Try using select avg(nvl(vsize(<column_name>),1)+nvl(vsize(<column_name>),1)+.....) from <table_name>;
And yes columns that have a null value do mess things up. Dick Goulet ____________________Reply Separator____________________ Author: "VIVEK_SHARMA" <[EMAIL PROTECTED]> Date: 10/3/2001 1:50 PM How is the the Length of any ROW in a Table/Index Manually Calculated ? NOTE - Corresponding Table's Feild Definitions are known Do Data Values within the Fields / Null cause Different ROW Lengths ? NOTE I do know about Feild AVG_ROW_LEN of sys.dba_tables which is populated on ANALYZE -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: VIVEK_SHARMA 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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: 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).
