Tag: performance

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Tips for using SQL Server 2012 Query Hints

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Tips for using SQL Server 2012 Query Hints If your query is very slow, try the following before using query hints: – rebuild indexes used in the query (or defragment them using DBCC INDEXDEFRAG), – update statistics on the relevant tables, – consider creating new indexes for this query, – rewrite your query to provide better execution plan. Use the...

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Tips for using jobs in SQL Server 2012

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Tips for using jobs in SQL Server 2012 Specify the understandable job name. Try to specify the job’s name so, that the name describes what the job makes. By using so, you can simplify jobs administering and monitoring. Try to separate very large job into several small jobs. This can improve performance, and can be useful to maintenance the jobs...

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Tips for using views in SQL Server 2012

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Tips for using views in SQL Server 2012 Keep the indexes on the views as narrow as possible. Because each index takes up disk space try to minimize the index key’s size to avoid using superfluous disk space. This reduces the number of reads required to read the index and boost overall index performance. Consider using indexed views. Indexed views...

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Tips for using Very Large Databases in SQL Server 2012

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Tips for using Very Large Databases in SQL Server 2012 Use distributed partitioned views to partition tables horizontally across multiple servers. By using distributed partitioned views you can greatly improve the very large database performance. Turn off the "automatically grow file" and "auto shrink" options for your very large database. Autogrowing and autoshrinking result in some performance degradation, therefore you...

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Tips for using SQL Server 2012 file and filegroups

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Tips for using SQL Server 2012 file and filegroups Microsoft SQL Server 2012 introduces many new useful stored procedures, functions and operators. Some actions you can perform without these new features, but usually using them provides more easy and effective way to accomplish the same goal. For example, Microsoft introduces SQL Server FILESTREAM technology that enables SQL Server-based applications to...

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SQL Server 2012 Linked Servers Optimization Tips

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SQL Server 2012 Linked Servers Optimization Tips Try to avoid the ad hoc queries that use the OPENROWSET or the OPENDATASOURCE functions to access remote data. Create a linked server and perform a linked server’s query instead of using an ad hoc query with OPENROWSET or OPENDATASOURCE functions. Using the linked server’s queries to access remote data is more efficient...

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Tips for using SQL Server 2012 User-Defined Functions

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Tips for using SQL Server 2012 User-Defined Functions If you want to invoke a stored procedure directly from a query and this stored procedure returns a scalar value, consider replacing a stored procedure with a scalar user-defined function. A stored procedure cannot be invoked from the SELECT statement, but if you need to invoke some code inside the query, try...

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Tips for using SQL Server 2012 Join Hints

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Tips for using SQL Server 2012 Join Hints If you want to set any join hints, do not remember to test the query with hint and without the hint and compare results. Because SQL Server 2012 query optimizer usually proposes the best execution plan, you should test the query with join hint and use this hint only when it provides...

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Tips for using SQL Server 2012 Merge Replication

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Tips for using SQL Server 2012 Merge Replication SQL Server 2012 introduces AlwaysOn Availability Groups. This is a high-availability and disaster-recovery solution that provides an enterprise-level alternative to database mirroring. AlwaysOn Availability Groups maximizes the availability of a set of user databases for an enterprise and supports a failover environment for a discrete set of user databases, known as availability...

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