The problem is that the predicate with the fn: upper-case function prevents the use of XML indexes in DB2.
问题是如果使用包含fn: upper - case函数的谓词,就不会使用DB 2中的xml索引。
Another sizing technique, Use Case Function Point (UCFP) estimation, is an adaptation of Function Point Counting.
另一个估计技术,用例功能点(UCFP)评估,是功能点计算方法的改编。
To avoid the use of the fn: upper-case function and exploit the benefits of XML indexes, it is necessary to create a case-insensitive database.
要想避免使用fn: upper - case函数并利用xml索引加快查询,就需要创建不区分大小写的数据库。
The other obvious one to do would be worst case. Again, over all possible inputs to this function, what's the most number of steps it takes to do the computation?
很明显另一种就是针对最坏的情况了,也就是在所有可能的输入,里面选出用的,步骤最多的那个输入?
Now in this case, it's clear that I'm not only saying this function takes an input, I also have to give that input a name.
在这种情况,很清楚的,我不只是说明这个函数有一个输入,我还要给那个输入一个名字。
It has the function, in other words, of negating its own meaning in another semiotic system, in this case the semiotic system of the stoplight.
也就是说,他有这样那样的功能,在不同语义系统中表示的甚至完全相反,就像红灯表示的这些不同含义一样。
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