MySQL is an open-source, relational database management system.

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37 views

How to fetch post and related information from post and postmeta table in WordPress?

I want to fetch post information and its related meta information in WordPress setup. Is it possible from single SQL Query? Post table columns: ID, post_title, post_content Post Meta columns: meta_id, ...
0
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0answers
58 views

Importing data from database to WP_list_table

How can I import data from a table where Ive got : ID, Name, LastName, Adress and class and by the way, how do I create this plug-in? Any examples?
7
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4answers
3k views

How can I find the source of slow queries in Wordpress?

I have a WordPress site with more than 8000 posts and everytime I add a new one the site becomes unresponsive. I checked the MySQL slow queries log and found out that it is performing a select that ...
0
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0answers
96 views

call stored procedure without parameters

I asked this question last week, but then I deleted it because it was stated to be off-topic because I use a function within buddypress. However, I am convinced that whatever I am doing wrong is more ...
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1answer
32 views

Active DB queries in Wordpress?

I just make some researches regarding to wordpress DB queries and I just wonder if I miss something a normal SELECT query for example in Codeigniter with active records would look like if I assume I ...
0
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0answers
50 views

Populating a form with SQL queries

Being a 'learning by example' kind of guy, I've populated a form using this code; <?php $meta_key1 = 'area'; $postids = $wpdb->get_col( $wpdb->prepare( " SELECT ...
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votes
1answer
977 views

MySQL Query that looks for post with Custom Field, then changes Category

I'm looking for a MySQL Query that will look for all the posts with custom field "meta_key_I_want_to_find", then if the custom field is detected, add a category to that post. The category has already ...
1
vote
1answer
71 views

No wp-config.php file on local install of wordpress - site still displays

I've installed Wordpress locally using XAMPP and this step by step guide by Sunny Johal(Fifth post down on that page). The first time I used the step by step and ran all 3 of the SQL codes(UPDATE ...
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vote
1answer
938 views

How can I debug my database connection for unit testing?

I've set up a wordpress environment on my Mac with MAMP and I'm running 3.5.1 locally (i.e. http://localhost:8888/blog works). I'm trying to run the unit test suit from wordpress.org and having ...
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0answers
60 views

Change post category via MySQL

I'm currently building a management program that works separately from Wordpress but interacts directly with the Wordpress MySQL database. I have it working updating, adding and deleting posts and ...
-1
votes
2answers
29 views

SQL Database Lost

I lost my database and when they restored the files, I had two files in a database directory that I assume are the data for my database. How do I recover my database using these two files. ...
1
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1answer
391 views

Large Woocommerce Site (83,000 items), What Can I Do? [closed]

So I have a really large woocommerce site (partsboss.co) that has around 83,000 items. It's on VPS hosting with digitalocean, and things were running super fast until around 50,000 items. Now the ...
3
votes
2answers
650 views

How to prevent execution of default query, while preserving ability to use WP_Query in template?

PROBLEM: I'am trying to prevent execution of default WordPress query for custom category template. I have found a possible solution, but looks like it preventing execution of all post queries: ...
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1answer
28 views

Why this query is not showing any result on wordpresss home page?

I am learning wordpress database, And I have written this query for showing the data from the post table with id=2, but not showing anything. What is wrong with the following query? please help. ...
0
votes
1answer
79 views

How to make an sql query to exclude everything but custom taxonomy terms in table wp_terms?

Problem Summary: I am trying to write a SQL query that returns only my custom taxonomy terms, but the table (wp_terms) contains all of the terms, even ones that I don't want (such as category terms, ...
1
vote
1answer
106 views

wpdb insert and boolean fields

I'm preparing an insert query like this: $wpdb->insert('table', $data, $format); data array will be: $data = array_push($data, 'resp' => true) problem is, what $format shall i use for a ...
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2answers
46 views

Grouping posts by a custom meta value

I'm trying to output a list of dates that are held in a meta key called event_dates without duplicates. I've also tried a wp_query with a meta_compare but I'm not able to make that work either. Any ...
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votes
2answers
993 views

Alternative to mysql_real_escape_string

I have a WordPress plugin that at one point I need to see if a certain title exists in the database. For 2 years, this code worked fine: $myposttitle= $wpdb->get_results( "select post_title ...
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0answers
40 views

How to create and display survey and its statistics?

I am making a new website which will basically have 5 questions of Consumer Confidence Index. So my task is to create a survey which should display in homepage take answers for each 5 key questions, ...
0
votes
1answer
40 views

Update postmeta after theme switch

I am trying to update the postmeta table when I switch themes. I am updating the metavalue to be template-name.themename.php. However, this only works with the default themes in wordpress. If I go ...
0
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0answers
107 views

Would manually deleting the dumping data fix a “#1062 - Duplicate entry '1' for key 'PRIMARY'” phpMyAdmin error?

