远程索引中不同索引键值的个数
The number of distinct values of index keys in remote indexes
取得主索引键值指定的资料列。
取得物件，其中包含资料系结控制项中所选取资料列的资料索引键值。
DataKey objects that represent the data key value of each row in a data-bound control.
将更新的顺序更改为先执行“更新”，有助于您变更现有资料录的主索引键值。
Changing the update order to perform Updates first can be helpful when you are changing primary key values of existing records.
索引键值是使用指定的比较子来进行比较，而每个群组的项目则都是利用指定的函式进行规划。
Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.
这个类别为以其他物件值为其索引键值基础的类别提供支援，同时传入的物件可确保产生之资源索引键的唯一性。
This class provides support for classes that base key values on other object values, where the objects passed in assure uniqueness of the generated resource keys.
理想情况是，索引中的每个键值都是惟一的。
首先在逻辑上将表与其自身连接，然后将更具有选择性的非起始索引键作为索引绑定过滤器，应用于起始键值的每个惟一的组合。
The table is logically joined to itself, and the more selective non-leading index keys are applied as index bound filters to each unique combination of the leading key values.
所有索引都需要进行保存，并且，所有索引都需要制定执行时间并保存其键值。
All indexes require storage and all indexes require execution time to order and store their key values.
如果为索引表空间使用较大的缓冲池，并且尽可能地将不同 insert排序，以便键值是排好序的，而不是随机的，就可以帮助加快索引维护。
You can help speed up index maintenance by using a large buffer pool for the index tablespace, and, if possible, ordering the inserts so that the key values are ordered, not random.
返回跟传递过来的键值或索引值相关的项。
但者其实也不要紧，因为字典里面的元素并不是用整数索引来排列的。所以你就可以直接用键来查找对应的键值。
But that's not a problem because the elements of a dictionary are never indexed with integer indices. Instead, you use the keys to look up the corresponding values.
可将响应报文存放在一个对象中，以URL为键值索引它。
This can be done by putting the response text into an object, keyed by the URL used to fetch it.
然而真正神奇的是，我们能够创建无限数量的索引，每一个代表它自己的键值并包含一个令牌副本。
The real magic, though, is that we can create an infinite number of indices, each one representing its own key and containing a copy of the token.
返回跟键值或索引相关连的项。键值比索引优先。
Returns the item associated with the passed key OR index. Key has priority over index.
PropertyTree库提供了一种数据结构，用于保存任意嵌套层数的由值组成的树，每一层以某个键值来索引。
The Property Tree library provides a data structure that stores an arbitrarily deeply nested tree of values, indexed at each level by some key.
字典包括一系列的索引，不过就已经不叫索引了，而是叫键，然后还对应着一个个值，就叫键值。
A dictionary contains a collection of indices, which are called keys, and a collection of values.
字典包括一系列的索引，不过就已经不叫索引了，而是叫键，然后还对应着一个个值，就叫键值。
A dictionary contains a collection of indices, which are called keys, and a collection of values.
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