Answers for "how to remove duplicate data from sql"

SQL
6

query 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
0

how to query without duplicate rows in sql

SELECT DISTINCT col1,col2... FROM table_name where Condition;
Posted by: Guest on October-02-2020

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