Almost Everything You Need to Know About SQL Server 2014

This means that you can move your storage into the cloud while keeping all the transaction processing on your local server. Furthermore you can enable
Transparent Data Encryption on databases while keeping the encryption key on the local server for added security. Microsoft declared that for some queries, the columnstore indexes can show improvements of up to 1000% (10 times).

This puts IT professionals in a situation where we must
decide if updating to the latest version is worth the time and costs. To help with
this decision, this tip provides a list of key features (by category) that are new
or have been enhanced in the latest version, SQL Server 2022. Are you tired of bottlenecks caused by heavy workloads on TempDB? You can now move the tempdb’s system tables into memory-optimized tables taking the pressure off your disks. The good news it’s really simple to enable and makes TempDB more scalable. The bad news is that it requires a service restart to take effect and there are some limitations.

How to Implement In-Memory OLTP Quickly and Easily

Database recovery can take a significant amount of time and be a struggle to complete on time due to active long-running transactions. Managing transaction log growth, so it doesn’t run rampant has also been known to cause many headaches. With SQL Server 2019, the log truncation process is much more aggressive to help keep it from ballooning out of control sql server 2014 new features for dba and taking up all your disk space. When enabled, ADR uses a Persisted Version Store for tracking changes that allow for rolling back long-running transactions instantaneously. It doesn’t matter how long the transaction has been running or how large they are either. For a system that uses partitions – we can now create unique statistics for each partition.

These tables are also versioned so that concurrent reads and writes are supported with reduced locking. A non-durable, memory only table is also supported – but in case of a crash all data in these tables will be lost. This feature can improve performance substantially but there is a small window where a crash may cause data loss.

In-Memory OLTP – Row Structure and Indexes

The AMR tool has support for collecting data from instances of 2008 and later versions. This is how you can get a good idea of the improvements you can get and also the changes you might need in order to implement this. Well, moving to a new release is most of the time a difficult decision for organizations. Delayed durability in the context of a transaction is when a transaction will return the control to the client before the transaction log has been saved to disk. This durability feature can be controlled at multiple levels, database, COMMIT, or ATOMIC blocks.

• 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.
• Multiple cluster nodes can be connected to the same volume at the same time, but each node can access different files on the drive independently.
• This engine has been designed to deliver increased concurrency and it has a brand new mechanism to control and eliminate delays due to locking with an optimistic concurrency control mechanism.
• They wanted even less predictability, so now they get Smart Backups.