How to Delete Duplicate Rows in MariaDB

Identify Duplicate Rows

Duplicate rows in a database can lead to data inconsistencies and inefficiencies, impacting database performance and integrity. MariaDB provides several methods to identify and delete duplicate rows. Below are the methods that help us to delete duplicate rows in MariaDB are as follows:

Using DELETE Statement
Using Subquery
Using Temporary Table

Let’s set up an environment

To understand How to delete duplicate rows in MariaDB we need a table on which we will perform various operations and queries. Here we will consider a table called indian_states which contains id, state_name, capital, and population as Columns.

We can see our table has been created successfully.

States Table