SQL Query to Find and Remove Duplicate Rows from Database Tables

Published: 16 January 2024
on channel: Codehow2
148
4

How to Find and Delete Duplicate Rows in Database Tables. This video is about how to find duplicate rows in SQL and then delete duplicate rows from database. You can write SQL query to remove duplicates. This video shows how to find and delete duplicate rows in MySQL. We will be using phpMyAdmin and show how to use SQL queries to find and delete duplicate rows. First we write an SQL query for how to identify duplicate records in database and then another query to remove duplicate data in SQL. #php #ajax #mysql #phpcourse #phptutorials #phpdeveloper #phpmyadmin #phpmysql #php #ajax #mysql #phpcourse #phptutorials #phpdeveloper #sql #phpmysql

A table is created and some dummy data is inserted into the table. Then an SQL query is written using the COUNT function and GROUP BY with HAVING clauses. If the count is more than 1 then those are the duplicate rows. Then using a DELETE statement we can remove them from the database table.
We are using phpMyAdmin to create the table and to run the SQL queries.

This video can answer the followings:
How to Use SQL Queries to Find and Delete Duplicate Rows?
How do I find duplicate rows?
How to identify duplicate records in database?
Can SQL table have duplicate rows?
How do I find duplicate rows in a data set?
How to Find Duplicate Rows in SQL?
What is the SQL Query to Find Duplicate Records in DBMS?
How to Find Duplicate Values in a SQL Table?
How to find duplicate rows in a table in SQL Server?
How to Find duplicate records in a table using SQL Server?
How to find duplicate records in the table with all columns are the same?
How to Find Duplicate Records in SQL?
How to find duplicate rows in SQL with multiple columns?
How to find duplicate rows in a table in SQL multiple?
How to delete duplicate records in SQL
How to Delete Duplicate Rows in SQL?
How to Find and Delete Duplicate Rows with SQL?

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