I'm new to PHP! I'm trying to import an SQL database file into myPhpAdmin for a WordPress I'm migrating, but I keep getting this error message: SQL query: `-- -- Dumping data for table ...
2
votes
2answers
3k views

Get Previous & Next posts by Post ID

How can I go about getting the previous and next posts from outside the loop? Everything I try to do aside from the custom SELECT query (using get_posts or WP_Query) breaks stuff further down the ...
0
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0answers
34 views

Whats the Mysql Query to Find each display_name stored in wp_postmeta.meta_value, grouped by username?

I created a custom content type that contains some fieds tos store user names (display name), thru a meta.key that is called 'opr'. Now i want a mysql query to find all custom postss date ...
0
votes
2answers
45 views

Plugin generating unexpected output - on WP mysql dump import

I am developing my plugin and I am getting this error: The plugin generated 357954 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with ...
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0answers
110 views

Slow meta_query with about 4 milion record on wp_postmeta

Although optimized wordpress all the way but still very slow as follows : I have converted from LONGTEXT meta_value field to TEXT Then create INDEX for this field ALTER TABLE wp_postmeta ADD INDEX ...
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2answers
88 views

Single meta_query query using OR instead of AND in request's WHERE statement

I want the native WordPress search input to search metadata in addition to its standard title and content search, however setting a meta_query adds an AND clause to the request when what I need is an ...
0
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2answers
3k views

WordPress mysqli and PDO

Does wordpress code base use mysqli or PDO? I know PDO is superior to mysqli but mysqli is not bad neither. Plus from one of the features of what makes PDO is superior to mysqli ( that is being ...
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0answers
20 views

Unable to run wordpress site in WebMatrix after database credential change (db_name, db_user, db_password)

Well, I assumed this would be much easier. I set up wordpress using the Web Platform Installer. It ran with the database it automatically created for me (DB_NAME: wordpress960, DB_USER: ...
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 ...
0
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1answer
62 views

Massive Tags Remove Using MySQL

I am using WordPress 3.4.2 for one of my site and currently it has 38,251 tags Now i want to remove all Tags from my site, so which way will be more safe to truncate every tags my site has.
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1answer
112 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 ...
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0answers
56 views

Splash pages on a high traffic site

Could use some advice here. We have a fairly high traffic site web site using WordPress. Currently we have two VPS servers managing the site, one that holds WP, one that holds MySQL. The WP servers ...
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1answer
103 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 ...
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vote
1answer
31 views

How to find meta entries with their posts missing via SQL?

I'm looking to write an SQL query to do the following: Select all postmeta rows where the meta_value = a post id that does not exist. For example, postmeta meta_value may equal 235. Usually this ...
1
vote
1answer
49 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
0answers
243 views

How to let a user choose an authors and save it to the database?

I have a multi-author Wordpress site which reads different rss feeds and posts them to my page. I was wondering if it is possible to make a code that would provide an opportunity to registered user ...
2
votes
1answer
72 views

Using $wpdb Class to Pull Recent Comments Across a Network

Been looking for a clean and simple way to produce comments from across a network using the $wpdb database class. I did find this answer, which has been protected, and is four years old. I wrapped ...
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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 | ...
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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
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1answer
148 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
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 ...
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 ...
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
0
votes
0answers
71 views

Import posts into SQL

Is there a way to bulk import posts directly into the database? like from csv into sql database. I don't want to use those csv import plugins since they don't always work they either only import half ...
1
vote
1answer
282 views

How to count post meta key values for all posts in database

In my post meta data I have the following 'key' for every post: "image_details" a typical value of which is an array such as: ...
0
votes
0answers
105 views

SQL query to remove first image in all posts

I've built a site up over a few years (3,500+ posts) where I've inserted images using the traditional method into the post content itself. I'm now moving to a different theme, and have made the first ...
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
36 views

I want to select the from values from database in WordPress? [closed]

Here is my code: $sql = 'SELECT * FROM ' . $wpdb->base_prefix . 'item WHERE uname = "'. $_POST['login_name'] . '" '; $result = $wpdb->get_results($sql) or die(mysql_error()); foreach($result as ...
8
votes
1answer
821 views

Why are simple updates to wp_postmeta's “_edit_lock” so slow?

In our MySQL slow query log, the cumulatively slowest query is a simple update to wp_postmeta. Here's an example: UPDATE `wp_postmeta` SET `meta_value` = '1392835505:386' WHERE `post_id` = 94705 ...
1
vote
1answer
28 views

Why doesn't this code add a table to my database?

To get to the point, I'm trying to add a database table upon installation of my plugin. Here's my code: global $scimp_db_version; $scimp_db_version = "1.0"; function scimp_install () { global ...