Merge the content of two similar tables in MySQLhttps://www.joellipman.com/articles/database/mysql/merge-the-content-of-two-similar-tables-in-mysql.html

11 January 2011 standard SQL we can combine the contents of two tables with a CROSS JOIN, (BTW these are not instructions to create some table I'll never use again unlike the rest of the solutions I found on the web). In MySQL, I only know how to do this with a UNION...

• Type: Article
• Author: Joel Lipman
• Category: MySQL
• Language: en-GB

Delete related records from multiple tableshttps://www.joellipman.com/articles/database/mysql/delete-related-records-from-multiple-tables.html

11 January 2013 So this is a quick article on how to delete from multiple tables in a mySQL database where we use some JOIN statements. Why? It is never recommended to delete from multiple tables and instead to use the system you were given. Given a Relational Database...

• Type: Article
• Author: Joel Lipman
• Category: MySQL
• Language: *

T-SQL functions to convert Strings to Tableshttps://www.joellipman.com/articles/database/t-sql/t-sql-functions-to-convert-strings-to-tables.html

20 August 2014 Applies to: Microsoft SQL Server 2008 R2 Microsoft SQL Server 2012 What? These were in a solution and I thought I'd note them on my site so I can refer to them more easily. How? Let's start with a function that just converts a string of words delimited...

• Type: Article
• Author: Joel Lipman
• Category: Transact-SQL
• Language: en-GB

Search a database for a string (MySQL, T-SQL)https://www.joellipman.com/articles/database/search-a-database-for-a-string-mysql-t-sql.html

08 October 2012 -- Provide a single table name or multiple table name with comma seperated. If left blank , it will check for all the tables in the database @SearchStr -- Provide the search string. Use the '%' to coin the search. EX : X%--- will give data staring with...

• Type: Article
• Author: Joel Lipman
• Category: Databases
• Language: en-GB

Create Read-Only Database User in SQL Serverhttps://www.joellipman.com/articles/database/create-read-only-database-user-in-sql-server.html

09 November 2010 can back up the database. db_datareader Members of the db_datareader fixed database role can read all data from all user tables. db_datawriter Members of the db_datawriter fixed database role can add, delete, or change data in all user tables....

• Type: Article
• Author: Joel Lipman
• Category: Databases
• Language: *

Registered Users Cannot Login - Super Users Canhttps://www.joellipman.com/articles/cms/joomla/registered-users-cannot-login-super-users-can.html

26 February 2014 using your MySQL database manager (eg. phpMyAdmin, MySQL Workbench) Open the #__assets table where #_ is the Database Tables Prefix value found by logging into your Joomla admin panel Browse to Site > Global Configuration > Server > Database Settings :...

• Type: Article
• Author: Joel Lipman
• Category: Joomla
• Language: en-GB

Migrate Joomla! 1.5.x to 2.5.x+https://www.joellipman.com/articles/cms/joomla/migrating-from-joomla-15-to-16.html

30 January 2011 of "my_old_database.jos_" to the name of your old Joomla 1.5 database or a copy of (note the "jos_" prefix to all J15 tables, if you have changed this then reflect this in the SQL file). Rename any instance of "my_new_database" to the name of your new...

• Type: Article
• Author: Joel Lipman
• Category: Joomla
• Language: *

MySQL parameters in Excel 2007 PivotTableshttps://www.joellipman.com/articles/database/mysql/mysql-parameters-in-excel-2007-pivottables.html

24 August 2011 want - 7h 24m or 26640s is 1 person day)... With date range as parameters...ouch......and it was so easy up to here... Tables of interest StaffActivities...the one users recorded time gets stored in... Resources...the one with the codes and resource...

• Type: Article
• Author: Joel Lipman
• Category: MySQL
• Language: en-GB

T-SQL Conversion failed when converting the varchar to data type inthttps://www.joellipman.com/articles/database/t-sql/t-sql-conversion-failed-when-converting-the-varchar-to-data-type-int.html

14 May 2013 A very quick note in case I forget this one. If you are trying to join two tables and receiving the error "Conversion failed when converting the varchar value 'B110' to data type int" then read on. How? So where does the 'B110' string come from, well...

• Type: Article
• Author: Joel Lipman
• Category: Transact-SQL
• Language: en-GB

SSIS Multiple Lookups in onehttps://www.joellipman.com/articles/microsoft/ssis/ssis-multiple-lookups-in-one.html

05 August 2014 to do this. How? As a proof of concept, I created one lookup task that executes a SQL query which returns all the joined tables and displays the decode name. Let's pretend the info we want is rather simple: SELECT [sequenceID], [student_reference],...

