{"id":235825,"date":"2024-06-08T22:01:19","date_gmt":"2024-06-08T22:01:19","guid":{"rendered":"https:\/\/namso-gen.co\/blog\/?p=235825"},"modified":"2024-06-08T22:01:19","modified_gmt":"2024-06-08T22:01:19","slug":"how-to-delete-duplicate-value-in-sql","status":"publish","type":"post","link":"https:\/\/namso-gen.co\/blog\/how-to-delete-duplicate-value-in-sql\/","title":{"rendered":"How to delete duplicate value in SQL?"},"content":{"rendered":"

**To delete duplicate values in SQL, you can use the ROW_NUMBER() function combined with a common table expression (CTE) to identify and delete duplicate rows. Here’s a step-by-step guide on how to do it:**<\/p>\n

1. **Create a CTE that assigns a row number to each row based on a specified order.**
\n2. **Use the ROW_NUMBER() function to partition the data by the columns that contain duplicate values.**
\n3. **Select the rows with row numbers greater than 1, indicating duplicates.**
\n4. **Delete the duplicate rows by filtering the CTE with the row numbers identified in the previous step.**<\/p>\n

By following these steps, you can effectively delete duplicate values in your SQL database and ensure data integrity.<\/p>\n

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