By Lori Brown | Miscellaneous , SQL Administration , SQL Server
Available in SQL Server 2014 – All Editions Delayed Durabilty is a way to defer the acknowledgement of the transaction log records getting written to disk, i.e. transactions can continue without waiting, and SQL will assume that the log record *will* be written. You may know the ACID rules (Atomicity, Consistency, Isolation, Durability) that guarantee […]
Continue readingBy Lori Brown | SQL Administration , SQL Server
Available in SQL Server 2014 Enterprise Edition In-Memory OLTP is a new lock-free, latch-free, optimistic concurrency approach to storing data in memory. While it may seem reminiscent of DBCC PINTABLE is it definitely not the same since data in memory-optimized tables is not organized in pages, and does not use the Buffer Pool. It is […]
Continue readingBy Ginger Daniel | Performance Tuning , SQL Administration , SQL Server , Windows
Recently, a client of mine contacted me in a panic because almost all of the memory on the SQL server was used up…according to Task Manager, that is. Don’t panic…task manager is probably lying. Well, a little bit anyway. And Task Manager is just that, a task manager. If you are looking at it to […]
Continue readingBy Ginger Daniel | Installation , SQL Administration , SQL Server
After you make sure you have everything in your environment ready to go and all the prerequisites that need to be done before deployment have been done, we are ready to install the AlwaysOn Availability Group! The following steps need to be performed in this order: Add Windows Failover Clustering (WSFC) to each replica (server) […]
Continue readingBy Ginger Daniel | Installation , SQL Administration , SQL Server
Before implementing your AlwaysOn Availability Group, make sure you have everything in your environment ready to go. There are several prerequisites that need to be done to ensure a successful deployment. These prerequisites focus on your Windows environment, the SQL instances, and the databases to be included in your AlwaysOn group. Windows: Windows Server 2008 […]
Continue readingBy Ginger Daniel | SQL Administration , SQL Server
AlwaysOn is a great new feature in SQL Server 2012 and 2014 Enterprise edition. It has been described as the next evolution of database mirroring. AlwaysOn enhances the existing technologies of database mirroring and failover clustering to provide a strong layer of high availability and disaster recovery. The way it works is that you have […]
Continue readingBy SQLRx Admin | Performance Tuning , SQL Administration , SQL Server , Tip of the Month
SQL Server Performance Tuning: Create indexes with included columns. I recently did some tuning work on a query that has computed columns in the SELECT. While the index that was being used by the query did contain columns used in the query’s WHERE clause performance was still not as fast as it could be. I […]
Continue readingBy SQLRx Admin | SQL Administration , SQL Server , Tip of the Month
SQL Server Administration: Every so often someone will call with a terrible problem because a drive was lost or someone mistakenly deleted transaction log files. When this happens, the affected databases are not useable and are usually marked as SUSPECT or IN RECOVERY in Management Studio. Usually the best option is to restore the database […]
Continue readingBy SQLRx Admin | SQL Administration , SQL Server , Tip of the Month
SQL Server Administration: Restore a database from one file or multiple files. Use these commands to restore your databases. Practicing restoring databases proves that the backup files are usable and will polish up your skills so that you are ready to restore in the event of a crisis. If you have to restore database files […]
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