另外还要注意的是,恢复数据前,要确保恢复的表启用了行迁移(row movement),因为被flashback 回来的数据的rowid 可能会发生变化,关于行迁移的相关内容, 有兴趣的同事可以自己去了解一下。
基于8个网页-相关网页
enable row movement 启用行记录转移
An example would be to hold the bottom of a row movement for a two count.
比如划船达到最底端时,保持该动作2秒。
Row movement from the remote servers back to the federated server, as well as between the local HSJOIN operators and the UNION operator is serialized.
远程服务器到联邦服务器的行移动及本地HSJOIN操作符与union操作符之间行移动仍然是串行的。
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