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性能最高提升 16.5 倍：微软推 mssql-python 驱动，碾压主流方案 pyodbc

IT之家 8 月 13 日消息，科技媒体 NeoWin 昨日（8 月 12 日）发布博文，报道称微软正式发布自家 SQL Server Python 驱动 mssql-python，并声称其在性能、内存安全和跨平台兼容性等方面，远超当前业界主流 pyodbc。 IT之家注：pyodbc 是业界常用的 Python 语言 SQL Server 数据库 ...
Redmond Magazine

Deep Dive into SQL Server 2022's Query Performance Features, Part 2: PSP Optimization

In part 1 of my SQL Server 2022 features series, you learned about the improvements to the cardinality estimator component of query optimization. In this installment, you will learn about another ...
dbta

Adaptive Query Processing in SQL Server 2017

In SQL Server 2017, when the query optimizer encounters code with a multi-statement TVF, the query optimizer will pause optimization, execute the TVF subtree to get a very accurate cardinality ...
Redmond Magazine

A Deep Dive into SQL Server 2022's Query Performance Features, Part 1

An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception. Database engines like SQL Server are incredibly complex ...