Firstly the person is new to oracle and so he should not be doing anything with the DD other than querying. Secondly I don't think changing this 30 charcter limit can be as easy as modifying col$.name.
Even if it is independent of the software code and only a DD issue, and someone has tested it to be doable, the suggestion should have come with a caveat. Well I'm not a Guru so will be more than "a bit concerned" before doing any such thing. Regards Naveen > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Thursday, June 12, 2003 7:29 PM > To: Multiple recipients of list ORACLE-L > Subject: Re: RE: db file sequential read [WAS:wait event puzzler] > > > he is talking about altering the column in the data > dictionary. Ive updated TS$ myself and its not that big of a deal. > > id be a bit concerned about actually altering a column. > Oracle may have some underlying code that you dont know about > that assumes a maximum column length = 30 or there is some > modelling reason for the limit also. > > > > From: "Naveen Nahata" <[EMAIL PROTECTED]> > > Date: 2003/06/12 Thu AM 08:49:22 EDT > > To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> > > Subject: RE: db file sequential read [WAS:wait event puzzler] > > > > What?????????????????????? > > > > > -----Original Message----- > > > From: Senthil Kumar D [mailto:[EMAIL PROTECTED] > > > Sent: Thursday, June 12, 2003 5:05 PM > > > To: Multiple recipients of list ORACLE-L > > > Subject: RE: db file sequential read [WAS:wait event puzzler] > > > > > > > > > Dear Bhaskar, > > > > > > You can modify col$.NAME to varchar2(60) and try. > > > > > > If this fails, I'll give a procedure you can use that to > change it to > > > whatever size you want. > > > > > > Senthil Kumar > > > Sr Oracle DBA > > > Summitworks Technologies Pvt Ltd > > > > > > -----Original Message----- > > > Bhaskar Viswanathan > > > Sent: Thursday, June 12, 2003 4:00 PM > > > To: Multiple recipients of list ORACLE-L > > > > > > > > > > > > hi, > > > > > > We use Oracle 8 DB. > > > > > > I am not a Oracle technical guy. So lemme try explaining > the problem. > > > > > > We need to create tables with columns, whose > names(column-names) are > > > more than 30 characters long. > > > This is being restricted because, all columns of all tables > > > have entries > > > in a table called 'col'. > > > Thit table is defined as: > > > > > > SQL> desc col > > > Name Null? Type > > > ----------------------------------------- -------- > > > ---------------------------- > > > TNAME NOT NULL VARCHAR2(30) > > > COLNO NOT NULL NUMBER > > > CNAME NOT NULL VARCHAR2(30) > > > COLTYPE VARCHAR2(106) > > > WIDTH NOT NULL NUMBER > > > SCALE NUMBER > > > PRECISION NUMBER > > > NULLS VARCHAR2(19) > > > DEFAULTVAL LONG > > > CHARACTER_SET_NAME VARCHAR2(44) > > > SQL> > > > > > > since CNAME is defined as VARCHAR2(30), we are forced to > > > retrict column > > > names to a max of 30 characters long. > > > > > > For eg. create table T1(xxxxxxxxxxxxxxxxxxxxxxxxxxxxx31 > varchar2(50)); > > > The above statement will be rejected with the error: > > > * > > > ERROR at line 1: > > > ORA-00972: identifier is too long > > > > > > However, the statement "create table > T1(xxxxxxxxxxxxxxxxxxxxxxxxxxxx30 > > > varchar2(50))" > > > Succeeds in creating the table; > > > > > > I guess this table col is created by the system itself. how can we > > > change this size > > > So that the 30 character restriction in column names can > be avoided??? > > > > > > baski > > > > > > **************************Disclaimer************************** > > > ********** > > > > > > Information contained in this E-MAIL being proprietary to > > > Wipro Limited is > > > 'privileged' and 'confidential' and intended for use only by > > > the individual > > > or entity to which it is addressed. You are notified that > > > any use, copying > > > or dissemination of the information contained in the E-MAIL > > > in any manner > > > whatsoever is strictly prohibited. > > > > > > ************************************************************** > > > ************* > > > -- > > > Please see the official ORACLE-L FAQ: http://www.orafaq.net > > > -- > > > Author: Bhaskar Viswanathan > > > 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 > > > -- > > > Author: Senthil Kumar D > > > 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). > > > > > > > > > DISCLAIMER: > > This message (including attachment if any) is confidential > and may be privileged. Before opening attachments please > check them for viruses and defects. MindTree Consulting > Private Limited (MindTree) will not be responsible for any > viruses or defects or any forwarded attachments emanating > either from within MindTree or outside. If you have received > this message by mistake please notify the sender by return > e-mail and delete this message from your system. Any > unauthorized use or dissemination of this message in whole or > in part is strictly prohibited. Please note that e-mails are > susceptible to change and MindTree shall not be liable for > any improper, untimely or incomplete transmission. > > -- > > Please see the official ORACLE-L FAQ: http://www.orafaq.net > > -- > > Author: Naveen Nahata > > 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 > -- > Author: <[EMAIL PROTECTED] > 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). > DISCLAIMER: This message (including attachment if any) is confidential and may be privileged. Before opening attachments please check them for viruses and defects. MindTree Consulting Private Limited (MindTree) will not be responsible for any viruses or defects or any forwarded attachments emanating either from within MindTree or outside. If you have received this message by mistake please notify the sender by return e-mail and delete this message from your system. Any unauthorized use or dissemination of this message in whole or in part is strictly prohibited. Please note that e-mails are susceptible to change and MindTree shall not be liable for any improper, untimely or incomplete transmission. -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Naveen Nahata 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).
