If there is no primary key, the first column that is not a long field is used.
如果没有主键，就会使用非长型字段的首列。
This is really useful when very long field names (such as those used with SAP) are in use.
当使用非常长的字段名称（例如SAP 所使用的那些字段名称）时，这的确很有用。
But if you go back, 20 years ago or 25 years ago, it didn't really exist in Stanford long field.
但如果你往回想，20年或者25年前，在斯坦福中确实没有人对此进行研究。
The exception is for long field and large object data in "dirty" table Spaces, which are always backed up.
不过有一个例外，对于“脏(dirty)”表空间中的long型字段和大型对象数据，总是需要进行备份。
If no primary key is specified, the default-partitioning key is the first non-long field column defined on the table.
而如果没有指定主键，默认的分区键则为该表上所定义的第一个不为long字段的列。
For large objects and long field data, DB2 escalates Intent None (IN) locks to Share (S) locks and therefore is approximately 10% slower.
对于大型对象和long字段数据，DB2 将IntentNone (IN)锁升级为Share (S) 锁，因而要慢大约 10%。
A long field running of the medium-frequency power supply shows that the control system presented in this paper greatly improves its stability and quality.
长期的现场运行表明，这一控制系统大大提高了电源的可靠性及中频电源产品质量。
The data, index, long field, and LOB portions of a table can be stored in the same tablespace, or can be individually broken out into separate tablespaces for performance reasons.
一个表中的数据、索引、long字段和LOB部分可以存储在相同的表空间中，也可以分别放到不同的表空间中，以提高性能。
The aircraft is massive—as long as a football field and as tall as 6 double decker buses and capable of continuous flying for up to 5 days.
这架飞机有足球场那么长，有6辆双层巴士那么高，最多可以持续飞行长达5天。
Kennedy wrote that the rule "limited states' ability to seek long-term prosperity and has prevented market participants from competing on an even playing field".
肯尼迪写道，这一规则 “限制了各州长期繁荣，并妨碍市场参与者参与公平竞争”。
Low pay has long been acknowledged as a major issue in the early childhood field.
长期以来，低工资一直被认为是儿童早教领域的一个主要问题。
Geigl herself believes that with cooperation between bench and field researchers preserving fossils properly could open up avenues of discovery that have long been assumed closed.
Geigl 本人相信，如果研究人员和野外研究人员通力合作，妥善保存化石，可能会开辟长期以来被认为封闭的发现途径。
After a long and careful search, Greg saw, across a field, the dog moving cautiously away.
经过长时间的仔细的寻找，格雷格看到，在田野的另一边，小狗小心地走开了。
They had mowed down the long grass in the field.
他们已经把田地里的长草割掉。
He enjoys a ride around the field and stays on for long as he feels like it. He doesn't need any encouragement.
它喜欢在牧场上骑马，而且会在马背上待很长时间，它喜欢这样。它不需要任何奖励就能做到这点。
He enjoys a ride around the field and stays on for long as he feels like it.
它喜欢在牧场上骑马，而且会在马背上待很长时间，它喜欢这样。
Long known to experts in the self-help field, love produces mind-altering chemicals to which we can become addicted.
自我帮助领域的专家长期知道，爱产生改变思想的化学物质使我们对此上瘾。
That took long, hard, boring hours on the training field, and players who were willing to perform unglamorous tasks for the good of the team.
二人设想的实现，需要在训练场上付出长期而枯燥的努力，球员也必须为了球队利益牺牲自我，默默无闻地执行任务。
I have been in the field for a long time and had a major research program at Cornell.
我在这个领域已经很久了，并且这是我在康奈尔大学的主要研究项目。
B: We need to know how long this product will last in the field.
B：我们需要知道产品在使用中可以有多长的寿命。
It is often inconvenient if you have to type in long strings in an input field (for example, if you are typing a long chemical compound name or an address).
如果您在输入栏中输入长字符往往是十分不方面的(例如，您需要输入很长的化合物名称或地址)。
If you're new to Ajax or really just a reasonable programmer who has worked in the field long enough to know better, the idea of "polling" probably sends shivers up your spine.
如果刚接触Ajax或者仅对该领域有所了解，“轮询”的概念可能让您感到害怕。
The name and iata field entries demonstrate the long form.
name和iata字段条目演示了长表单。
For anyone interested in achieving long-term success in the field of software development, I believe that book is a must-read.
对于有志于在软件开发领域获得长远成功的人士，我认为此书是他们的案上必读物。
The hall itself was as long as a football field, lavishly furnished with statues, fountains, colorful inlaid marble and a gilded bronze ceiling.
大厅本身有一个足球场那么长，奢华地布置着雕像、喷泉、色彩斑斓的镶饰大理石以及一个镀金青铜天花板。
Planetary scientists have also long blamed Venus's sterility on the lack of an internal magnetic field.
行星科学家长期以来也曾将金星的贫瘠归咎于缺乏一个内部磁场。
Most accelerators, however, speed up the particles over a long distance, using a moderate field. The DWA employs a succession of enormous fields over just a couple of metres.
但是，大多数加速器使用的都是中等强度的电场，粒子所需的加速距离很长，而DWA采用的则是一连串的高强度电场，加速距离仅需几米。
Also helpful to me was a discussion of the depth of field preview button, something I had long ignored.
里面关于景深预览按钮的叙述给了我很大帮助，这点我之前一直没注意到。
Also helpful to me was a discussion of the depth of field preview button, something I had long ignored.
里面关于景深预览按钮的叙述给了我很大帮助，这点我之前一直没注意到。
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