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POSQL Server: One Table with 400 Columns or 40 Tables with 10 Columns?
 

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  1. POSQL Server: One Table with 400 Columns or 40 Tables with 10 Columns?
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    <p>I am using SQL Server 2005 Express and Visual Studio 2008. </p> <p>I have a database which has a table with 400 Columns. Things were (just about manageable) until I had to perform bi-directional sync between several databases.</p> <p>I am wondering what arguments are for and against using 400 column database or 40 table database are?</p> <p>The table in not normalised and comprises of mainly nvarchar(64) columns and some TEXT columns. (there are no datatypes as it was converted from text files). </p> <p>There is one other table that links to this table and is a 1-1 relationship (i.e one entry relates to one entry in the 400 column table).</p> <p>The table is a list files that contained parameters that are "plugged" into a application.</p> <p>I look forward to your replies.</p> <p>Thank you</p>
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    1. USBelliez
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    1. COSo each user has a row in the table with properties set that govern how their instance of the application operates? So when you add a new area of functionality you have to add a bunch of columns and populate them with suitable defaults for each user? Why did you have to do the bi-directional sync? Is this the only trouble you had? What other activities are making this unmanageable?
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      1. USTrevor Tippins
    2. COThere is one central server and several client servers all running a local copy of the data. The clients need to merge any changes tot he central database. The server also needs to merge any changes made by the clients. Using the sync framework and following the examples for c# I had to specify all the columns that need synchronising. I also had to create some stored procs that also needed all the columns in code in several places. It got really unmanageable from then on!
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      1. USBelliez
    3. COSo, if understand correctly, a bunch of ini files was stored into DB. Are all 400 columns populated in each row, or mostly NULLS? Is it one row per user, or per what? Is this setup for one app or many random apps?
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      1. POSQL Server: One Table with 400 Columns or 40 Tables with 10 Columns?
      1. USDamir Sudarevic
 

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