就性能而言,2015年进行的一次基准测试显示,VoltDB的处理速度至少是NoSQL数据库Cassandra的两倍,但成本只有AWS云处理成本的六分之 一。 最后,VoltDB 6 .4版通过了极为苛刻的 Jepsen分布式安全性测试。 相比之下,此前对NoSQL数据库Riak进行的测试表明,即使采用最强的一 致性设置,写入也会下降30-70%。与此同时,采...
SQL Server 2022 (16.x) Cumulative update 2 now introduces support for Oracle TNS files. For more information and samples, see CREATE EXTERNAL DATA SOURCE (Transact-SQL) CONNECTION_OPTIONS.AvailabilityTáblázat kibontása New feature or updateDetails Link to Azure SQL Managed Instance Replicate ...
Applies to: SQL Server Analysis Services Azure Analysis Services Fabric/Power BI PremiumThis article summarizes new features, improvements, deprecated and discontinued features, and behavior and breaking changes in the most recent versions of SQL Server Analysis Services (SSAS)....
(SQLcl) is a free command line interface for Oracle Database. It allows you to interactively or batch execute SQL and PL/SQL. SQLcl provides in-line editing, statement completion, and command recall for a feature-rich experience, all while also supporting your previously written SQL*Plus ...
For example, to facilitate grouping by subject in your inbox, emails for a single merge request now share the same subject line. And in an effort to reduce email clutter, only three people are now notified whenever a reviewer is added to or removed from a merge request: the merge request...
New PL/SQL package generates warning messages for users over multiple soft warning limits (use theoidadmintool to configure theorclMailQmNotificationsparameter) Strong Authentication Support Oracle Mail now supports strong authentication for SMTP, IMAP, and POP. ...
The values of the PL/SQL compiler parameters at the time of compilation are stored with the compilation unit and can be inspected using theall_plsql_object_settingsview family. In additionthe predefined inquiry directives$$PLSQL_UNIT,$$PLSQL_LINEare available. For more information and details ...
显然,NoSQL数据库是用一致性来换取可用性方面的能力。 3.3 灵活性与可扩展性 与Oracle和DB2等通用型关系数据库相比,NoSQL数据库的灵活性相对较 差,(例如)不支持Join(连接)操作。除了许多不支持SQL语言的数据库,有些数据库(例如Neo4J和MongoDB)是专为支持特定问题而设计的—图处理和JSON数据结构。
Oracle Digital Assistant release 22.12 brings us a ground-breaking new capability – SQL Dialog – which can translate a user's natural language input into SQL queries, send the queries to a backend data source, and display the response. All of these wit
Send your New Stuff to Theresa atnewstuff@microsoft.com. Theresa W. Careyis a freelance writer who lives in California. Her byline has appeared inBarron'sandPC World.