SQL Delete Duplicate Rows using Group By and Subquery | Delete duplicate records data in table in ms
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How to delete duplicate records in SQL using subquery?
Using the ROW NUMBER function to discover a sequential number for each row, grouped by the columns you define as unique, and a subquery to locate each ROWID (which is a unique number provided to each row in an Oracle table). The ROWID values that have been designated as duplicates should be located. Rows with these ROWIDs should be deleted.
How to delete duplicate records in SQL using Group By?
SQL delete duplicate Rows using Group By and Subquery
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