Optimization of database

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I have a table named MetricTbl with fields as User_Id, Entity, Metric, ModifiedDate, Value. Value, UserId are integer. Entity and Metric are nvarchar. Table has around 30 million rows.

I want to optimize the query -

SQL

select SUM(Value) from MetricTbl where UserId = 1 and Entity = 'Room' and Metric = 'Temperature'

I have to design a strategy for this kind of query. I am using azure federation. And this is a federated table.
I already created unique index on User_Id, Entity, Metric, ModifiedDate. Since it is azure federation so I cant have indexed views.
Please suggest some strategy.
If there is need I am allowed to create new table.
Thanks
Manish

Posted 27-Nov-13 21:12pm

ManishKr1608

Updated 28-Nov-13 3:18am

gvprabu

v2

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Maciej Los · Answer 1 · 2013-11-27T21:52:00

Solution 1

I would suggest you to use stored procedure[^] instead above query ;)
for example:

SQL

CREATE PROCEDURE GetSumOfUser
    @userid INT,
    @entity varchar(30),
    @metric varchar(30)
BEGIN
    SELECT SUM([Value])
    FROM MetricTabl
    WHERE userid = @userid AND entity=@entity AND metric =@metric
END

Useful articles:
Optimization Techniques for Windows Azure Role Sizes and Databases[^]
Windows Azure SQL Database Performance and Elasticity Guide[^]
Best Practices for Performance in Windows Azure Applications[^]

Posted 27-Nov-13 21:52pm

Maciej Los

Comments

Sergey Alexandrovich Kryukov 28-Nov-13 3:57am

Good points, a 5.
—SA

Maciej Los 28-Nov-13 3:59am

Thank you, Sergey ;)

ManishKr1608 28-Nov-13 7:18am

Thanks Maciej Los,
I will read the links and try out with procedures. Let you know the findings...
Regards,
Manish

gvprabu 28-Nov-13 9:16am

good collections....

Maciej Los 28-Nov-13 9:32am

Thank you, Gopal ;)