Fixes for SQL Server 2012 & 2014 Online Index Rebuild Issue
There is a regression bug in SQL Server 2012 and SQL Server 2014 where, if you rebuild an index online in parallel, and you also experience a fatal error such as a lock timeout, you could experience...
View ArticleNew Trace Flag to Fix Table Variable Performance
It has long been established that table variables with a large number of rows can be problematic, since the optimizer always sees them as having one row. Without a recompile after the table variable...
View ArticleRecommended Intel Processors for SQL Server 2014 Workloads
If you are in the process of evaluating and selecting the components for a brand new database server to run an OLTP or DW workload on SQL Server 2014 Enterprise Edition, you have several initial...
View ArticleDatabase Server Hardware Trends
I think there are some very interesting trends happening with database server hardware and storage subsystems that warrant some continued study and analysis if you are a database professional. Even if...
View ArticleRecommended Intel Processors for SQL Server 2014 – March 2015
If you are tasked with evaluating and selecting the components for a brand new database server to run an OLTP or DW workload on SQL Server 2014 Enterprise Edition, you have several initial choices that...
View ArticleImproving Partition Maintenance with Incremental Statistics
SQL Server 2014 brought many new features that DBAs and developers looked forward to testing and using in their environments, such as the updatable clustered Columnstore index, Delayed Durability, and...
View ArticleIncremental Statistics are NOT used by the Query Optimizer
In my previous post on incremental statistics, a new feature in SQL Server 2014, I demonstrated how they can help decrease maintenance task duration. This is because statistics can be updated at the...
View ArticleHow not to call Hekaton natively-compiled stored procedures
Note: This post was originally published only in our eBook, High Performance Techniques for SQL Server, Volume 2. You can find out about our eBooks here. Also note that some of these things may change...
View ArticlePractical Processor Selection for SQL Server 2014/2016 OLTP Workloads
Probably not the CPU you're looking for. Imagine that you have just gotten management approval for a new on-premises, database server that will run a mission critical OLTP workload with SQL Server 2014...
View ArticleImproved Support for Parallel Statistics Rebuilds
One of the great ways to learn about bugs in SQL Server is to read through the release notes for Cumulative Updates and Service Packs when they come out. However, occasionally this is also a great way...
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