Questions tagged [mysql]

MySQL is a database system used by many websites on the Internet. Joomla is based on PHP and MySQL.

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1answer
133 views

How to write the logged in user id in Plotalot queries?

I am trying to use plotalot to graph user results. The program only uses mysql queries to pull data. How can I pull session specific user data with a mysql query? Normal Joomla session variables ...
1
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1answer
156 views

How to sort title of items with natural sort order?

When you have in a column a list of items such as: Title1 Title2 ... Title10 Title11 and you filter on Title (alphabetically), the output is like: Title1 Title10 Title11 Title2 I want it to sort ...
3
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2answers
561 views

How to get Custom Fields related to Joomla Content?

I want to know how they get the values of custom user fields within Joomla articles. This is to contribute ideas and ways to solve it.
2
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2answers
163 views

How to query for users that have all tags when searching for multiple tags?

I have this custom module that shows all contacts based on some tags. I can add one or more tags in a field in the module What I want is to add the option in the module to show: all contacts that ...
1
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1answer
232 views

SQL Error when updating custom component in Joomla 3.9

I have a custom component and I want to add language filter to my extension. So in my sql update file I added the following two lines to Alter my tables. ALTER TABLE `#__contract_contracts` ADD `...
0
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1answer
2k views

MySQL update select one table from another

I'm struggling to get this MySQL query to work and hoping someone out there can help please. I wish to "copy" one record from table traincomprofiler to course_dates where both tables share the column ...
3
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1answer
2k views

How to write a query with GROUP BY and ORDER BY using Joomla's query methods?

I have the following query that I need to convert to Joomla using JDatabase. This query executes as intended in the phpMyAdmin. SELECT `id`, DATE_FORMAT(`estEventDate`, '%b %Y') AS estDate, COUNT(`id`...
1
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1answer
166 views

How to construct a JOIN query with Joomla's query methods?

I'm really new to SQL queries but now stuck with this one. I need the first and last name of a user from table #__comprofiler where their cb_job_role = 'Team Leader' and their cb_service_name = [the ...
2
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2answers
844 views

How to check if specific table names exist in a database?

All I want to do is check if a table exists or not and I can't figure it out. I've tried: for ($r = 0; $r < count($tableArray); $r++) { $db = JFactory::getDbo(); $query = $db->getQuery(...
2
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2answers
256 views

How to query certain rows from a table based on other associated rows in the same table?

I'm trying to query my jos_rsform_submission_values table for FieldValue data in rows with a FieldName of Container# which shares a SubmissionId with another row where the FieldValue is "Pending" and ...
-1
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1answer
348 views

How to write a conditional check on a column value with a mysql query?

I am trying to setup a simple default statement on the results page of a testing system. This seems like it would be relatively simple, but I cannot get my if statement to process properly. The ...
2
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1answer
345 views

How to count the rows in a database table that have a date in the current year?

I am writing a module that displays a count of the number of records depending on the date_time column. I am able to get the result that I am looking for when using a static date as below. However, I ...
1
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2answers
969 views

How to write a query with a WHERE clause with two conditions?

I cannot seem to get this select statement to work with the WHERE conditions. Depending how it loads the data, I either get the first test result or all of the test results and not the user_id-...
2
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3answers
81 views

Confusion about using two select() method calls in one query

I am using Joomla's JDatabaseQuery methods to select some columns from two joined tables, but I don't understand something about the following snippet. //Initialize variables. $db = JFactory::getDbo()...
3
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1answer
908 views

with insert on duplicate key update - updating multiple rows at once

With latest joomla version I try to achieve one query to the database and updating multiple rows at once. I want to make a query like this: INSERT INTO `tablename` (`id`,`date`) VALUES ('79','2018-...
1
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1answer
143 views

How do I set the flag CLIENT_MULTI_STATEMENTS for calling multiple stored procedures in a single stored procedure?

How do I set the flag CLIENT_MULTI_STATEMENTS for calling multiple stored procedures in a single stored procedure? I have 30 stored procedures I would like to execute with a button click to process ...
0
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1answer
57 views

Joomla / PHPMyAdmin bug when “select” is in the value

This question was originally asked on StackExchange, and it was recommended by @mickmackusa that I ask it here. Background We recently changed over from one server to a brand new one. Old server: ...
0
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1answer
183 views

How to access user-submitted values from a dynamic form?

