Hi
We have a application running on Sql server 2005, which require to browse/search text field. Does anyone know if Sql server's search/browse performance on text field is better than oracle?
The table the application will search on is a customer table that has a 10000 records in it, does this size of table casue a performance problem for sql server 2005 if I index the text field?
Please advise, thanks for your help!
Li
Id it a TEXT field or a field with characters stored in it ? How much data can be stored in the attribute ?
Jens K. Suessmeyer
http://www.sqlserver2005.de
|||Actually it is text field with 10 character length
|||
Well 10k rows is not that much. It could be that SQL Server will even cache the rows or do a table scan rather than touch the index. but in terms of planning for the future, you should consider using an index if the attribute is queried a lot.
Jens K. Suessmeyer
http://www.sqlserver2005.de
|||did u tried to create an index that match the search queryfind below steps of choosing the most needed indexes
The following query will get the 10 missing indexes would produce the highest anticipated cumulative improvement, in descending order, for user queries.
SELECT TOP 10 *
FROM sys.dm_db_missing_index_group_stats
ORDER BY avg_total_user_cost * avg_user_impact * (user_seeks + user_scans)DESC
You can get the missing index details in the following way:
The following query determines which missing indexes comprise a particular missing index group, and displays their column details.
For the sake of this example, the missing index group handle is 24.(You will need to change the handle value with handle values which comes up from the earlier query)
SELECT migs.group_handle, mid.*
FROM sys.dm_db_missing_index_group_stats migs
INNER JOIN sys.dm_db_missing_index_groups mig
ON (migs.group_handle = mig.index_group_handle)
INNER JOIN sys.dm_db_missing_index_details mid
ON (mig.index_handle = mid.index_handle)
WHERE migs.group_handle = 24 <<put your handle value here>>
For details on this refer to the following articles:
http://msdn2.microsoft.com/en-us/library/ms345421.aspx
Using Missing Index Information to Write CREATE INDEX Statements
http://msdn2.microsoft.com/en-us/library/ms345405.aspx
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