By Michael Nocito , data analyst · Published August 7, 2026 By the end of this page you can check any table for duplicate rows, list every copy, and mark which one to keep, all with queries you understand. You will also know the step that comes before any query: deciding what "duplicate" means f...

Source: [Dev.to](https://dev.to/michaelnocito/how-to-find-duplicate-rows-in-sql-and-decide-what-counts-as-one-1h9i)

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