Demoing Latch Waits with Stupid Tricks
Stuffing table variables with hard-coded values to demonstrate concurrency.
2018-06-22
2,793 reads
Additional Articles
In-Memory OLTP – Common Workload Patterns and Migration Considerations
In-Memory OLTP is a high performance, memory-optimized engine integrated into SQL Server 2014 and designed for modern hardware trends. In-Memory OLTP allows users to move data into memory resident tables while keeping other data in traditional, disk-based table structures. For performance critical workloads, users can also migrate Transact-SQL code to natively compiled stored procedures. This can provide additional performance gains. This paper aims to help readers understand some of the common architectural patterns where In-Memory OLTP has provided significant benefits. The paper also discusses considerations for migrating applications to In-Memory OLTP.
2018-06-22
2,677 reads
In-Memory OLTP – SQL Server In-Memory OLTP Internals Overview
In-Memory OLTP (project “Hekaton”) is a new database engine component, fully integrated into SQL Server. It is optimized for OLTP workloads accessing memory resident data. In-Memory OLTP allows OLTP workloads to achieve significant improvements in performance, and reduction in processing time. Tables can be declared as ‘memory optimized’ to enable In-Memory OLTP’s capabilities. Memory-optimized tables are fully transactional and can be accessed using Transact-SQL. Transact-SQL stored procedures can be compiled to machine code for further performance improvements on memory-optimized tables. The engine is designed for high concurrency and blocking is minimal.
2018-06-21
2,997 reads
Databases with MAXSIZE Set
Every DBA needs to appropriately manage database growth. No DBA wants an application to fail because the database is out of space. A database can run out of space a number of different ways. One of those ways is to set the MAXSIZE of a database. When the database grows to the MAXSIZE the database will not grow anymore and if someone tries to add more rows they will get an error saying the database is full.
2018-06-19
2,410 reads
Hyper-V and PowerShell: Shielded Virtual Machines
In Windows Server 2016, Microsoft have implemented a strong security concept called Shielded Virtual Machines. Shielded VMs have been improved in the Windows Server 2019 release. In the second part of this series, Nicolas describes what Shielded Virtual Machines are and how to configure them using PowerShell.
2018-06-18
2,979 reads
Idle Connection Resiliency
Describes the idle connection resiliency feature, which allows ODBC and SqlClient data access applications to maintain their connections to SQL Server 2014 or an Azure SQL Database.
2018-06-18
2,632 reads
How to Tell If Your SQL Server Has Too Much Memory
Brent shows what Perfmon counter to watch after your SQL Server restarts.
2018-06-15
5,646 reads
Using Regular Expressions With T-SQL: From Beginner To Advanced
Its possible to use some comparable expressions to a full regular expression library for matching certain patterns with T-SQL using the like operator. This tutorial uses these expressions for filtering price phrases involving alphabetic, numeric, and special characters
2018-06-14
4,713 reads
Data Governance, DevOps, and Delivery
Data governance must be included in DevOps practices. William Brewer explains how to define business policies and standards to ensure compliance with privacy regulations and bring data governance to all aspects of continuous delivery.
2018-06-13
2,693 reads
Indexes That Have Not Been Used but Are Being Updated
Greg Larsen talks about how indexes that are not being used are costing you valuable resources and causing your update statements to run longer.
2018-06-12
3,648 reads
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Question of the Day
BIT_COUNT() V
What does this return on SQL Server 2025?
select bit_count(null)See possible answers