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Ms sql updating statistics

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We have been asked to reduce our maintenance window for the SQL Server off-line index rebuilds and updating statistics in order to keep our systems online longer.Is there a way to speed up off-line index rebuilds or updating statistics in SQL Server? This tip will explore two features to speed up SQL Server index and statistics maintenance.You can combine it with striping of backups, and also specify a separate cleanup time for the mirror. Database Backup @Databases = 'USER_DATABASES', @Directory = 'C:\Backup', @Mirror Directory = 'D:\Backup', @Backup Type = 'FULL', @Compress = 'Y', @Verify = 'Y', @Cleanup Time = 24, @Mirror Cleanup Time = 48 I have added support for backup encryption, lock priorities for online index rebuilds, online index rebuilds of partitions, and updating of statistics on memory-optimized tables in SQL Server 2014.Here is how you can back up a database using encryption: EXECUTE dbo.

Then there are other questions that get asked later on, in conversation. There is no essential difference between the statistics on an index and the statistics on a table.So what could go wrong, and what can be done to put things right?We’ll go through the most common problems and explain how it might happen and what to do about it.Before beginning, we'll briefly review the term maximum degree of parallelism for processors.The maximum degree of parallelism (MAXDOP) is defined as the maximum number of logical processors (CPUs) that SQL Server can use in a single query.Normally, you do not need to be too concerned about the way that your SQL Queries are executed.These are passed to the Query Optimizer which first checks to see if it has a plan already available to execute it. To do so effectively, it needs to be able to estimate the intermediate row counts that would be generated from the various alternative strategies for returning a result.If you need to optimise SQL Server performance, it pays to understand SQL Server Statistics.Grant Fritchey answers the 18 most frequently-asked questions about SQL Server Statistics: the ones we somehow feel silly asking in public, and think twice about doing so.The Database Engine keeps statistics about the distribution of the key values in each index of the table, and uses these statistics to determine which index or indexes to use in compiling the query plan.If, however, there are problems with these statistics then the performance of queries will suffer.