SQL (Structured Query Language) is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS).

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Inserting rows into a custom table, when plugin is activated

Trying to create a plugin that creates a custom table & populates it with a row of data, once activated. The table is created OK, but the row of data is not added. Please can someone point out ...
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39 views

SQL update post category by post starting letter

I need to update post category based on post first letter. E.g. all post starting with "A" should go into "A" category. so far i can only select posts starting with "A". SELECT * FROM wp_posts ...
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15 views

How to change location, charset in Wordpress query [duplicate]

I have strange question. How Can I change or set a sql char set in wordpress. In wp_config.php I have: define('DB_CHARSET', 'utf8'); define('DB_COLLATE', 'utf8'); In my plugin I have this: global ...
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1answer
51 views

How to return value from sql and display it

In ordinary php I don't have that kind of problem I think but in WP this is a different story. I have query and I want return one value from "liczba_wodo" column. global $wpdb; if ...
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1answer
49 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 ...
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98 views

orderby in WP_query doesn't works

I thought that this already works but now I tested it and it seems that it no longer works. I have this code: wp_reset_query(); $args=array( 'posts_per_page' => 3, 'meta_key' => ...
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1answer
64 views

How to optimize multiple insert into wordpress database

I had main file with my plugin and the another file with sql command. In the second file I create two tables and write data to one of them. But I have problem with. In my private computer everything ...
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1answer
199 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 ...
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61 views

Help me SELECT thumbnail from SQL and use

//MySQL Username $user = "myuser"; //MySQL Password $pass = "mypass"; //MySQL Database Name $database = "mydb"; //Number of posts you want to have appear $numOfPosts = 7; //Setup connection $mysqli = ...
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56 views

Delete duplicate custom field with specific vaule

I'm trying to delete specific custom fields that have been duplicated, however i only want to delete the fields with the value 0 in them. I currently have this code that will delete the duplicate ...
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37 views

problem in sql syntax

problem in Mashable Slider Clone plugin when upload it in server WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for ...
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3answers
109 views

Get a count of how many times a term or a category is used in posts

I need to find out the number of times a term/tag or category is used in a post in WordPress. I wrote the below SQL query. SELECT t.name , count(*)FROM wp_terms t JOIN wp_term_taxonomy tt ON ...
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0answers
58 views

How to import a Typo3 database to a wordpress site?

I have a SQL database export from a Typo3 site. Does anyone know know or have any experience of dealing with these cases?
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2answers
5k views

Scanning Database for malicious Data

After a site of a friend has been hacked I told him he should just clean up the mess and restart from scratch so he know that no file has been altered. I could scan the site for him with tools like ...
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2answers
3k views

Retrieving custom fields with $wpdb->get_results

I'm trying to use $wpdb->get_results to retrieve an array of all posts including custom fields. I can retrieve the meta_key and meta_value columns like this: [meta_key] => state [meta_value] ...
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54 views

Delete posts without category with SQL

A website I am working on has a 'lost' category uncategorized. It got deleted and now I have thousands of posts without category. Those posts are old an need to be deleted. How can I do this with SQL ...
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1answer
88 views

Get the most repeated post contents from a search?

In my site the posts content is always the name of a school, so if I search for Chicago I get a lot of posts with different schools as content. What I want to do is to get the Schools with the most ...
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0answers
39 views

On adding new field in post table my all posts not displaying in post section in php wordpress

I have created a module for posts. Now I have to modify this module by adding a new column to it. I have done it and it is working fine on local, but when I upload the code on live server, none of ...
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1answer
251 views

Select column name dynamically mySQL Query

$country="USA"; $dr=$wpdb->get_results("SELECT $country FROM wp_shipping WHERE ID=$ids"); I want the above query in WordPress file, where country name is given dynamically but I am not getting ...
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1answer
3k views

Overriding default calendar to show posts from a category

I'm trying to modify the default WP calendar (get_calendar()) so that it shows posts from a specific category and then use that as a shortcode. Here's what I've done: Copied across the ...
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0answers
421 views

$wpdb->insert() does not Insert record in a table

I'm trying to understand and get hold of the $wpdb global object but can't seem to make it work. Basically, I'm trying to insert a single record into a custom table in wordpress DB. Instead of ...
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0answers
66 views

Delete junk text from all the post using my sql command

Because of an autoblog plugin, my site has got junk text in every post! The text format is as below .. funny-pictures/funny-pictures-of-the-day-30-pics/attachment/funny-pictures-41-2/" ...
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1answer
191 views

Attempt to improve WP search, can someone check my SQL query?

I'm stumped. I've done a bunch of work to filter what posts get pulled in a WP search and then even more work sorting those after they're pulled from the DB. My main problem now is getting results ...
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1answer
161 views

find pods item where relationship to other pod is not set

I need to fix the effect of an error that left empty a relationship field that should have been autofilled. To fix this I need to find all pods item that has the relationship not set, but I don't ...
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1answer
107 views

How do I insert a new meta key / value pair, but only if another meta key is present?

