Questions tagged [sql]

Structured Query Language (SQL) is a language for querying databases.

21
votes
1answer
11k views

How to combine ANDs and ORs in the WHERE clause using a Query Object?

Given the desired SQL below, where Cond1 and Cond2 must be met OR Cond3 must be met for selection, what is the correct way to use getQuery() to achieve it? Desired SQL: Condition1 and Condition2 ...
7
votes
2answers
509 views

Recommended practices regarding transfering database from Joomla 1.5 to Joomla 3

I want to transfer about 300 articles from a Joomla 1.5 website to a Joomla 3.3.1 website. I have access only to the Joomla 1.5 database but not to the backend (I have access to both for the joomla ...
6
votes
2answers
354 views

Structure folder of sql files in my component

What folder should I put my sql files in my component for joomla execute them automatically? If in the first version I created a table and in later version I want to change, how should I organize that ...
5
votes
1answer
237 views

Joomla 3.6 How to migrate data from repeatable to subform

The new field type subform does not retrieve old data repeatable, even fields have the same names. I created many posts with repeatable. The data are stored in extra fields of com_conent. attribs ...
4
votes
3answers
3k views

How can I get the names of the columns in an object or table with Joomla's SQL?

With the existing output I have from a basic query, what would be the best way to get the names of the columns in the resultant output object without having to run an additional COLUMNS query on the ...
4
votes
3answers
773 views

How to rewrite SQL-query with CASE/WHEN to Joomla-based “format”

I have the following SQL-query to database: $jinput = JFactory::getApplication()->input; $category_id = $jinput->get('virtuemart_category_id'); $db = JFactory::getDBO(); $query = $db->...
4
votes
2answers
377 views

Join an existing table with a generated table of dates and count rows for each date?

I would like to use this complex mysql query in my joomla model to generate a timeline and count entries within a specific date range. My SQL Query is: SELECT T.calendar, COUNT(DATE(M.date)) as ...
3
votes
4answers
2k views

How to write my MySQL query with JOIN logic using JDatabase methods?

I'm having a difficult time translating this SQL script to JDatabase methods because I can't find the AND query method. SELECT user.firstname, user.lastname, leadership.leadname, leadership.lead_des ...
3
votes
2answers
717 views

JDatabase JOIN on multiple values

What is the JDatabase syntax for a JOIN statement that joins two tables on a variable that is either equal to x or is null? Eg it joins on multiple values. I have found some examples that show me you ...
3
votes
1answer
33 views

(RuntimeException $e) vs (JDatabaseExceptionExecuting $e) for SQL exception handling

Through out the current version of Joomla (3.9.6) I find a mixture of ways that SQL exceptions are handled and I was wondering if anyone could give me some definitive situations where one should be ...
3
votes
4answers
586 views

How to only transfer new column values from one table to another?

I'm attempting to create a new table: _clients that will be simply populated with, for now, with the user_id column from #__user_usergroup_map. Ideally, the below code should pull all id's from #...
3
votes
1answer
871 views

Migration Files - post update sql migration scripts generation

I am looking for an organised way to run joomla updates locally and then update production systems by means of code deployment + db migrations, so that i do not have to update joomla on production, or ...
2
votes
2answers
46 views

What does sql_select=“e.*” do?

On https://docs.joomla.org/SQL_form_field_type it talks about using the SQL fields. I'm wondering what sql_select="e.*" does. I know that the star is a wildcard for everything. I'm just not sure ...
2
votes
2answers
137 views

Transfer Joomla data from PHPMyAdmin SQL Dump

My friend's web page was created with Joomla (c. 2013), and she wants to transfer her site to a new host. Her current host sent her a SQL Dump generated by PHPMyAdmin, which contains what I assume is ...
2
votes
2answers
3k views

Error 1146 while installing K2 extension

While installing K2 extension, Joomla 3.0, GoDaddy hosting) received error message: Table 'iWebazoid.bq1ry_k2_categories' doesn't exist SQL=SHOW FULL COLUMNS FROM bq1ry_k2_categories Unable to ...
2
votes
2answers
159 views

How to retrieve RSForm submission data grouped by SubmissionId?

I have a table with 3 columns: SubmissionId, FieldName and FieldValue. 1) SubmissionId keeps ID submission. 2) FieldName stores field name of a form. 3) FieldValue stores field value of form field. ...
2
votes
2answers
109 views

Component Update: DB error file function returned no error

I have been working on a component but noticed when I update it I get an error (something like "Component Update: DB error file function returned no error", not exact but close). I notice this is due ...
2
votes
2answers
112 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 ...
2
votes
3answers
64 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()...
2
votes
2answers
322 views

Old update sqls being run on update

I'm building a custom component, and on initial install on Joomla 3.3.6 it installs properly. However, when I install again, rather than running the update sql only from the current version+, it ...
2
votes
1answer
74 views

Joomla Migrating Live Site To Localhost -Navigation Not Working

I just migrated a Joomla site from live to localhost. Have the front end up and can access the backend without problem. Front end wise none of the menu items work. I have renamed the live site ...
1
vote
4answers
11k views

The MySQL adapter mysqli is not available - how to resolve this issue?

