SET SYSTEM_VERSIONING = ON在SQL Server 2016 (13.x) 中,前兩個步驟必須在個別 EXEC 陳述式中執行,否則 SQL Server 會產生類似下列範例的錯誤:輸出 複製 Msg 13560, Level 16, State 1, Line XXX Cannot delete rows from a temporal history table '<data...
強烈建議您將SYSTEM_VERSIONING設為DATA_CONSISTENCY_CHECK = ON,以針對現有資料強制執行資料一致性檢查。 如果慣用隱藏的資料行,請使用命令ALTER TABLE [tableName] ALTER COLUMN [columnName] ADD HIDDEN;。 相關內容 其他資源 事件 加入我們在 FabCon Vegas ...
PERIODFORSYSTEM_TIME (SysStartTime, SysEndTime)GOALTERTABLEdbo.TemporalTableTEST5SET( SYSTEM_VERSIONING=ON(HISTORY_TABLE=dbo.TemporalTableTEST5_History, DATA_CONSISTENCY_CHECK=ON));GO 如果表中有数据,需要分开来完成这个转换过程。 --DROP TABLE dbo.TemporalTableTEST4CREATETABLEdbo.TemporalTableTEST4 (...
自SQL Server 2008 (10.0.x) 起,锁升级的行为已更改,其中引入了 LOCK_ESCALATION 表选项。 有关详细信息,请参阅 ALTER TABLE 的LOCK_ESCALATION 选项。监视锁升级使用lock_escalation 扩展事件来监视锁升级,如以下示例中所示:SQL 复制 -- Session creates a histogram of the number of lock escalat...
The system must also be able to correctly handle errors that terminate a transaction before it completes. For more information, see Transactions, Performing Transactions in ODBC, and Transactions in SQL Server Native Client. By default, transactions are managed at the connection level...
由SQL Server自动创建History表 CREATE TABLE dbo.TemporalTableTEST1 ( ID INT PRIMARY KEY CLUSTERED , SysStartTime DATETIME2 GENERATED ALWAYS AS ROW START NOT NULL , SysEndTime DATETIME2 GENERATED ALWAYS AS ROW END NOT NULL , PERIOD FOR SYSTEM_TIME (SysStartTime, SysEndTime) ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) Warehouse in Microsoft Fabric Modifies a table definition by altering, adding, or dropping columns and constraints. ALTER TABLE also reassigns and rebuilds partitions, or disabl...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) Warehouse in Microsoft Fabric Modifies a table definition by altering, adding, or dropping columns and constraints. ALTER TABLE also reassigns and rebuilds partitions, or disabl...
使用API 函数和 Transact-SQL 语句,可以在 SQL Server 数据库引擎实例中将事务作为显式、自动提交或隐式事务来启动。 显式事务 显式事务是指这样的事务:你在其中通过 API 函数或发出 Transact-SQL BEGIN TRANSACTION、COMMIT TRANSACTION、COMMIT WORK、ROLLBACK TRANSACTION 或 ROLLBACK WORK Transact...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) Warehouse in Microsoft Fabric Modifies a table definition by altering, adding, or dropping columns and constraints. ALTER TABLE also reassigns and rebuilds partitions, or disabl...