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SQL Server 2008
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SQL Server 2008 Administration
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Scalability of SQL Query
Scalability of SQL Query
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npranj
npranj
Posted Tuesday, November 06, 2012 6:50 AM
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Last Login: Wednesday, May 29, 2013 4:42 AM
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Hi, Can you help me understand how I can check the scalability of an SQL query.
- Nidhi
Post #1381547
George M Parker
George M Parker
Posted Tuesday, November 06, 2012 7:01 AM
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nidhis (11/6/2012)
Hi, Can you help me understand how I can check the scalability of an SQL query.
- Nidhi
What exactly do you mean by "check the scalability of an SQL query"? Are you interested in how many concurrent executions you can run, will it cause blocking, etc?
Here's a link to a query stress testing tool written by Adam Mechanic that might help:
http://www.datamanipulation.net/SQLQueryStress/
And perhaps read the following SQLServerCentral.com post on how to post a performance problem and add some additional detail to this thread.
http://www.sqlservercentral.com/articles/SQLServerCentral/66909/
Post #1381553
npranj
npranj
Posted Tuesday, November 06, 2012 9:50 PM
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Thank you - this helps
Post #1381786
peterdru401
peterdru401
Posted Tuesday, November 06, 2012 10:31 PM
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Scalability shows the dependency of performance on factors like the data volume i.e. data stored in a database
The response time of an SQL query depends on many factors. The data volume is one of them. If a query is fast enough under certain testing conditions, it does not mean it will be fast enough in production. That is especially the case in development environments that have only a fraction of the data of the production system.
It is, however, no surprise that the queries get slower when the data volume grows
in short we can say that if we want to improve scalability of a query we have to improve our SQL SERVER performance & capacity management
Post #1381791
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