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Re: Removing duplicate rows in table

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On 9/10/24 08:29, Rich Shepard wrote:
On Tue, 10 Sep 2024, Adrian Klaver wrote:

Is there a Primary Key or Unique index on this table?

Adrian,

No. It didn't occur to me to make the project number a PK as this table is
not related to others in the database.

But, yesterday it occurred to me to make the proj_nbr a PK to eliminate
future issues.


You might want to do something like:

select proj_nbr, count(*) as ct from projects group by proj_nbr;

to see how big a problem it is. If it is only a few projects it could just a matter of manually deleting the extras.

Whatever you do:

1) Make sure you have a backup of at least that table.

2) Do the data changes as BEGIN; <changes> COMMIT; or ROLLBACK;

Thanks,

Rich



--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx






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