Help On Postgresql

Поиск
Список
Период
Сортировка
От Jaydip
Тема Help On Postgresql
Дата
Msg-id 000801c12ba8$5924ab40$ca00a8c0@dewanji
обсуждение исходный текст
Ответы Re: Help On Postgresql
Список pgsql-sql
Dear Friends
 
I am Jaydip Dewanji working as a Sr. Programmer for Ontrack Systems Ltd.
 
I have some questions regarding Postgresql which are listed below:
 
a) How do I retrieve the Year,Month,Day,Hr,Minute or Second value from a Date/DateTime variable.
 
    For Example : i> In Oracle to_char(dt,'yyyy') - for extracting the year value from a date variable dt
                         ii> In SqlServer datepart(hh,dt) - for extracting the Hour value from a date variable dt
 
b) Can I create an identity column in Postgresql the value of which column will start from 1 say and keep
    on incrementing by 1 OR how can I serve my purpose in any other way.
 
 
Please do let me know if any one of you have any solution.
 
Regards
 
Jaydip

В списке pgsql-sql по дате отправления:

Предыдущее
От: "satish rao "
Дата:
Сообщение: Create table syntax
Следующее
От: "Josh Berkus"
Дата:
Сообщение: Re: Problem with sequences