Bhaskar, Please don't modify any system tables.
You cannot overcome the 30 character limit of oracle. If only it was all that easy. Better change your naming conventions to abbreviate long words like customer to cust etc. Regards Naveen > -----Original Message----- > From: Bhaskar Viswanathan [mailto:[EMAIL PROTECTED] > Sent: Thursday, June 12, 2003 6:50 PM > To: Multiple recipients of list ORACLE-L > Subject: RE: db file sequential read [WAS:wait event puzzler] > > > > Hi Senthil, > > > One thing I can see is that this object col is not a > user-defined table. > Probably a system table. > > I tried "alter table col modify cname varchar2(60)" > * > ERROR at line 1: > ORA-00942: table or view does not exist > > But the object exists as I am able to do a select on it. > > Please send me the procedure. I will try it out! > > baski > > -----Original Message----- > Sent: Thursday, June 12, 2003 5:05 PM > To: Multiple recipients of list ORACLE-L > > > 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. 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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).
