After a successful database read operation, it iterates on the result set and collects the individual account data information.
在数据库读操作成功之后，它循环遍历结果集并收集帐户数据信息。
The drawback of this approach is that multiple items in the item set need to be read or written for a single operation.
此方法的缺陷是对于单个操作需要读取或写入项目集中的多个项目。
If the alter operation is an in-place alter, or if the participant mode is set to read-only for the replicated table being altered, the replay position is not moved.
如果alter操作是一个in - place alter，或者被修改复制表的参与者模式被设为只读，那么重放位置不会移动。
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