適用於:Microsoft Fabric 中的 SQL ServerAzure SQL 資料庫 Azure SQL 受控執行個體Azure Synapse Analytics AnalyticsPlatform System (PDW) 倉儲 將連線的 BEGIN TRANSACTION 模式設定為implicit。 Transact-SQL 語法慣例 語法 syntaxsql複製 SETIMPLICIT_TRANSACTIONS{ON|OFF} ...
select @@TRANCOUNT--值为0 rollback--不能回退,报错"The ROLLBACK TRANSACTION request has no corresponding BEGIN TRANSACTION." 三 总结 默认implicit_transactions 是 off。 启用隐含交易(set implicit_transactions on)模式后, 数据库引擎会当需要交易管理的第一句语句执行时候自动激活一笔新交易,从而必须显示地com...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) Warehouse in Microsoft Fabric Sets the BEGIN TRANSACTION mode to implicit, for the connection. Transact-SQL syntax conventions Syntax syntaxsql Copy SET IMPLICIT_TRANSACTIONS {...
When a connection is operating in implicit transaction mode, the instance of the SQL Server Database Engine automatically starts a new transaction after the current transaction is committed or rolled back. You do nothing to delineate the start of a transaction; you only commit or roll back each...
implicit transaction 在第一个事务被提交或回滚，SQL Server会自动启动一个新事务，下次这些声明，是由连接执行。 SQL Server keeps generating a chain of implicit transactions until implicit transaction mode is turned off. SQL Server的不断产生一种隐含的交易，直到隐式交易模式链是关闭的。 当连接处于隐式...
When SQL_AUTOCOMMIT_OFF is set by an ODBC application, the SQL Server ODBC driver issues a SET IMPLICIT_TRANSACTION ON statement. ADO ADO does not support implicit transactions. ADO applications use either autocommit mode or explicit transactions. ...
BEGIN TRANSACTION (Transact-SQL) CREATE TABLE (Transact-SQL) DELETE (Transact-SQL) DROP TABLE (Transact-SQL) FETCH (Transact-SQL) GRANT (Transact-SQL) INSERT (Transact-SQL) OPEN (Transact-SQL) REVOKE (Transact-SQL) SELECT (Transact-SQL) ...
When SQL_AUTOCOMMIT_OFF is set by an ODBC application, the SQL Server ODBC driver issues a SET IMPLICIT_TRANSACTION ON statement. ADO ADO does not support implicit transactions. ADO applications use either autocommit mode or explicit transactions. ...
In addition, you do not need to enlist resources explicitly with the transaction. Any System.Transactions resource manager (such as SQL Server 2005) can detect the existence of an ambient transaction created by the scope and automatically enlist....
In addition, you do not need to enlist resources explicitly with the transaction. AnySystem.Transactionsresource manager (such as SQL Server 2005) can detect the existence of an ambient transaction created by the scope and automatically enlist. ...