Note that for a DAG represented in Matrix, shifting position of entire row or entire column still makes the representation equivalent.
注意，一个DAG表示为矩阵，移位置的整行或整列仍然是等效的表示。
If some documents in the XML column are still too large to be inlined, they are stored "outlined" in the XDA object as usual.
如果xml列中的某些文档仍然非常庞大而不能进行内联，那么可以像以往一样将它们保存在XDA对象中。
If you add a column to the table being accessed, DB2 can still manipulate the data without changing the program code.
如果将一列添加到正在被访问的表中，DB 2仍然可以在不更改程序代码的情况下操作数据。
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