Answers for "remove duplicate values postgresql"

SQL
6

query postgres delete duplicates

DELETE FROM dups a USING (
      SELECT MIN(ctid) as ctid, key
        FROM dups 
        GROUP BY key HAVING COUNT(*) > 1
      ) b
      WHERE a.key = b.key 
      AND a.ctid <> b.ctid
Posted by: Guest on February-20-2020

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