Result-set-delete Facility 结果集删除机制
XQuery needs an update (and create and delete) facility.
XQuery 需要一个更新（和创建、删除）工具。
The DB2 Explain facility will indicate when the rollout algorithm was used to perform a DELETE by the term Cell Delete instead of Delete.
DB2 Explain 工具将指出 rollout 算法何时被用于按照术语 Cell Delete 而不是 Delete 来执行一个 DELETE。
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