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Re: database design best pratice help

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Jose Soares wrote:
> I have a question about database design best pratice.
> 
> In my db I have about one hundred tables like this:
> 
> code
> description
> 
> To avoid to have a so great number of similar tables in the db
> I wonder if it is a good idea to unify all these tables in one big table
> like this:
> 
> id
> code
> table_ name
> description
> 
> The advantages are:
> 
> 1. only one table in the db instead of 100
> 2. only one controller to manage the table
> 
> Could this be a way to enhance db performance?
> Is there any negative point that I don't see?

If the resulting table grows to be big, that might be
a problem.  Imagine that a query has to do a sequential scan
for a certain query.

Also, are there no foreign key constraints between tables?
If no, the design is questionable.  If yes, how would you
handle them?

I guess it depends on what your application does, but I
wouldn't merge the tables.  One hundred tables are not so
terribly many.

Yours,
Laurenz Albe


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