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It is no doubt that when a database consists ' well-designed ' indexes can reduce disk I/O operations and consume fewer system resources therefore improving query performance. You might be wondering I'm going back to basics for indexes! So...
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In general it is not a best practice to perform SHRINK database operation on a production server, atleast regularly! Sometimes it may be compulsory to keep them sized in order to ensure the disk storage is not compromised for any sudden changes to databases...
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Geography & Geometry has much significance in day to day life, within that as a data now you can manage within your Database using SQL Server 2008 new data type - spatial, this represents information about the physical location and shape of geometric...
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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...
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In order to keepup the database logical and physical integrity of all the objects, you must run the DBCC statement such as DBCC CHECKALLOC, DBCC CHECKTABLE and DBCC CHECKCATALOG. Overall you can do this with another statement DBCC CHECKDB that will avoid...
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When it comes to performance, for a DBA indexes are the first one to come to mind in order to fine tune the tasks on the database. In this series we have already covered this huge topic of indexing and how best you can make use of Dynamic Management Views...
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As a programmer interacting with SQL Server's cache is not often needed, but when you do need to determine what is going on with the cache, or you simply need to flush the execution plans or data pages to tune a query, you now have the means to do...
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One of the best features you have in the SQL Server is to create database data file (additional) on fly without having a slow performance affect on existing connections. But think about how SQL Server manages to use server threads for the data file that...
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Though it is not a best practice to perform a CREATE INDEX on large tables during the online hours where you have number of users accessing the metadata of SQL Server database. Within SQL Server 2005 Enterprise Edition you can perform ONLINE indexes operation...
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Re-organizing or rebuilding index would help the SQL optimizer to reduce the fragmentation for a better performance. In this case few users might have doubt that when to rebuild or reorganize (SQL Server 2005)? IN the series of Performance blog posts...
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It is an universal truth in the database field that due to the fragmentation and page split the performance will be affected even for a simple [ SELECT <ColumnName> from.... ] type of query. So what you need to check or take action in terms of DBA...
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May 25 2007- From the snippet of Tibor Karaszi , SQL Server MVP I have raised a feedback form on Connect.Microsoft website to get newer version (SQL Server 2005) about Index Defragmentation Best practices information. Vote your interest to get newer documentation...
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Here is the incentive for the SQL Server users (this new year), you may be aware then using SP_HELPINDEX or SP_HELP could give some part of information on the indexes and database objects. But to know more about depedant columns you need to query INFORMATION_SCHEMA...
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Do you have a large ETL process to finish on day-to-day basis? Is your ETL process is suffering with performance loss during the BULK insert or export task? Are you using SQL Server 2005? If it is YES for all the above then you can take advantage of SQL...
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Have you ever performed huge operations such as deleting records of a table and processing inserts on that table at the same time? This is a common task that every application will have to perform and you can avoid by fine tuning your queries (mostly...
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