I need to add a new meta key and value part only on posts where another key is present (regardless of its value). I tried to use a query to automate it, but my SQL is quite limited Here's what I ...
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1answer
176 views

mass delete posts based on metadata

I need to delete all posts that have a certain meta value for a certain meta key. I am looking for how to do this directly in the DB. So for instance, I have a meta field called "state", and I want to ...
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1answer
47 views

Removing links from posts in WordPress

I have few blogs for some clients. I need to remove links to one of my clients blogs in all posts. Just to be clear I need to remove links and my keyword should stay like it is. I found this plugin, ...
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2answers
381 views

WPDB SQL query with prepare() returning variable, not db value

I have been trying to get this to work for awhile now and I cannot seem to get any farther on my own. It seems to work fine as a normal SQL query but not within the WP framework using prepare(). ...
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1answer
2k views

cleaning up safely wordpress wp_postmeta table

In a effort to facilitate maintenance of my site, optimise page loading , and also helping out db migration , i am trying to cleanup the wordpress database of my site. i ahve realised the wp-postmeta ...
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1answer
684 views

How to remove in the wordpress database all posts revisions except the last three?

here is the commonly recommended sql command for removing posts revisions and cleaning up the wp database: DELETE a,b,c FROM `wp_posts` a LEFT JOIN `wp_term_relationships` b ON (a.ID = b.object_id) ...
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1answer
88 views

wpdb_prepare with multiple or condition

I want to execute a query like this: $wpdb->prepare( "SELECT * ... from ... WHERE ( post_title LIKE '%%%s%%' or post_content LIKE '%%%s%%' )..., $string ); If I do the query with only one ...
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1answer
40 views

Extending the database

I'm trying to add an extra column to the comments database which will store the user ID of the post/page author. This is part of a plugin which will display new comments in reply to either a post or ...
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2answers
198 views

How to use get_results() in widget front end?

I'm trying to get_results() in my widget's front end, this is my current code: public function widget( $args, $instance ) { echo $args['before_widget']; if($children = $wpdb->get_results( ...
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1answer
83 views

How to concatenate two separate colums into one?

In phpmyadmin I have two separate columns for latitude and longitude. e.g. lat: '38.897683' lng:'-77.03649'. These coordinates are generated for my location custom posts. How can I automatically ...
0
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1answer
126 views

query specific posts according their custom fields, using sql SELECT

My posts have a bunch of custom fields, to help insert and display custom info easily. I am trying to build a search that would select and display posts according values of specific 2 custom fields. ...
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1answer
103 views

posts_where Fails with More than One Custom Field in Query

Querying either of the 2 fields individually gives the expected result (posts are displayed). But, when both fields are included in the query (ex = 'foo' and 'bar' shown in below example), then no ...
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4answers
208 views

wordpress ajax relationship query

Using the relationship field from Advanced Custom Fields I link artists to events. Both these artist and events are custom post types. For each event, the post IDs of the related artists are stored in ...
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1answer
248 views

Query sql for truncate post_content in wp_posts table

Hello all i need remove all info in Wordpress posts content and i'ld like do it from phpmyadmin with a query. I need remove only the text and images from all posts content but not the entire post, so ...
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1answer
57 views

For a complete backup, is it enough to copy htdocs and export database?

I copied the htdocs via FTP from the server which hosts my wordpress blog. Moreover, I used phpMyAdmin to export the MySQL database. When I move to a new server, can I just create a database, run the ...
0
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1answer
218 views

When sorting WP_List_Table, table sorts, but I also get SQL errors

Here's my lovely prepare_items() function: function prepare_items() { global $wpdb; $table_name = $wpdb->prefix . 'blah'; $per_page = 100; $columns = $this->get_columns(); ...
2
votes
2answers
264 views

What is an efficient way to query based on post_meta?

The problem I am having is when I allow users to filter posts it overpowers the database and things run extremely slow. I am unsure what the best way to query posts using meta values is. My site has a ...
0
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1answer
151 views

How to export database correctly for local to online

This process as a whole is fine... but I seem to have one small issue when I upload the database online. If I create a theme and modify some options that's fine for the local version. Once I upload ...
0
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1answer
39 views

Wordpress SQL - How to Check for Category?

I'm using the following SQL (wrapped in php) to find posts in a wordpress database: $sql = " SELECT p.* FROM {$wpdb->prefix}most_popular mp INNER JOIN ...
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1answer
121 views

SQL Query in WordPress - Getting Impossible WHERE error

I don't get any result in the SQL query below. I am trying to find user_id of users with custom usermeta fields. SELECT DISTINCT user_id FROM wp_usermeta WHERE ( ( ...
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0answers
49 views

Getting deleted users in database

I am using the database that is being used by a WordPress site. I am trying to get all the users from wp_users table with SQL query. But there is also previously deleted users in wp_users table. I ...
0
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2answers
2k views

Getting value from database table depending on field value

I am using a plugin called formidable which is similar to Gravity Forms in terms of purpose. I have two fields of interest. The first field loads up all the values in the Town column of my ...
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2answers
71 views

How can I order metaboxes in my posts in WordPress?

hello i did add a custem filed and this is my code add_action( 'add_meta_boxes', 'cd_meta_box_add' ); function cd_meta_box_add() { add_meta_box( 'my-meta-box-id', 'المعلومات الرئيسية لفلل مشروع', ...
2
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1answer
308 views

Bulk add tag (or any sort of label) to posts who have custom excerpt

The situation is the following: The blog as of now has 2200+ posts. In the beginning (2007/2008) I was using manual excerpts where I would put an image and a little bit of text. The manual excerpt ...
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1answer
55 views

Advanced search: roles and multiple taxonomies

I have a site with custom roles, and custom taxonomies. I'm making the advanced search, where custom posts can be filtered by roles and taxonomies. To accomplish this, I'm using my own custom SQL ...
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1answer
213 views

SQL query to check whether a meta key is set or not for a post in post_meta table

Condition: some post have meta_key 'status'. Please help me in with this condition: sql query for those post who don't have meta_key 'status'