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Topic: DBMS for great volume of the relational data (Hadoop vs MS SQL / Oracle)

All greetings;
There is a big database. Well as big - 5-6 , thus it grows in a year approximately on 0,5. 1 . The data is well structured, i.e. it is relational basis. Any images, files and so forth - only tables with numbers and letters. It is necessary to do show-windows of them, and then the reporting.
Question:
Whether has sense to look aside Hadoop?
We now have MS a SQL Server + a disk stand where the data is arranged between disks, i.e. it is good . Whether gives Hadoop any advantages?
Thanks.

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Re: DBMS for great volume of the relational data (Hadoop vs MS SQL / Oracle)

I will quote myself.
[quote =] Most likely BigData begins not from amount DataRows/Documents/Tuples.
And from certain other initial conditions. For example:
- Data  (roughly speaking is not present desc table which gives a meta information about that that inside)
- The given steels historical (or change so rarely that is possible for these )
- There is a possibility to apply to the analysis a template "display-convolution" and is horizontal
- Usage classical relational DBMS for the analysis of this data is unprofitable for various reasons