Re: this doesn't look right

From: Shaleen <shgarg_orafaq_at_hotmail.com>
Date: Mon, 30 Dec 2002 14:08:48 -0800
Message-ID: <F001.00524634.20021230140848@fatcity.com>

Varchar2(4000) is coming from sys.attrcol$ table. dba_tab_columns does not have a join this table. I am sure there are people on this list who'll enlighten me about contents of sys.attrcol$ table.

select u.name, c.name, o.name,

       decode(ac.name, null, col.name, ac.name), cc.pos# from sys.user$ u, sys.con$ c, sys.col$ col, sys.ccol$ cc, sys.cdef$ cd,sys.obj$ o, sys.attrcol$ ac
where c.owner# = u.user#
  and c.con# = cd.con#

  and cd.type# != 12       /* don't include log groups */
  and cd.con# = cc.con#
  and cc.obj# = col.obj#
  and cc.intcol# = col.intcol#
  and cc.obj# = o.obj#

  and col.obj# = ac.obj#(+)
  and col.intcol# = ac.intcol#(+)

-Shaleen
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Monday, December 30, 2002 12:23 PM

> As part of the process of making sure that null/not null constraints
> are consistent across development/staging/production, I'm looking at
> the dba_cons_columns table.
>
> Now, as far as I know, column_names are limited to 30 characters,
> correct? If so, why is the column_name column in dba_cons_columns
> (9.2.0.1) a varchar2(4000)? I realize that the "extra space" isn't used
> and is never allocated so it's not like this is wasteful.
>
> But it's inconsistent with everything else, since dba_tab_columns has a
> column_name column of varchar2(30).
>
> anyone know why this is like this?
>
> Rachel
>
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-- 
Author: Shaleen
  INET: shgarg_orafaq_at_hotmail.com

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Received on Mon Dec 30 2002 - 16:08:48 CST