postgresql select remove duplicates rows code example

Example 1: query to remove duplicate records in postgresql server

DELETE FROM
    basket a
        USING basket b
WHERE
    a.id < b.id
    AND a.fruit = b.fruit;

Example 2: postgresql remove duplicate rows 2 columns

DELETE FROM sf_table
WHERE id IN
    (SELECT id
    FROM 
        (SELECT id,
         ROW_NUMBER() OVER( PARTITION BY tosp, icd
        ORDER BY  id ) AS row_num
        FROM sf_table ) t
        WHERE t.row_num > 1 );

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