When do you need data partitioning? The data you see in relational database may need such a strategy if the volume is huge, for instance the data to store event-log information having the schema such as: [Id] INT (make this primary key clustered), [Unit_Id] UNIQUEIDENTIFIER, [EventType_Id] UNIQUEIDENTIFIER...
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03-12-2008
Filed under: sql server, performance, indexes, data, backup, bi, database, statistics, partition, monitoring, strategy, data warehouse
Recently we have had problems on one of the database that is used on 24/7 basis where a ETL process to import and export millions of rows on few tables has been taking longer time to finish. Further the SELECT queires on reports are timed-out and smaller queries are taking more time to finish. First...
The following pages were recently modified. Source: Knowledge Base Product: Microsoft SQL Server 2005 Standard Edition Notification Contents: New and All Modifications FIX: The merge agent does not use a specified custom user update to handle conflicting UPDATE statements in SQL Server 2005 http://support...
Interesting newbie question on the forums to share. I am selecting a value from a table(column).I do not want any 2 users can select same value at the same time..in other word 1 value only be selected by individual user. in order to do it I am simply using with (xlock) in select statement within begin...
PARALLELISM is a close friend of DBA where you get to see it as a common occurence in the multi-processor server environment and during such performance issues you can also investigate whether a parallel plan is in use. For instance If a particular query is slow when it is using a parallel plan, you...
USE <database_name>; GO SELECT s.name AS statistics_name ,c.name AS column_name ,sc.stats_column_id FROM sys.stats AS s INNER JOIN sys.stats_columns AS sc ON s.object_id = sc.object_id AND s.stats_id = sc.stats_id INNER JOIN sys.columns AS c ON sc.object_id = c.object_id AND c.column_id = sc.column_id...