比较好的做法是将prefetchsize值显式地设置成表空间的extentsize值与表空间容器数的乘积的倍数。
It is a good practice to explicitly set the PREFETCHSIZE value as a multiple of the EXTENTSIZE value for your table space and the number of table space containers.
TP支持按照一个维将一个表分区成多个数据分区。
TP supports partitioning a table into data partitions along a single dimension.
当将数据分解成多个具有外键关系的表时,这尤其重要。
This is important when data is decomposed into multiple tables having foreign key relationship.
Something I can measure and I can tabulate, and when I turn my dT knob here I know what's going to happen to the enthalpy.
----热容,我们可以用实验,测出热容并成表,当我知道这里的变量。
If you look up in the corner of your Periodic Table on one of the sides, they have actually tabulated this for you.
你认真看一下角落上,在一个角落,应该已经为你们把数据列成表了。
We can tabulate them. We can know them, and then when we have reactions that inter-convert different compounds, we can calculate the heat of reaction is just the difference between the heat of formation of the reactants, and the heat of formation of the products, right.
种化合物的生成热,可以把它们列成表,可以认知它们,而当我们要处理,在不同化合物间转变的反应时,我们只要计算反应物和,生成物的生成热之间的不同,就能计算出反应热。
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