Search Postgresql Archives

Re: How to write such a query

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

 



Yes - 100%

- Jon

    

Jonathan Strong

CIO / CTO / Consultant

P: 609-532-1715 E: jonathanrstrong@xxxxxxxxx

Quora Top Writer



On Fri, Sep 18, 2020 at 2:22 PM Adrian Klaver <adrian.klaver@xxxxxxxxxxx> wrote:
On 9/18/20 11:13 AM, Jonathan Strong wrote:
> @Adrian -
>
> Using a unique key value or otherwise isolating a specific record via
> selection against values in its attributes is certainly preferable to
> choosing a row to update via its position in a result set, unless the
> use case actually makes use of that position info as a meaningful
> descriptor of the data in some fashion.


The bigger issue is deciding what attribute of the selected row is be
used to do the UPDATE. Unless it is the PRIMARY KEY(or other UNIQUE
key(s)) then you very likely are going to UPDATE more then you bargained
for.

>
> - Jon
>
> <https://www.linkedin.com/in/jonstrong/> <https://www.jonathanrstrong.com>
>
>       
>
> *Jonathan Strong*
>


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx

[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 Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]

  Powered by Linux