Accelerated Database Recovery (ADR) was introduced in SQL Server 2019. Its main purpose is to allow for faster database recovery in the event of a crash or unexpected shutdown. Traditionally, the database engine handles crash recovery through a series of phases—analysis, redo, and undo—which can be inefficient and slow, especially when dealing with long-running transactions. … Read more
IMPORTANT NOTE: This requires SQL Server 2017 or newer, Query Store and Enterprise/Developer edition. In SQL Server 2016, we were given the Query Store feature, and all the perf tuners rejoiced. Finally we had a great tool to help us with SQL Server parameter sniffing issues. These days, any time I work on a parameter … Read more
Period(*). I have two motives here. One – I liked the title and I’ve been having fun with titles lately (A couple weeks ago it was the true story of a SAN Failure with “Yes, Virginia, SANs Can Fail“). Two – it’s a good reminder and a couple recent conversations brought it up so I … Read more