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On the subject line the process to find the answer is not a short one! By design SQL Server engine takes care when the query optimizer generates a query plan, it analyzes what are the best indexes for a particular filter condition. If the best indexes...
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Recently there hasn't been much of SQL Server tasks for me, as most of the time I was involved on designing the solutions for larger installations - a 8 node cluster or VLDB configuration etc. Ok I admit that still it can be classified as SQL Server...
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I had been receiving a good feedback about the solution that has been posted previous about Script to perform database backup, restore and optimization tasks without maintenance plans - SQL Server 2008 and inline link for SQL Server 2005 too. In fact...
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I have seen few users out there thinks that Deadlocks in SQL Server is a bug which has not be corrected by Microsoft since its release! Even few times they get think that deadlocks and blocking are similar reactions in SQL Server, a typical situation...
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During an Usergroup meeting one user asked the question that why my query is affected with slow performance when the statistics are upto-date? When asked about the indexes the reply was why do you need indexes when you have updated statistics on all the...
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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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