Upgrade SQL server to increase processing speed

Question

I have connected SQL server to my web service and currently the number of records being processed by a particular table has increased on a large scale. As a result of deleting and inserting into this table, the performance has gone down. Are there any
suggestions on how existing SQL server can be updated to increase the performance? Currently im using SQL server Enterprise edition 2012. Only a single server is been used with no replications. Please advice.
mayooran99

Answer 1

Hi
First of all, check out for fragmentation due to massive insert/delete operation an index is out of order
SELECT avg_fragmentation_in_percent FROM sys.dm_db_index_physical_stats
  DB_ID('testdb'),
  OBJECT_ID('dbo.T1'),
  1,
  NULL,
  NULL
What does the above return?
To rebuild index/es
--single index
ALTER INDEX IX_Str ON tblname
REBUILD;
GO
--all indexes on the table
ALTER INDEX ALL ON tblname
REBUILD WITH (FILLFACTOR = 80, SORT_IN_TEMPDB = ON,
              STATISTICS_NORECOMPUTE = ON);
GO
More over to speed up the query you need to have properly defined indexes on the table.
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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