"donald.holloway" wrote:
> 
> All,
> 
> I need to know if there is a way to insert a character value of 'null' as a
> default for a column:
> 
>   example:  student_name     varchar2(10) default 'null'
> 
> I have tried this and it works if I update the column values to the string
> 'null' later:
> 
>   example:  update student set student_name = 'null' where student_name is
> null
> 
> I know that null is a reserved word but I though that I saw it used
> somewhere like this before and just thought I would check with the group on
> this.  thanks.
> 
> Joseph Hway
> [EMAIL PROTECTED]
> 

Joseph,

  NULL means, in plain English, 'undefined'. Setting a default value of
'undefined' makes no sense, since it is precisely what the value is when
unspecified and there is no default.
You must have seen it used with "R"DBMS which do not support null values
...

-- 
Regards,

Stephane Faroult
Oriole Software
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Stephane Faroult
  INET: [EMAIL PROTECTED]

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Reply via email to