The first method involves using the built-in attribute `RowID`. This unique identifier can help you pinpoint and remove duplicate rows. The self-join technique is another method for identifying ...

Let's create a table with duplicate rows in SQL. create table CustomerDuplicate(customer_id int,customer_name varchar(20)) insert into CustomerDuplicate values(1,'Adam') insert into CustomerDuplicate ...

For all countries that have multiple rows in the country_continent table, delete all multiple records leaving only the 1 record per country in the master table. The record that you keep should be the ...