How can MySQL query and remove duplicate records?

You can use the following methods to search for duplicate records and remove them:

1. Search for duplicate records.

SELECT column1, column2, COUNT(*)
FROM table_name
GROUP BY column1, column2
HAVING COUNT(*) > 1;

1. Remove duplicate entries.

SELECT DISTINCT column1, column2
FROM table_name;

Note: Replace the column1, column2, and table_name with the actual field names and table name in the examples above.