Database数据的相关内容

文章 2017-10-18 来自：开发者社区

Azure SQL Database (22) 迁移部分数据到Azure Stretch Database

　《Windows Azure Platform 系列文章目录》　 Azure SQL Database (19) Stretch Database 概览 Azure SQL Database (20) 使用SQL Server 2016 Upgrade Advisor Azure SQL ...

文章 2016-06-14 来自：开发者社区

EnterpriseDB (PPAS) Oracle兼容性Virtual Private Database(VPD) 数据隔离以及当前缺陷

不带barrier的视图是不安全的，我在前面写过文章来讲这个，以及如何攻击这种视图。 https://yq.aliyun.com/articles/14731 PostgreSQL 为了增强视图的安全，增加了barrier的属性，来解决被攻击的问题。 PostgreSQL 9.5 则提供了RLS来达到表数据隔离的目的，解决了需要使用视图来隔离数据的目的。 RLS的隔离可以参考我以前写的文...

文章 2015-04-24 来自：开发者社区

巧用flashback database实现灵活的数据回滚

之前写了一篇博文分享了使用flashback database的特性来在测试环境中避免重复导入大批量的数据，造成时间和存储空间的浪费。http://blog.itpub.net/23718752/viewspace-1584057/ 今天碰到的这个问题更有针对性和普遍性，在很多时候都需要一套独立的环境来作为客户的培训和演示需要，环境中的数据一旦配置完成，一般是很少需要改动的。如果培训完成后，第二....

文章 2015-04-17 来自：开发者社区

巧用flashback database实现灵活的数据切换

今天是DTCC第二天了，抽空去听了下，因为手头有一些活，听到一半只能赶回公司继续工作。客户今天有一个需求，因为开发现在在生产环境中遇到了一些困难，需要在测试生产环境中复现问题，这样就需要从生产环境抽取出一些数据，可能数据量相对比较小，有个1G左右。需要把这些数据加载到测试生产环境中，还是来张图更加清晰。我们需要把图中右边部分的生产环境中抽取部分数据导入到测试生产环境中，这里所说的测试生产环境....

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