Find duplicate rows in table

— Reference metalink id – 332494.1
— Save as duplicate.sql and run as @duplicate.sql
REM This is an example SQL*Plus Script to detect duplicate rows from
REM a table.
REM
set echo off
set verify off heading off
undefine t
undefine c
prompt
prompt
prompt Enter name of table with duplicate rows
prompt
accept t prompt ‘Table: ‘
prompt
select ‘Table ‘||upper(‘&&t’) from dual;
describe &&t
prompt
prompt Enter name(s) of column(s) which should be unique. If more than
prompt one column is specified, you MUST separate with commas.
prompt
accept c prompt ‘Column(s): ‘
prompt
select &&c from &&t
where rowid not in (select min(rowid) from &&t group by &&c)
/

Thank you for giving your valuable time to read the above information.
If you want to be updated with all our articles send us the Invitation or Follow us:
Ramkumar’s LinkedIn: https://www.linkedin.com/in/ramkumardba/
LinkedIn Group: https://www.linkedin.com/in/ramkumar-m-0061a0204/
Facebook Page: https://www.facebook.com/Oracleagent-344577549964301
Ramkumar’s Twitter : https://twitter.com/ramkuma02877110
Ramkumar’s Telegram: https://t.me/oracleageant
Ramkumar’s Facebook: https://www.facebook.com/ramkumarram8