You can have upto 32 columns to create one single Primary/Unique Key. Same no of columns can be used to create an index. Some other limits are as follows: Max Database Size : 512 Petabytes ( 1 Petabyte = 2 to the power 50) Max No of Tablespace ~= 2 Billion Max No of Datafile per Tablespace = 1022 Max No of Partitions Per Table = 64000 Max no of columns per Table = 1000 Max size of BLOB,CLOB,NCLOB = 4GB The list could be bigger and bigger ;-))) HTH, Rajesh -----Original Message----- Sent: Monday, March 19, 2001 4:11 PM To: Multiple recipients of list ORACLE-L Hello Gurus I just want to know the number of columns that can be combined to make a primary key(composite). I have a table with 16 columns of which I would like to make a combination 6 columns as a PK. The volume of records may be 10,000 or less. This table will be used to generate a report(thro a screen). Any suggestions on how to design the table TIA Regards Vishak -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Vishak 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: Rajesh Dayal 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).
