Re: Removing Last field from CSV string

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От Steve Litt
Тема Re: Removing Last field from CSV string
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Msg-id 20200517220715.4bc7fa2b@mydesk.domain.cxm
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Ответ на Removing Last field from CSV string  (Alex Magnum <magnum11200@gmail.com>)
Список pgsql-general
On Sat, 16 May 2020 23:18:57 +0800
Alex Magnum <magnum11200@gmail.com> wrote:

> Hi,
> 
> I have a string that I want to cut to 60 char and then remove the last
> field and comma.
> 
> substring('Class V,Class VI,Class VII,Competitive Exam,Class
> VIII,Class X,Class XI,Class IX,Class XII',1,60);
> 
> substring | Class V,Class VI,Class VII,Competitive Exam,Class
> VIII*,Class*
> 
> Now I try to remove the last  field and comma  ",Class"
> 
> To get  Class V,Class VI,Class VII,Competitive Exam,Class VIII
> 
> Is there a function or easy way to do this?
> Any help would be appreciated.
> 
> Thank you
> Alex

Assuming the CSV strings are in a file, my first thought would be to
get rid of the final field using AWK, and feed that into your import.
 
SteveT

Steve Litt 
May 2020 featured book: Troubleshooting Techniques
     of the Successful Technologist
http://www.troubleshooters.com/techniques



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