I want to insert a row in my db-table with inputs from users. The form the users fill out is made with a foreach-loop: foreach ($results as $row) { echo '<div class="vm_kampe"><input ...
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2answers
139 views

How to generate missing column data using a reformatted substring of another column?

Due to a process issue (i.e. client not following instructions) I have over 900 urls with missing aliases in a mosets tree table. If possible I would like to create an SQL query that will generate ...
2
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2answers
255 views

How to refactor two select queries on RSForm submission data?

I was wondering if anyone could help me JOIN multiple queries into one query. Currently, these 2 blocks of code retrieve information from the DB. I am using the "Sourcerer" plugin to add custom PHP ...
1
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2answers
106 views

How to re-write sql for joomla JDatabase

I am new to custom Joomla coding so excuse me for this, I want to execute the following statement: "SELECT MAX(CASE WHEN v.FieldName = 'Team_Name' THEN v.FieldValue END) 'Team_Name' , MAX(...
1
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2answers
944 views

Use one pdo connection across multiple modules?

I have multiple modules on the same page that are individually connecting to the same external database through pdo connections. The website is getting slower since I added more modules. My guess is ...
3
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2answers
2k views

Check if INSERT query was successful or failed because of a duplicate UNIQUE KEY

I have a db-table called league where the mail column is the unique id: |name |mail | |Bryan|bryan@hotmail.com | I have a frontend where users can sign up and then I have this for ...
0
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2answers
936 views

Rows with same id in same div

I have a db-table called vm_kupon. It looks a little like this: |id |uid |bet | |1 |20 |1 | |2 |20 |2 | |1 |21 |X | |2 |21 |1 | |1 |22 |X | |2 |22 |X | I ...
1
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1answer
80 views

Query gives a single value when two columns in SELECT clause

I do have a database connection earlier in the script. $db = JFactory::getDbo(); Here's the query code: $albumartistidquery = $db->getQuery(true); $albumartistidquery->select($db->...
3
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1answer
106 views

What is the prefered method for sharing code and SQL queries in joomla 3.9+?

I'm developing a component that is targeting Joomla 3.9+. The code is not using the legacy classes and is instead using the new namespaces. The component will duplicate much of the functionality from ...
0
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1answer
667 views

Php-sql result in joomla displayed in question marks

I have a simple sql query, in a joomla php server, rs forms pro. The result contains Greek characters. However, the result is displayed in question marks. $sql = "SELECT `FieldValue` FROM `table` ...
1
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2answers
412 views

UPDATE query to add 1 to multiple columns

I have a website for my football team. I have some statistics and so on in there, for example how many games each player has played and so on. What I would like, is for me to write in the names of ...
5
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1answer
2k views

SQL Injections using Jfactory::getDBO and setQuery() with LIKE condition

$db = JFactory::getDBO(); $searchP = JRequest::getVar('key'); $sql = "SELECT name FROM people LIKE " . "'%" . $searchP . "%'"; $db->setQuery($sql); $fileR = $db->loadObjectList(); Will ...
4
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1answer
3k views

How to Use IN Clause in Joomla Query

I am trying to select records where a column is in a suggested list if values using the IN clause. I have tried the query below but the system is not working. $db = JFactory::getDbo(); $...
0
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1answer
591 views

Update specific row in FOREACH loop

I've tried and tried, but I can't get this to work. I use Joomla and I have 2 articles/pages, one for edit and one for posting the form. I have a database with all the matches for the World Cup coming ...
0
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2answers
2k views

Multiple primary key defined error when installing Jomestate plugin

I have Joomla 3.8.5 stable version. The code I am tring to execute is: Pastebin SQL code (I am tring to install the JOMESTATE plugin) I get the following error: JInstaller: :Install: Error SQL ...
1
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1answer
800 views

SQL WHERE clause with a variable (current article ID)

I am trying to do a simple calculation on two Joomla custom fields in a module. I get the article ID as a variable and want to put this in the WHERE clause to get the right custom field value. Have ...
1
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2answers
152 views

Localize output of SQL query

I make a query directly on the database like this: SELECT title,id, DATE_FORMAT(publish_up, "%d %M %Y") AS 'GEORGE' FROM #__k2_items WHERE published=1 AND trash=0 AND created_by=[id] ORDER BY ...
0
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1answer
66 views

Copy users from one Joomla db to a slightly newer one

Assuming I have an earlier copy of a Joomla database can I simply copy the jos_users, jos_userkeys, jos_usernotes, jos_userprofiles and jos_usergroup_map tables to a newer copy of the database - by ...
0
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1answer
1k views

How can I save multiple dynamic values using check boxes?

