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savepoints

网络存储点；嵌套事务

savepoints

savepoints

savepoints

存储点

对于长的事务，可以设置称为存储点（savepoints）的中间标志，将事务分割为小段。存储点允许回滚从事务当前点到事务靠前 …

嵌套事务

...(MVCC), 点在时间补救, 表空间、异步复制、嵌套事务(savepoints), online/hot 备份, 一次老练询问planner/optimizer, 和写向 …

4

Optimistic locking is also supported as well as multiple Transaction Savepoints .

锁优化机制也支持多个事务的保存点。

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Savepoints are named markers within a database transaction .

保存点指的是数据库事务中指定的标记。

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This lets you set, rollback, and release savepoints in a transaction .

它允许您在事务中设置、回滚和释放保存点。

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As described earlier , you set savepoints with the SAVEPOINT statement .

如前所述，将使用 SAVEPOINT 语句设置保存点。

9

You probably won't need to use savepoints frequently .

您或许不是经常需要使用 Savepoint 。

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Listing 8. 2. Sample code using savepoints in stored procedures

清单 8.2 在存储过程中使用保存点的样例代码

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