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RE: Single Code Table or Separate Code tables dilemma

From: Mandar Ghosalkar <MandarG_at_gsr-inc.com>
Date: Fri, 23 Mar 2001 18:55:52 -0800
Message-ID: <F001.002D6F59.20010323184527@fatcity.com>

i dont disagree with u. even i dont like the below mentioned implementations. i always prefer seperate tables. btw "lot of rows" is very subjective.

i dont know what u mean by "I have to have a table that contains every possible combination of SPLT and TYPE. ".

anyways, its a common practice to create surrogate keys to avoid composite foreign keys. imagine a structure flowing from master to detail with 20 sub levels one below other. ur last child table would have a foreign key with ~20 columns.

-Mandar

-----Original Message-----

Sent: Friday, March 23, 2001 8:16 PM
To: Multiple recipients of list ORACLE-L

I hate to be picky, but I don't like either of the solutions proposed below. For the first solution, that means that I would have to have the repeating values 'SPLT' and 'TYPE' in every row of the DOCTOR table, which is a table with a lot of rows in it.
For the second solution, I have to have a table that contains every possible combination of SPLT and TYPE.
Both solutions seem to be wasteful and clumsy. Please don't take this as a direct criticism of you, but I still don't see how a single code table can be implemented well using FK relationships.

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Author: Mandar Ghosalkar
  INET: MandarG_at_gsr-inc.com

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