Find Duplicate Rows

📝 SQL

psilva774 · 22d ago

This SQL snippet identifies rows that appear more than once in a table by grouping columns and filtering with a HAVING clause count greater than one.

SQL

SELECT column1, column2, column3, COUNT() AS duplicatecount
FROM yourtable
GROUP BY column1, column2, column3
HAVING COUNT() > 1;

Comments

-1

marc61294 16d ago

@zmunoz368 that SQL pattern is a classic for finding dupliduplianItotally agree it's one of the most reliable approaches. Nothing beats a solid HAVING clause for clean data checks.