Search Postgresql Archives

Re: Removing duplicate rows in table

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Sep 10, 2024 at 11:07 AM Rich Shepard <rshepard@xxxxxxxxxxxxxxx> wrote:
I've no idea how I entered multiple, identical rows in a table but I want to
delete all but one of these rows.

Here's an example:

bustrac=# select * from projects where proj_nbr = '4242.01';
  proj_nbr |   proj_name    | start_date |  end_date  |  description  | notes
----------+----------------+------------+------------+---------------+-------
  4242.01  | Expert witness | 2008-10-15 | 2008-10-28 | Consol Energy |
  4242.01  | Expert witness | 2008-10-15 | 2008-10-28 | Consol Energy |
  4242.01  | Expert witness | 2008-10-15 | 2008-10-28 | Consol Energy |
  4242.01  | Expert witness | 2008-10-15 | 2008-10-28 | Consol Energy |
(4 rows)

How do I clean this up so there's only a single row for this project number?

https://www.postgresqltutorial.com/postgresql-window-function/postgresql-row_number/
 
I'd use row_number to delete records where row_number > 1.

--
Death to America, and butter sauce.
Iraq lobster!

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]

  Powered by Linux