Oracle-L: Re: Table Design

From: Omar Khalid <okhalid_at_lmkr.com>
Date: Tue, 29 Oct 2002 22:53:35 -0800
Message-ID: <F001.004F7169.20021029225335@fatcity.com>

hi deepa

i think Option-2 is a better choice if you want to go for retrieval speed. but this depends on the types of query you will perform on that table. generally joins are too costly speed wise so option-1 one seems less efficient i mean more the table joins in u'r query the slower will be the retrieval of data.

regards

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Omar Khalid
Software Engineer
LMK Resources
Voice: 111-101-101*780
Mobile: 0333-510-4465
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                    PK_Deepa/VGIL_at_vguard.sat                                                                            
                    yam.net.in                     To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>  
                    Sent by:                       cc:                                                                  
                    root_at_fatcity.com               Subject:     Table Design                                            
                                                                                                                        
                                                                                                                        
                    10/30/2002 11:28 AM                                                                                 
                    Please respond to                                                                                   
                    ORACLE-L

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

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Author: Omar Khalid
  INET: okhalid_at_lmkr.com

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Received on Wed Oct 30 2002 - 00:53:35 CST