select few fields as a single field
От | Roman Gavrilov |
---|---|
Тема | select few fields as a single field |
Дата | |
Msg-id | 3C3D63D0.D56AA7E5@il.aduva.com обсуждение исходный текст |
Ответы |
Re: select few fields as a single field
|
Список | pgsql-general |
Hello everybody,
I have this question,
Suppose that I have a table with 3 fields name, version, release.
name | version | release
------------------
test | 1 | 2
ema | 1.2 | 2.2
------------------
I have this question,
Suppose that I have a table with 3 fields name, version, release.
name | version | release
------------------
test | 1 | 2
ema | 1.2 | 2.2
------------------
I want to retrieve full name as 'select name || '-' || version || '-' release from table';
test-1-2
ema-1.2-2.2
I can do this as regular sql query;
But i would like to do this as 'select full_name from table'
One way is to create view which will do the job.
Other way to do this is to create additional field name full_name and to store the full name inside the field.
Is there any possibility to create function or constraint trigger that will know that when I am doing select full_name it should
concat name version release and return it as full_name.(full_name is virtual field)
I don't want to create it as view;
------------------------
Thanks
-- ----------------------------------------------------------------------------- Roman Gavrilov Aduva Inc., Web Development Services. work +972-3-7534324 mobile +972-54-834668 romio@aduva.com, romio@netvision.net.il
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