This still begs the question why varchar(4000) in the underlying table if column names are only allowed to be 30? Is this table used for other objects that can have a longer name? If so what?
Rodd On Mon, 2002-12-30 at 16:08, Shaleen wrote: > 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" <[EMAIL PROTECTED]> > 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 > > > > __________________________________________________ > > Do you Yahoo!? > > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > > http://mailplus.yahoo.com > > -- > > Please see the official ORACLE-L FAQ: http://www.orafaq.net > > -- > > Author: Rachel Carmichael > > INET: [EMAIL PROTECTED] > > > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > > San Diego, California -- Mailing list and web hosting services > > --------------------------------------------------------------------- > > 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). > > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net Rodd Holman [EMAIL PROTECTED] Romans 1:16-17 -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Rodd Holman INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
