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
Web: www.lmkr.com
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yam.net.in To: Multiple recipients of list
ORACLE-L <[EMAIL PROTECTED]>
Sent by: cc:
[EMAIL PROTECTED] 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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