I have a form which fetches and displays data from two databases (sessions, students) and allows a curriculum manager to select different combinations of students and classes by clicking check boxes. ...
0
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1answer
688 views

Restore deleted user

I have a Joomla system (v3.8) which is running well. Unfortunately, however, one of our administrator user record has accidentally been deleted. I need to restore it because we're now getting errors ...
0
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1answer
50 views

Why my code doesn't work?

I am using the following code: $db = JFactory::getDBO(); $query = $db->getQuery(true); $query->select('name') ->from ('#__gruposlocales'); $query-> where('latitudX = ' . (int) $lat); $...
2
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2answers
238 views

How can I translate SQL code into something that Joomla will take?

I am in the same case discussed on https://stackoverflow.com/questions/11709043/mysql-update-column-with-value-from-another-table, that is, I need to copy the value of a column from tableA to tableB ...
0
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1answer
780 views

How to SET a user-defined MySQL variable and increment it to produce ranking values with JDatabaseQuery?

I'm trying to write this query: SET @rownumber = 0; UPDATE #__hikers SET rank = (@rownumber:=@rownumber+1) ORDER BY score DESC; like JDatabaseQuery, but still got an error. Please help UPDATE: I ...
1
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1answer
59 views

What's the proper chaining for WHERE

This statement works: $query = " SELECT COUNT(*) FROM " . $this->s_createtableName . " WHERE tm BETWEEN UNIX_TIMESTAMP(DATE(NOW())) AND UNIX_TIMESTAMP(DATE(NOW()) + INTERVAL 1 DAY)"; In ...
0
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2answers
73 views

How to get banners clients when exists banners with this client?

I need to retrieve the banners_clients data only when exists banners for this client id: Example: banner one - client id 1 banner two - client id 1 banner three - client id 4 client id 1 - name ...
0
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1answer
570 views

Calling a Model's Method from View [duplicate]

I have a function in my model to sum several columns of a table. public static function get_sums() { // Create a new query object. $db = $this->getDbo(); $query = $...
3
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3answers
450 views

Button to execute a mysql query

I made a mysql query that will copy 3 columns of data from one table to another: INSERT INTO eio3k_hikers (link_id, link_name, user_id) SELECT link_id, link_name, user_id FROM eio3k_mt_links where ...
4
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2answers
181 views

Joomla plugin to override table prefix

Overview: I have a single Joomla website that have various copies of the database tables all in the same database, but with different table prefixes. Depending on which user is accessing the site, i ...
0
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1answer
1k views

Fabrik Cross database joins

I have two separate databases with the same credentials: in db1.table1 there is a column containing filepaths that I need to update with a filename that is stored in db2.table2 and that I can retrieve ...
1
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1answer
357 views

How to debug a 500 can't load error?

I have moved a website running joomla from my old VPS to my own server. The server is working fine, other sites are loading. However, this joomla site doesn't load. Please can someone explain what ...
1
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1answer
148 views

Why my custom query only returns one result?

$dbwsk = JFactory::getDBO(); $querywsk = "SELECT `title` FROM `#__content` WHERE 1"; $dbwsk->setQuery($querywsk); $rowswsk = $dbwsk->loadResult(); var_dump($rowswsk); I've been working and ...
0
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1answer
196 views

Join two list views without a shared key

I have a front end list view for a table called #_students and a separate front end list view for a table called #_sessions. The two tables have no shared foreign key and the two data sets are ...
1
vote
1answer
283 views

Retrieve article URL from phpMyAdmin

I am migrating a site from Joomla to WordPress. The migration tool didn't setup redirects for the old urls so I'm planning to write something to do them for me. I need a way to output all the current ...