In summary, a good primary key is one that is unique, stable, simple, and ideally sequential and minimal in size. On the other hand, primary keys that are non-unique, complex, mutable, large, or carry meaningful and sensitive information, are generally not advisable. The choice of a prima...
A primary key, also called a primary keyword, is a column in arelational databasetable that's distinctive for each record. It's aunique identifier, such as a driver's license number, telephone number with area code or vehicle identification number (VIN). A relational database must have onl...
In an emergency, your organization may not be able to get all its functions up and running immediately, so knowing which ones are most critical to its success is crucial to surviving the first minutes, hours, and days. Assessing key suppliers and service providers for their adaptability and ...
For more information, see Back Up and Recovery in Base Database Service. May 02, 2024 Oracle Database 23ai is available on Base Database Service Oracle Database 23ai is a regular production release available on Base Database Service. With this release, you can perform all the lifecycle op...
See Configure an Oracle Cloud Application. Application Extension template removed The Application Extension template, featured in the Templates step of the New Project wizard, is no longer available. While you can derive the same functionality by creating an empty project, an environment that points...
Virtual log file growth In previous versions of SQL Server, if the next growth is more than 1/8 of the current log size, and the growth is less than 64 MB, four VLFs were created. In SQL Server 2022 (16.x), this behavior is slightly different. Only one VLF is created if the grow...
You also can easily convert both CentOS and RHEL installations in-place to an Oracle installation just by pointing their package manager to a new update server. This is because, among other things, they all use the RPM system. (Note that this is a technical statement—vendors may have additi...
Data virtualization with PolyBaseQuery data from external SQL Server, Oracle, Teradata, MongoDB, and ODBC data sources with external tables, now withUTF-8 encoding support. For more information, seeWhat is PolyBase?. SQL Server 2019 (15.x) Cumulative update 19 now introduces support for Oracle...
What is Oracle? Oracle is one of the largest vendors in the enterprise IT market and the shorthand name of its flagship product, a relational database management system (RDBMS) that's formally called Oracle Database. The database software sits at the center of many corporate IT environments,...
Object storage integrationSQL Server 2022 (16.x) introduces new object storage integration to the data platform, enabling you to integrate SQL Server with S3-compatible object storage, in addition to Azure Storage. The first isbackup to URLand the second is Data Lake Virtualization. ...