FORTRAN常见错误 - Fortran - 数... ... Substring error 数组下标超出允许范围 Range error 整数值超出允许范围 Allocatable array is already allocated 数组重复定义 ...
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If you really need random rows out of your results, there are much better ways of doing it.
如果你确实需要随机的返回行，我们有更为有效的方法。
Since DB2 will only use the index the "traditional" way for index-only access, the rows will be returned just like our index data, in groups of identical LASTNAMEs in random order.
因为DB 2仅将以“传统”方式使用索引，以实现仅限索引的访问，各行将像我们的索引数据一样，在同样的LASTNAME小组以随机形式返回。
After the reorganization, the index NAMES_FULL_NAME will have a very low cluster factor (close to 0), because the rows are now stored in random order.
在进行重组之后，索引NAMES_FULL_NAME将具有一个极低的群集因子(接近于0)，因为现在的行是以随机次序存储的。
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