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I'm new to SQL. I tried to delete the duplicate customer record where has same name and surname. This below is my command

delete duplicated_records from  (
  select row_number() over (partition by name, surname
                            order by name, surname) as rn
      ,          * 
  from customer
) duplicated_records where rn > 1;

Which throw me this error

ERROR:  syntax error at or near "duplicated_records"
LINE 1: delete duplicated_records from  (

But when I tested running just to see the record, I didn't get any error.

select duplicated_records from  (
  select row_number() over (partition by name, surname
                            order by name, surname) as rn
      ,          *
  from customer
) duplicated_records where rn > 1;

Could anyone please advise me if I did something wrong here. Thanks in advance.

Improve this question
3
  • Check your syntax: DELETE FROM table_name WHERE condition; Commented Oct 22, 2020 at 8:52
  • @iLuvLogix in this case, could you please guide me what's I should change my command to? Thanks Commented Oct 22, 2020 at 9:07
  • 3
    Does this answer your question? PostgreSQL Removing duplicates Commented Oct 22, 2020 at 9:13
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