Re: Re: Many columns (as FK) vs 3x more Columns (in the same table)

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I'm a little confused here.

You have a 15x3x3 set of data to display in a 3 column, 15 row datagrid?
Are you displaying a single value in each cell of the datagrid, or all 3 values for the cell? How many variables are needed to uniquely select a piece of data from that 3-dimensional space?

Can you provide a little more detail about the data?


On 09/19/2012 11:44 AM, Bruno Sandivilli wrote:
Anyone? Please.

2012/9/18 Bruno Sandivilli <bruno.sandivilli@xxxxxxxxx>

Hi, i strugling to decide what is the best choice:

I have a 15 row x 3 columns Flash DataGrid, it means, for each row i have
3 values.
To represent this in my Database, I could:

    1. Create 2 Tables : A Values table - with 3 columns ; and a Bill
    table (with 15 foreign keys, each one pointing to one row in the Values
    2. Create one Table with 45 columns (15 fields * 3 values for each

I want to know, wich is the best choice?
To manage my query, now i have a SELECT with a thousand of leftJoins.

This is the best choice?

How could I run a query wich will give all results linked, like:
( column_1_val_1, column_1_val_2, column_1_val_2,
   column_2_val_1, column_1_val_2, column_1_val_3,
  etc...) ?


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