Have you done a conceptual data model ? Do all transactions have the same properties ? Do you have established any performance requirements ? Do you favor insert or read ?
If the 10 transaction type have the same properties I would definitively put them in one table. If your tests show that there is a performance problem you can use the partitionning option (needs the enterprise edition and $$$) then its transparent to your design. Splitting in 10 tables have the following drawback : - what if there is a new transaction type ? - have fun reporting on more than a transaction type ! - what if a transaction was inserted with the wrong transaction type ? (insert/delete) .... --- [EMAIL PROTECTED] a �crit : > Hello > > We are doing database design for a project. > We have 10 distinct transactions types and the total > number of records is > expected to be around 5,00,000 > taking all transactions together.We have normalised > the tables and decided > to store all of them together in a > single table identified by the transaction type and > other unique fields. > > We would like to know which option would be the best > so that we can > retrieve data most efficiently > Option-1. > Maintain 10 different tables for each > transaction type (i.e 500000 > records will be split among 10 tables) > Option-2 > Store all of them together in a single table > identified by the > transaction type and other unique fields. > > Regards, > Deepa > > > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: > 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). > ===== St�phane Paquette DBA Oracle et DB2, consultant entrep�t de donn�es Oracle and DB2 DBA, datawarehouse consultant [EMAIL PROTECTED] __________________________________________________________ L�che-vitrine ou l�che-�cran ? magasinage.yahoo.ca -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?paquette=20stephane?= 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).
