Socarates扩展了这个功能,变为resilient buffer pool extension(RBPEX),支持宕机重启后恢复buffer pool,相当于变成了一个可恢复的page cache,它应用于计算层和存储层(page server),它可以大大减少恢复时间(MTTR),也意味着重启后需要apply的log更少,变相提升了availability。 RBPEX利用内存存储引擎Hekaton的table实现,...
In this quickstart, you install SQL Server on Red Hat Enterprise Linux (RHEL), SUSE Linux Enterprise Server (SLES), or Ubuntu in the cloud of your choice. To run SQL Server on Linux in Azure, see Provision a Linux SQL Server virtual machine in the Azure portal. Note If you choose to...
通过把Page Server与XStore分离,可以把Page Server看做是一层高速的cache(有RBPEX)。 从整体上看这个架构,其实XLOG/XStore是系统中的持久化存储,计算节点/Page Server可以看做是提供可用性的cache,即使计算节点/Page Server失效了,数据也不会丢失,因为log还在XLOG和XStore里,而data也在XStore中形成了备份。这样就...
Socarates，微软在SIGMOD 2019上发布的云数据库，借鉴Amazon Aurora的存储计算分离架构，并进一步分离数据库日志，实现持久性和可用性的独立管理。传统数据库耦合存储和计算，导致灵活性受限。Socarates通过分离架构，提升云环境下的安全性、可用性和成本效益。此设计允许用户根据需求权衡成本、性能和可用性。存...
Run SQL Server on Windows or as a Virtual Machine in Azure Choose your installation setup Linux Run SQL Server 2022 on Linux Choose your installation setup Docker Run SQL Server 2022 container image with Docker Choose your installation setup ...
这张图描述了left join(左连接)、right join(右连接) 、inner join(内连接)、outer join(外连接)相关的7种用法。 我改了一版: 感觉更方便理解了 可以关注我公众号,回复“mysql”,可以拿到高清大图 二、四种JOIN的区别 1、INNER JOIN:如果表中有至少一个匹配,则返回行; ...
Socrates: The New SQL Server in the Cloud Panagiotis Antonopoulos, Alex Budovski, Cristian Diaconu, Alejandro Hernandez Saenz, Jack Hu, Hanuma Kodavalla, Donald Kossmann, Sandeep Lingam, Umar Farooq Minhas, Naveen Prakash, Vijendra Purohit, ...
SQL Server具有地理数据类型,可用于存储地理空间数据。 What are the case sensitivity differences between PostgreSQL and SQL Server? Compare index types in PostgreSQL vs. MSSQL 中文:大小写敏感问题比较 PostgreSQL区分大小写来进行字符串比较。LOWER()函数允许用户将字符串转换为全小写以进行比较(还有类似的UPPER...
SQL Server 2022: The cloud-connected database (Ep.2) | Data Exposed with Marisa Brasile, Anna Hoffman Data Exposed Dec 2, 2021 Everyone is looking for hybrid solutions in today’s world. SQL Server 2022 comes with built-in capabilities to leverage the power of Azure. Come learn more...
I must confess that when I hear the phrase "in the cloud" I immediately picture white fluffy clouds with desktop computers, complete with monitors and keyboards strewn about. I'm not sure where this image originated because I know that Microsoft has datacenters worldwide that are situated ...