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Posted by Erland Sommarskog on 02/16/06 10:08
Shwetabh (shwetabhgoel@gmail.com) writes:
> I have a very simple question.
> In what cases are relational databases necessary?
> Are they really necessary in cases where only a
> single type of query is to be performed based on one unique
> field or can we just put all fields together in a single database
> and just access them through that unique field?
There are plenty of alternatievs to relational databases. There are object-
oriented databases, there are probably still some hierarchical databases
around, and there are systems that uses flat files.
But the relational databases dominate the market, probably because they
have proven to be very good at handling large amounts of data.
--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx
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