• Type: Article
• Author: Joel Lipman
• Category: SQL Server Integration Services
• Language: en-GB

Parse a HTML Table into a ListViewhttps://www.joellipman.com/articles/web-development/html/parse-a-html-table-into-a-listview.html

30 March 2013 article on if you were given a webpage coded in HTML, what methods in AutoHotkey could you use to separate out the HTML Tables into a ListView. Why? I want a snippet of code that replicates any HTML table. How? I've been trying various ways so I'm...

• Type: Article
• Author: Joel Lipman
• Category: Hypertext Markup Language
• Language: en-GB

Migrating from Joomla 2.5.x to 3.4.xhttps://www.joellipman.com/articles/cms/joomla/migrating-from-joomla-2-5-x-to-3-4-x.html

12 September 2015 website running Joomla v2.5 as "v25" and the new Joomla instance as "v34". Their respective database tables are prefixed with "v25_" and "v34_". So an example MySQL statement will be: `v25_db`.`v25_tablename` -- with the database name and table prefix...

• Type: Article
• Author: Joel Lipman
• Category: Joomla
• Language: en-GB

Minimal Privileges for MySQL Database Backup Cron Jobhttps://www.joellipman.com/articles/linux/cpanel/minimal-privileges-for-mysql-database-backup-cron-job.html

20 March 2019 For both methods, I grant the following to the user doing the backup on the database I want a backup of: GRANT SELECT, LOCK TABLES, EVENT, INDEX, REFERENCES, TRIGGER, SHOW VIEW ON 'my_live_db'.* TO 'mybackupuser'@'localhost' IDENTIFIED BY...

• Type: Article
• Author: Joel Lipman
• Category: cPanel
• Language: *

MySQL Transactions in PHPhttps://www.joellipman.com/articles/database/mysql/mysql-transactions-in-php.html

14 December 2016 directly like: mysqli->query("START TRANSACTION") mysqli->query("COMMIT") mysqli->query("ROLLBACK") Important note: Our tables must use an engine that supports transactions ie. InnoDB. Don't be silly like me and spend hours wondering why your...

• Type: Article
• Author: Ike Francis
• Category: MySQL
• Language: en-GB

Migrate MediaWiki to another serverhttps://www.joellipman.com/articles/cms/mediawiki/migrate-mediawiki-to-another-server.html

23 September 2009 this is inside mysql, Note that both mysql versions should be same. grant create, select, insert, update, delete, lock tables on wikidb.* to wiki@localhost identified by 'YourPassword' ; MediaWiki Upgrade copy all the new files to wiki folder and then...

• Type: Article
• Author: Joel Lipman
• Category: MediaWiki
• Language: en-GB

Report Builder 2.0 - Hide Series1https://www.joellipman.com/articles/microsoft/ssrs/report-builder-20-hide-series1.html

06 May 2010 "Series1" displays on my chart because of values that are not matched (not assigned to a current individual) in the joining tables: Return to the Design interface (F8) Right-click on your dataset (in my case: DataSet1) Select 'Dataset Properties' Add a...

• Type: Article
• Author: Joel Lipman
• Category: SQL Server Reporting Services
• Language: en-GB

Accessing a MySQL Database with Business Intelligence Development Studiohttps://www.joellipman.com/articles/database/mysql/accessing-a-mysql-database-with-business-intelligence-development-studio.html

05 January 2011 listed) Enter credentials if necessary and click on "Test Connection" Expand the data connection you just made and expand "Tables" just to see if the connection is working properly. Create the Data Source Still within Business Intelligence Development...

• Type: Article
• Author: Joel Lipman
• Category: MySQL
• Language: en-GB

MySQL: Find records in one table that are not in another.https://www.joellipman.com/articles/database/mysql/mysql-find-records-in-one-table-that-are-not-in-another.html

25 February 2011 MediaWiki CMS used by Wikipedia.org and the like. I like queries against this database because it involves linking a lot of tables and outputting... just articles and their titles. I have another table holding the audit trail of content approvers on the...

• Type: Article
• Author: Joel Lipman
• Category: MySQL
• Language: en-GB

SSRS Hide results table if emptyhttps://www.joellipman.com/articles/microsoft/ssrs/ssrs-hide-results-table-if-empty.html

29 March 2011 @ncount:=@ncount+1), we're stuck with T-SQL. Ask Google how to iterate in T-SQL and you're confined to functions, temporary tables or little subroutines which just overcomplicates basic simple select queries... However set a counter to 1 for each and...

• Type: Article
• Author: Joel Lipman
• Category: SQL Server Reporting Services
• Language: en-GB

SSRS Querying on either of 2 Parametershttps://www.joellipman.com/articles/microsoft/ssrs/ssrs-querying-on-either-of-2-parameters.html

19 July 2011 if it wasn't provided to start with. Additionally, the second solution will mean each dataset must at least join both tables that you are using the OR clause against. There must be a solution that executes a query at report execution time and...

• Type: Article
• Author: Joel Lipman
• Category: SQL Server Reporting Services
• Language: en-GB