The relational database management system MySQL is free and open-source. The word “My” is a combination of “SQL,” the acronym for a structured query language, and “My,” the name of co-founder Michael Widenius’s daughter.
A relational database arranges data into one or more tables where it is possible for the data to be related to one another. The relational database’s data can be created, modified, and extracted using the SQL programming language, which is also used to manage user access to the database. An RDBMS, such as MySQL, works with an operating system to implement a relational database in a computer’s storage system, manages users, permits network access, and makes it easier to test database integrity and create backups.
Under the terms of the GNU General Public License, MySQL is free and open-source software. It is also accessible under a number of proprietary licences. Sun Microsystems acquired the Swedish company MySQL AB, which owned and sponsored MySQL (now Oracle Corporation).
Objectives of the blog
To learn how to fix the issue “The user specified as a definer (‘xyz’@’localhost’) does not exist” in MySQL. It can be any value in place of ‘xyz’.
This error has occurred because you have defined different users in Definer and using other accounts in MySQL.
So while creating Triggers, you should use the “root@localhost” in the Definer. Follow the below steps to resolve this error:
Step 1: Open phpMyAdmin
Step 2: Select your database and table
Step 3: Click on the “Triggers” tab from the top of the page
Step 4: Click on the “Edit” to edit triggers.
Step 5: Change Definer from xyz@localhost to root@localhost
For more details check this screenshot:
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