fields in the DB to store the data got input. i.e. if ...
0
votes
1answer
117 views

How to write to wp-users table

I'm trying to modify a login plugin to make new users to to enter the display name to show on the site when they register. I know that the display name is located in the wp-users table of the ...
0
votes
0answers
312 views

Manipulate database of WordPress site with my own scripts

I love WordPress as it provides plenty of great themes, good SEO and overall content management. But I'm not always happy with WordPress's original "Add post" and "Edit post" features as it required ...
0
votes
1answer
358 views

How to share User Database between Two Multisite Installations + More

My situation is a bit different to the other questions/answers I have read online here. Currently I have a Wordpress Multisite Installation on Server A. Server A is almost full in terms of ...
0
votes
2answers
4k views

Inserting data into custom tables

I am trying to create custom input tables to send data into custom tables on the wp database. I cannot get my script to do anything. The user will enter a type of liquor, like vodka or whiskey, ...
0
votes
1answer
26 views

Outputting query results

I am trying to make plugin, and i followed codex, i am not a OOP literate, hence i a blank. I tried to run this query $myrows = $wpdb->get_results( "SELECT question FROM wp_quiz" ); while i tried ...
0
votes
1answer
236 views

Is removing orphaned wp_postmeta records safe?

I am using woocommerce as a shopping cart on a wordpress site. Products and Product Variations are each stored as records in the wp_posts table. Each of these Variations have aprox. 15-20 associated ...
1
vote
1answer
1k views

How to create bulk page and content? [closed]

I am creating a website about cars. I want to have a page for each car, with subpages (i.e. Gallery, Specs, etc...) for each car page. I have the content on my hard drive for each car. Doing this ...
0
votes
2answers
2k views

Storing textbox values in Database

I am new to WordPress but I am good with PHP programmings, if I wanted to get value from the textbox and store it in the database in WordPress can I do? for ex form1.html <form name="form" ...
0
votes
1answer
232 views

How does Wordpress store data?

I have looked inside Wordpress database. Example: In wp_options table, option_name column, active_plugins row, its option_value is ...
1
vote
1answer
131 views

How to prevent/delay MySQL connections when an object cache is used?

We are using an object cache backed by memcached, however I think that WordPress will still connect to MySQL on every page load, which shouldn't be needed if all queries can be handled by the object ...
0
votes
1answer
69 views

Images not showing after moving site

I've tried all the options suggested in other similar questions, and I'm stuck. My images are not showing after moving a site from my local machine to another server. I've searched the database, and ...
0
votes
1answer
42 views

Function to get the name in database table from the comma separated string

I already created admin column in WP using this code: add_filter('manage_pages_columns', 'page_custom_cols', 10); function page_custom_cols($pages_columns, $post_type) { $pages_columns['user_group'] ...
0
votes
1answer
94 views

Help With a Large Wordpress Based MySQL Database on Shared Hosting

I have close to 500K posts in my WordPress database. The site is not yet live, I have the data on my local computer. I was reading about the WOrdpress' https://wordpress.org/plugins/hyperdb/ plugin ...
0
votes
2answers
4k views

How To Get Some Data From WordPress Database Using WordPress $wpdb Query?

I am trying to get some data from WordPress database tables in a plugin. For that, I am using the below code... global $wpdb; $findID = $wpdb->get_var("SELECT ID FROM wp_posts WHERE post_name = ...
0
votes
0answers
74 views

Why is wordpress trying to re-install itself?

I ran out of space on my MySQL server so I got a bigger disk and moved the files to the new disk, restarted MySQL and things were fine. But I went to my sites and now wordpress is acting like its ...
0
votes
1answer
18 views

Where should I put this custom data?

My client needs to store food nutrient data in his site's database. I have food name, calories, protein, fat, carb, fiber and other data to store for many food items. I'm a developer but new to WP. ...
0
votes
2answers
354 views

dbDelta SQL Query Not Working

I know the specifics of using dbDelta and I've read the documentation (http://codex.wordpress.org/Creating_Tables_with_Plugins), read other answers to the question I'm asking, but I'm just not seeing ...
0
votes
1answer
4k views

How To Make Connection To WordPress Data Base In A Plugin?

I am learning Plugins and I am trying to connect WordPress database wp-config.php in my Plugin PHP code. Currently for checking my code, I used the below connection and it is working fine. Now I ...
3
votes
1answer
288 views

wp_options table value

I am trying to understand a wordpress behaviour. When I add a tag in the admin panel mysql does a sequence of queries. Essentially: update wp_terms update wp_term_taxonomy and udate wp_options with ...
1
vote
1answer
1k views

Wordpress database import: Row size too large

I've done a dump of my Wordpress database using Windows's command prompt: mysqldump -u username -p databasename > filename.sql Then, on a different server, imported it using: mysql -u username ...