Re: what's the size of a date field?

elain he wrote:
>
> Hi,
> I'm trying to figure out the size (in bytes) of a DATE column. Executing the
> three queries below returned me three different values. Is there any way of
> finding the size of a date column in the database?
>
> Thanks.
>
> elain
>
> select * from testing;
> DOB
> ---------
> 06-OCT-03
>
> desc testing
> Name
> Null? Type
> ------------------------------------------------------------------------
> -------- -------------
> DOB
> DATE
>
> select avg_row_len from user_tables where table_name='TESTING';
> AVG_ROW_LEN
> -----------
> 11
>
> select data_length from dba_Tab_columns where table_name='TESTING';
> DATA_LENGTH
> -----------
> 7
>
> select length (timestamp) from abc;
> LENGTH(TIMESTAMP)
> -----------------
> 9
>

select vsize(dob), dump(dob) from testing;

-- 
Regards,

Stephane Faroult
Oriole Software
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Stephane Faroult
  INET: sfaroult_at_oriole.com

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