We may not always want to roll back an entire transaction. SAVEPOINT is an SQL statement that creates a savepoint for a group of SQL statements within a transaction. A savepoint acts as a transaction marker. We
When a connection is setup with the auto-commit mode set to off or "smart commit", the SQL Commit and Rollback options become available. Use the commit option to commit a transaction or statement of work to the database. Use the rollback option to rollback any work since the last commi...
savepoint identifier, savepoint 允许在事务中创建一个保存点,一个事务中可以有多个savepoint release savepoint identifier 删除一个事务的保存点,当没有指定的保存点时,执行该语句会抛出一个异常。ERROR 1305 (42000): SAVEPOINT identifier does not exist rollback to identifier 把事务回滚到标记点 set transaction ...
またはROLLBACKコマンドとRELEASEオプションを使用して、必ず明示的にコミットまたはロールバックしてください。プログラムが異常終了すると、Oracleによって変更は自動的にロールバックされます。 例 この例では、埋込みSQLCOMMITコマンドの使用方法を示しています。
rollback; /* undo the changes */ SAVEPOINT Specify a point in a transaction to which later you can roll back. Example insert into emp (empno,ename,sal) values (109,’Sami’,3000); savepoint a; insert into dept values (10,’Sales’,’Hyd’); ...
可以使用SAVEPOINT SAVEPOINT_NAME命令创建保存点,使用ROLLBACK TO SAVEPOINT SAVEPOINT_NAME命令来回滚到保存点SAVEPOINT_NAME。如:CREATE TABLE TEST(A INT,B VARCHAR); INSERT INTO TEST VALUES (1,’HAHA’); SAVEPOINT S1; SELECT * FROM TEST; INSERT INTO TEST VALUES (2,’HEHE’); SELECT * FROM TEST...
Re: Rollback/ commitPosted by: Sarmail Singh Date: October 26, 2004 11:22AM Following is the code, I tried without specifing SAvePoint, now roll back is always executed but data in database is not rolled back. import java.sql.*; import java.io.*; public class SavePoint{ ...
--=== --答案:不可以 /* Msg 3931, Level 16, State 1, Procedure utr_TB2_INSERT, Line 17 The current transaction cannot be committed and cannot be rolled back to a savepoint. Roll back the entire transaction. */
commit or rollback operation will be performed at the end of an application process depending on the application environment. Thus, a portable application should explicitly execute a COMMIT or ROLLBACK statement before execution ends in those environments where explicit COMMIT or ROLLBACK is permitted...
Copy to clipboard. In[8]:= Direct link to example Out[8]= Copy to clipboard. In[9]:= Direct link to example Copy to clipboard. In[10]:= Direct link to example 参见 SQLBeginTransactionSQLRollbackTransactionSQLSetSavepointSQLSavepoint