My website www.EliteMaths.com.au has been active until early this week. When I tried to access it this morning I got the following error message: Error displaying the error page: Application ...
1
vote
2answers
445 views

Extension install scripts without raw sql

I am new to Joomla development, coming from Magento. Working through the tutorials with a certain extension in mind I stumbled upon a little problem. By now Joomla supports MySql and MSSQL and more ...
1
vote
1answer
124 views

Recycling IDs: re-using articles, category's ID that have been trashed for new articles

I like to work with small IDs. Is there a way to automatically re-use the IDs of trashed* items? (* when using "empty trash") Is it safe to run this query: ALTER TABLE jos_content AUTO_INCREMENT=0 ...
1
vote
2answers
193 views

getting some sql error

I have recently restored my joomla website and it was working perfectly fine, but suddenly I am receiving the following error: 1064 : You have an error in your SQL syntax; check the manual that ...
1
vote
2answers
614 views

After Joomla update duplicate or create new module get id : 0

Joomla is updated to 3.3 and create of a new module or duplicate existing module with no success. Its possible to create a new, or duplicate modules but module id is 0 for each new module I create, ...
1
vote
2answers
706 views

How to Create a Foreach Loop that Returns Users In a Specific Usergroup

My goal is to create an html select box via a foreach loop that returns all users within a specific custom usergroup (ex. usergroup = Agents). Once, the query pulls in all records (users) for that ...
1
vote
3answers
3k views

How can I select the IDs of a category and all its (n levels) subcategories?

Beside the parent category, I would like to recursively collect all of its child rows. (Pseudo code) SELECT IDs FROM #_categories WHERE parent = father As an alternative, SELECT IDs WHERE the first ...
1
vote
1answer
40 views

Issues to be aware of when calling `concatenate()`, `regexp()`, `rand()`, and `castAsChar()` in sql queries

I'm taking it upon myself to become aware of some of the lesser known/used query methods because I like toying with MySQL and I want to implement Joomla calls when possible/sensible -- because they ...
1
vote
1answer
127 views

Delete row from custom made SQL when deleting article in Joomla

I´m still new to Joomla and to coding SQL. I was thinking about how I should manage a big system I made with information that is saved in a sql table, that contains some user input and the "id" of an ...
1
vote
2answers
49 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
vote
2answers
74 views

Rewriting code as per Joomla guide, but page showing 404 error

I am rewriting some old code according to the latest reference, although the page description is coming out correctly in the old code. But when rewritten into new code, the page is redirecting to ...
1
vote
3answers
39 views

Trying to set up new joomla from old joomla files

So basically my Joomla site was attacked a few weeks ago by SQL injection and was taken down. What I am hoping to do, is to go into the file manager and download all of my articles, categories, ...
1
vote
1answer
93 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 ...
1
vote
1answer
125 views

Error when populating a database table while installing a module

I am using the following code for creating tables in my .sql file as part of a module. CREATE TABLE IF NOT EXISTS `#__gruposlocales` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(...
1
vote
1answer
138 views

How to select records one by one using JDatabaseQuery

In programming languages there are 2 patterns for selecting records from the database: //prepare SELECT statement while($record = $query->fetchRow()) { //do the job } And the second: //...
1
vote
1answer
236 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 ...
1
vote
1answer
73 views

Adding a stand alone php (with sql queries built using mysql phpgenerator) to existing Joomla application

I am totally new to Joomla development in specific but have done good old prog days (C, Oracle, Sybase etc). So i use a Library software in Joomla and do all the installation, admin etc thing.. i want ...
1
vote
1answer
129 views

Joomla 2.5 and Virtuemart 3 installation problems

I've tried installing Joomla 2.5 and Virtuemart 3 (full install download from Virtuemart's website) and I went through the installation process ok. However I've had a lot of errors come up and don't ...
1
vote
1answer
53 views

Join two similar table SQL [closed]

In database it shows: -Table 1 data show discount_category_id as: 1 2 3 -Table 2 data show category_id as: ,1, ,2, ,3, So is anything wrong or any syntax error with my code because i tried print_r ...
1
vote
1answer
134 views

Run Stored Procedure From Page Load

I have a html table that has a hyperlink in it, when the hyperlink is pressed 3 parameters are passed to a secondary page. The query that is run is a CTE SQL Server statement, and from my ...
1
vote
3answers
1k views

Retrieving multiple results from the database

I don't have much Joomla or PHP experience so I'm probably missing something really simple. I'm trying to load a certain list of user IDs into an array. This code works except it only loads one result....
0
votes
3answers
85 views

Convert PHP code to Jooma PHP syntax?

I'm running a query on phpmyadmin which has the "IN" function included. It is to extract data from the same column for different fields' (Waybill1, Waybill2 etc.) I shall post the SQL query below: ...
0
votes
2answers
642 views

Get current language and DB Query to select content by language

I'm trying to select data from content table in Joomla (3.4) filtered by language field. When I pass a value, it doesn't change in the SQL statement Here is my code: public function articlesar() { ...
0
votes
1answer
38 views

Bulk delete disabled k2 users Joomla 2.5

I have thousands of spam users. I use K2 and I would want to delete them from "k2_users" and from "users". I want to delete the blocked ones. I have tried deleting K2_users from the admin, but it does ...
0
votes
2answers
51 views

Ordering Joomla menus in code

I am trying to order jos_menu items by the order in which they appear on the menu. In other words, I am using jdatabase sql queries to fetch menu objects then iterate through them to display them. I ...
0
votes
1answer
246 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 ...
0
votes
1answer
135 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 ...
0
votes
1answer
278 views

Error: Incorrect table definition; there can be only one auto column and it must be defined as a key

I am trying to install joomla 3.7.5. I am facing an Error message: Error: Incorrect table definition; there can be only one auto column and it must be defined as a key The table '#...
0
votes
1answer
378 views

Joomla 3x sql field NOT Filtering on Change

I am using Joomla 3x sql field to filter between two select fields.. The problem is that the second field does not filter as expected. It is just populated with all the result and when I select a ...