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

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1answer
81 views

retrieve wordpress post-meta using php not wordpress functions

I am trying retrieve wordpress postmeta USING PHP not WORDPRESS functions, it needs to be in php no wordpress functions please. this is what I have: $resultat = mysqli_query($con,"SELECT * FROM ...
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1answer
57 views

Which is better and faster ? Wordpress Queries or SQL Query

Suppose I am developing a minimal theme, the the post page single.php displays only the post title, the excerpt and the content. So in general that would be <?php the_title(); ?> <?php ...
0
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2answers
334 views

mySQL queries are executed twice on wordpress website

I'm sorry for my english. I'm trying to add some functionalities at my Wordpress website and to do this i have added a function in my function.php theme. The idea is to save in a custom table some ...
0
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1answer
59 views

WP_Query hit max joins… How else can I build a search function that uses custom fields?

I'm trying to search a custom post type of "Properties", while doing so I'm also searching the custom fields using multiple (anywhere from 5-30) meta_queries. The problem is Wordpress or MySQL is ...
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2answers
115 views

Add “Category” to Mysql Query

i need your help :) I've made this custom Mysql query on WordPress: $querystr = " SELECT DISTINCT meta_value FROM $wpdb->postmeta WHERE post_id IN( SELECT DISTINCT ...
0
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1answer
103 views

Get author posts count after excluding a category

I want to display the posts count of each author, but posts that are in some categories should be excluded from the count. I tried doing this with count_user_posts( $user->ID ), but this function ...
0
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1answer
110 views

Adding custom tables to Wordpress

I have a database which has thousands of rows of data in each of the tables. I would like to migrate this database into a Wordpress website. I would like the user to be able to log in to Wordpress ...
0
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1answer
33 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 ...
1
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1answer
207 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 ...
0
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1answer
41 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
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1answer
116 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
389 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
81 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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2answers
3k 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 ...
0
votes
0answers
305 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 ...
0
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1answer
46 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
votes
2answers
8k views

phpMyAdmin error #1062 - Duplicate entry '1' for key 'PRIMARY'

I'm new to PHP! I'm trying to import an SQL file using phpMyAdmin through a GoDaddy cPanel(please don't make fun of me) Here's a full readout -- -- Dumping data for table `wp_commentmeta` -- INSERT ...
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votes
2answers
82 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
221 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
217 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 ...
-1
votes
2answers
36 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. ...
0
votes
1answer
170 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
197 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
86 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 ...
1
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1answer
54 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 ...
2
votes
2answers
150 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 ...
0
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1answer
309 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 ...
2
votes
1answer
101 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
112 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
1answer
486 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' ")); ...
1
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1answer
199 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 ...
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1answer
317 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
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0answers
156 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 ...
1
vote
1answer
39 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 ...
1
vote
1answer
33 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 ...
-1
votes
1answer
175 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
1answer
140 views

$wpdb->wp_users returning empty value for

I have a code Example: function custom_func(){ global $wpdb; $wpdb->flush(); //tried with and without this line $getTest = 'SELECT * FROM $wpdb->wp_users LIMIT 1'; ...
1
vote
2answers
1k views

Different database query in function.php using mysqli

I am trying to connect to a database in the function.php using mysqli. The code seems to run fine when it is not on a separate php file not on wordpress. But when I run it on wordpress I get "Connect ...
0
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0answers
111 views

Best way to execute custom page-specific mysql queries

I would like to query a secondary mysql database (not the Wordpress mysql database) with page-specific queries. I've seen many answers / tutorials on setting up a secondary mysql database, like: ...
0
votes
1answer
62 views

wp_postmeta - lot of meta fields

I found a lot of meta_key + meta_value fields in my database in wp_postmeta. They are all same only meta_id and post_is changign. And there is more than thousands of them. Look at the pic. Should I ...
0
votes
1answer
273 views

Updating User Meta with SQL Query

I have a Wordpress site that needed to have 9,000+ users imported to set up a Directory Listing. I imported them from an existing MySQL (non-wordpress) database and everything imported just fine. ...
1
vote
1answer
2k views

wpdb->insert multiple record at once

So after I have created the table 'settings-table' i want to add a couple of records to it. This is how I want to do it, not the best way, so I need a better way to do this because I will add more ...
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0answers
203 views

MySql Query very slow

I have a problem with a query on my website. When I load the page it is incredibly slow and only after over 12 seconds the content starts showing. I have installed a debug plugin and found the query ...
0
votes
4answers
315 views

Strange wordpress slowness

I read a lot about my problem. I have 4 years old Wordpress (with newest 3.8.1 Wordpress) site. And last months it become really slow. It takes about 3-5seconds to render page. In administration area ...
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vote
0answers
78 views

Calculate average crossing post categories

In my WP database I have some posts i the category hotels and some other posts in the category visits. In the posts (placed in the category visits) there is two meta_fields ( rating and placeid ) ...
9
votes
1answer
2k 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 ...
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votes
2answers
28 views

Exporting completed webiste for another server

I've been working on a Wordpress website with WooCommerce etc for my friends business for a while. It's pretty much done, all products are added etc. However this has been done on my own webhost / ...
0
votes
1answer
226 views

List users with the most posts in the last 30 days

I'm trying to create a MySQL query to display a descending list of users with the most number of posts over the last 30 days. This is not working with me: $where .= " AND post_date > '" . ...
0
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0answers
302 views

Using the same shortcode to show any table from the database

I have a little question for you. I want to create a shortcode that makes a table with data that I have stored in a database. But i want to send the shortcode an attribute, to specify which table ...
-1
votes
1answer
233 views

Using <?php echo get_num_queries(); ?> queries in and i see 7000+queries?

I have put queries in seconds. in my footer.php and i see more than 7000 queries in about 9 secs , is this a lot?? On my localhost i have 195 queries in 3,070 seconds. As the live ...