The system versioned table creates a temporal table which maintains the history of the data. By default, the name is as MSSQL_TemporalHistoryFor_1541580530. But you can specify the name of this table in the CREATE TABLE statement above; ...
System-Versioned Temporal Table,暂且容我管它叫版本由系统控制的临时表,它是 SQL Server 2016 中的新型用户表,用于保留完整的数据更改历史记录。 它之所以称为版本由系统控制的临时表,是因为每一行的有效期由数据库引擎管理。 每个临时表有两个显式定义的列,其中每个列都有一个datetime2数据类型。每当数据修改后,...
Subclause 5.77, "VIEW_PERIOD_USAGE view": Without Feature T180, "System-versioned tables", conforming SQL language shall not reference INFORMATION_SCHEMA.VIEW_PERIOD_USAGE. Function Identify the periods on which viewed tables defined in this catalog and owned by a given user or role ...
SQL database in Microsoft Fabric There are three ways to create a system-versioned temporal table when considering how the history table is specified: Temporal table with ananonymous history table: you specify the schema of the current table and let the system create a corresponding history table...
Description:SQL:2011 does not allowALTER TABLEon system-versioned tables. When this variable is set toERROR, an attempt to alter a system-versioned table will result in an error. When this variable is set toKEEP, ALTER TABLE will be allowed, but the history will become incorrect — querying...
Query data in a system-versioned temporal table Learn Είσοδος SQL Επισκόπηση Εγκατάσταση Ασφαλής Ανάπτυξη Διαχείριση Ανάλυση Αναφορά Αντιμετώπισηπροβλημά...
Database Research & Development: How to enable System-versioned Temporal Table on existing table of SQL Server 2016. You can enable it and can keep a history of change data in additional history table.
在mariadb中,表版本化是10.3.4开始引入的,参考了SQL:2011的标准,截止本文编写,mariadb 10.3系列的最新版本为MariaDB 10.3.10 Stable,10.3.7发布第一个GA版本。如下: 所以新是有点新,具体看怎么办了。。。 TheCREATE TABLEsyntax has been extended to permit creating a system-versioned table. To be system...
终于等到你,System-Versioned表特性的引入,对于启用了该特性的表,数据的误删再也不怕了。相当于Oracle的闪回查询,可以查询任意时间点的数据。下面举个小例子: –创建表,with system versioning MySQL [(none)]> use test; Database changed MySQL [test]> drop table student; ...
在mariadb中,表版本化是10.3.4开始引入的,参考了SQL:2011的标准,截止本文编写,mariadb 10.3系列的最新版本为MariaDB 10.3.10 Stable,10.3.7发布第一个GA版本。如下: 所以新是有点新,具体看怎么办了。。。 TheCREATE TABLEsyntax has been extended to permit creating a system-versioned table. To be system...