Re: numeric conversions?

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От Jonathan Ellis
Тема Re: numeric conversions?
Дата
Msg-id 047d01c0530b$0fafd0a0$0d00a8c0@dsl.inconnect.com
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Ответ на numeric conversions?  (Bruno Boettcher <bboett@erm1.u-strasbg.fr>)
Список pgsql-sql
> is the type casting done automaticly? how? can i have an influence of
> the cast order? is there an easy way to doing the rounding?

bf2=# select 1 / 2 from dual;?column?
----------       0
(1 row)

bf2=# select 1::float / 2 from dual;?column?
----------     0.5
(1 row)

bf2=# select (1::float / 2)::int from dual;?column?
----------       0
(1 row)

Also you have the functions round, floor, and ceil, which do what you would
expect.

-Jonathan



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