is the relational database and ADO.net scalable enough to work on huge application that have millions of users -

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from experience in industry found many companies avoid using relational databases , ado.net interact database. instead use flat databases , write sql statement directly against database ,, since believe having many tables linked using foreign keys , using ado.net interact db have serious performance drawbacks on large application have millions of transaction per day.,, these points valid?

no, these point not valid (in scenarios).

relational databases faster in large datasets because of relations. (unless of course have huge list of non-relational data , frankly, datasets not relational in huge application these days?)

stackoverflow.net example gets 7 million page views day , built on relational database.

also, please see answer more. similar discussion: database vs. flat files

edit: huge mean millions of transactions per day.... :) edit: removed ef reference.


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