The first one is the number of secondaries that has been increased from four to eight, but the number of synchronized secondaries is still two. The second one is that it now allows FCI customers to configure CSV paths for system and user databases. Stack Overflow’s Recovery Strategy – Brent Ozar updates you on how they’re using AlwaysOn AGs for higher performance and availability. In order to reduce sql server 2014 new features for dba latency, transactions can be defined as delayed durable, which means that transaction returns control to
the client before the Transaction Log record is written to disk. Also readable secondary replicas now remain available for reading on cluster quorum loss or when
a primary replica is down. You can read more about Memory-Optimized tables and Natively Compiled Stored Procedures
in
my previous tips.
These features may be available already outside SQL Server such as own Power Pivot and Power View. However, the biggest difference is that Hekaton is built directly into SQL Server, so that there are no extensions, downloads, or interfaces that can slow down the very program meant to help increase your speed. As an example, login with CONTROL SERVER permission can be disallowed from impersonating other logins. If this permission is denied, a high privileged login can be stopped from impersonating any other logins. For more information on this please review this article on Resource Governor Resource Pool and on one how to create a RESOURCE POOL with T-SQL. With SQL Server 2014 you have a new ability introduced to the table.
Storage I/O control
The setting MAX_OUTSTANDING_IO_PER_VOLUME which is available through ALTER RESOURCE GOVERNOR will set the maximum number of IO operations per disk volume. In terms of enhancements brought to these features, we have a detailed article that already covers these areas, here. SQL Server Data Files in Windows Azure will enable you to store native SQL Server database files as Blob files on Windows Azure. SQL Server 2022 supports
S3-compatible object storage to take backups to URLs and Data Lake virtualization. Microsoft also has multiple editions available within each version. There
are 5 edition levels and each of the levels are geared towards different sized companies/applications.
Murilo Miranda continues his series by explaining how such an index is unlike a conventional index. SQL Server 2014 comes with a set of enhancements as compared to its processors that brings a lot of business benefits to the applications in OLTP and OLAP environments. This article highlights a few key enhancements that are built into the product. The new SQL Server Data Tools for BI (SSDT-BI) is used to create SQL Server Analysis Services (SSAS) models, SSRS reports, and SSIS packages. The new SSDT-BI supports SSAS and SSRS for SQL Server 2014 and earlier, but SSIS projects are limited to SQL Server 2014.
Power BI for Office 365 Integration
The Windows Azure backup integration is also fully built into SQL Server Management Studio (SSMS). SQL Server 2014 provides a new solid state disk (SSD) integration capability that lets you use SSDs to expand the SQL Server 2014 Buffer Pool as nonvolatile RAM (NvRAM). With the new Buffer Pool Extensions feature, you can use SSD drives to expand the buffer pool in systems that have maxed out their memory. Buffer Pool Extensions can provide performance gains for read-heavy OLTP workloads.
The main new feature in SQL Server 2014 is In-Memory OLTP, which grants you a significant speed improvement. This flagship feature stores all the data in the memory to improve access time – which is now nearly 1000 times faster than that of a hard drive disk. You can also choose to duplicate the data into the disk to make it persistent. We publish insightful articles about new products, best practices and trends; readers help each other out on various database questions and problems. Database management systems (DBMS) and database security processes are also key areas of focus at DatabaseJournal.com.
Updatable Columnstore Index
In SQL Server 2014 you will now be able to use two new settings to take better control of your resource pool’s physical IO calls which are issued for user threads with MIN_IOPS_PER_VOLUME and MAX_IOPS_PER_VOLUME. SQL Server 2022 allows us to enable Query Store on secondary replicas. This is
very useful when you have different workload types amongst the primary and the secondary
replicas.
