new calculated column

Поиск
Список
Период
Сортировка
От andres javier garcia garcia
Тема new calculated column
Дата
Msg-id 200209051652.g85Gqki20106@natura.cebas.csic.es
обсуждение исходный текст
Список pgsql-sql
Hi;

I've got a table with two fields and about 3000 rows, the second one is a 
character field, what can have about twenty different values; of course these 
values are repeated a lot of times in the table. I need to create a new 
column of type integer, whose value depens on the character fields. The 
values of the new column are not important, the important thing is who can I 
create this column and assign a different integer to a different char value 
in the other column.
Thanks
--------------
Javier


В списке pgsql-sql по дате отправления:

Предыдущее
От: Viacheslav N Tararin
Дата:
Сообщение: Re: the best way to get the topest 3 record in every group
Следующее
От: "Linn Kubler"
Дата:
Сообщение: Character translation?