Script.
DECLARE @IndexinfoFor VARCHAR(100) SET@IndexinfoFor = 'dbo.AnyTableName' SELECTIndex_id, user_seeks, user_scans, user_lookups, user_updates, last_user_seek, last_user_scan, last_user_lookup, last_user_update, system_seeks, system_scans, system_lookups, system_updates, last_system_seek, last_system_scan, last_system_lookup, last_system_update FROMsys.dm_db_index_usage_stats WHEREobject_id = object_id(@IndexinfoFor) SELECTmic.*, mid.Equality_columns, mid.Inequality_columns, mid.Included_columns, mid.Statement, migs.Unique_Compiles, migs.User_Seeks, migs.User_Scans, migs.Last_User_Seek, migs.Avg_Total_User_Cost, migs.Avg_User_Impact, migs.System_Scans, migs.System_Seeks, migs.Last_System_Scan, migs.Last_System_Seek, migs.Avg_total_system_Cost, migs.Avg_system_Impact FROMsys.dm_db_index_usage_stats ius LEFT OUTER JOIN sys.dm_db_missing_index_details mid ONius.object_id = mid.object_id CROSS APPLY sys.dm_db_missing_index_columns(mid.index_handle) mic LEFT OUTER JOIN sys.dm_db_missing_index_groups mig ONmid.index_handle = mig.index_handle LEFT OUTER JOIN sys.dm_db_missing_index_group_stats migs ONmig.index_group_handle = migs.group_handle WHEREius.object_id = object_id(@IndexinfoFor)
For most DBAs, normalization is an understood concept, a bread and butter bit of knowledge. However, it is not at all unusual to review a database design by a development group for an OLTP (OnLine Transaction Processing) environment and find that the schema chosen is anything but properly normalized. This article by Brian Kelley will give you the core knowledge to data model.
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What's this error:Arithmetic overflow error converting IDENTITY to data type int? It was a new one to me, but read on to find out what it means.
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This article shows you how to design the storage for email addresses, how to validate email addresses, how to retrieve demographic information from email addresses efficiently, using computed columns and indexes. It also covers the security aspect of dealing with email addresses.
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Binary data can be stored as integers in a table. This article explains how to query an integer field to return the bits represented by the integer.
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This article demonstrates how to store checkbox results as integers in a database...perfect for surveys!
2002-06-27
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