Supplying a key value implied an update to existing data in the registry.
提供一个键值意味着对注册中心中现有的数据进行更新。
You can specify custom Metadata on every file. Any user Metadata is a key value pair.
每个文件都可以附加一些由你指定的元数据。
HBase is a key value store akin to BigTable which stores data in Hadoop's DFS file system.
HBase是类似BigTable的键值存储模型，将数据存储于Hadoop的DFS文件系统。
Records that had no owner were called "entrypoints" and were found based on their key value.
无所有者的记录称为“entrypoints”，且根据其键值予以查找。
If the translation attribute is found, the element is registered in a table as a key value pair.
如果发现翻译属性，该元素会在表中作为键值对注册。
The B-tree would store the key value, followed by a list of pointers to each of the physical rows.
B-树将存储键值，以及一个指向每个物理行的指针列表。
This provides the ability to save the same entity with the same key value in more than one registry.
这提供了将具有相同键值的相同的实体保存到多个注册中心的功能。
It's sometimes known as an associative array because data is associated with a key value, or as a hash table.
它有时候称为关联数组(因为数据与一个键值相关联)，或者作为散列表。
The optimizer will deduce key value selection based on the functional dependency of the column within the row.
优化器将根据行中列的函数依赖性来推断关键值选择。
InsertJSON expects two input parameters: the unique key value for primary key and the row data in JSON format.
insertJSON需要两个输入参数：主键的惟一键值与json格式的行数据。
This makes sense because you generally want to know whether a data value — rather than a key value — is in a dictionary.
这是有意义的，因为一般希望知道某个数据值(而不是键值)是否在dictionary中。
Note that this assumes that key columns are never updated; once a row exists, it is immutably tied to its primary-key value.
注意，这假设从不更新键列；一旦一行存在了，它的主键值就不变了。
Each key value can be used separately to encrypt messages, but it cannot be used to decrypt the messages it was used to encrypt.
每个密匙值都可以单独用于加密消息，但是不能用于解密由它本身加密的消息。
Information aggregation is the key value that this part of the workshop brings to the overall development of the customer's portal.
信息汇总是研讨会的这一部分向整个客户的门户开发提供的主要价值。
The default values in the field would most likely be retrieved from a database or operational system, using the UPC symbol as the key value.
字段中的默认值很可能是通过使用upc符号作为键值从一个数据库或运营系统中检索到的。
Correlation predicates typically compare some key value in the event, such as a unique trip identifier, with a metric containing the same key.
关联谓词通常将事件中的某个键值(例如唯一旅行标识符)与包含相同键的度量作比较。
Otherwise, a new key value is taken from the sequence and used for both, a new entry in the dimension table and as a foreign key in the fact table.
否则，从序列获取一个新的键值，用它作为维表中新条目的主键和事实表中的外键。
The cookie may consist of nothing more than a simple key value that unlocks reams of information about this user stored in the company's databases.
Cookie也许仅仅由一个简单的键值组成，该值用于解锁存储于公司数据库中有关此用户的大量信息。
You can think of a hash table conceptually as a series of buckets, each with an address that is derived form the key value by applying the hash function.
可以在概念上将哈希表认为是一系列的bucket，每个 bucket 所拥有的地址是通过应用哈希函数从键值导出的。
This means that every row in the point table must have a key value (consisting, in this case, of two column values) that must also exist in the source table.
这意味着点表中每一行的键值（在这个示例中，由两个列值组成）必须也在源表中存在。
Obviously, the key value to WS-Notification is its ability as a standard to allow for greater interoperability with a greater number of vendors and, thus, a lower cost for implementation.
显然，WS- Notification的关键价值是能够作为标准，支持与更多数量的供应商进行更强的互操作，从而降低实现成本。
For that effect, JSON defines the following main data structures: number, string, Boolean (true and false), array (an ordered sequence of values), object (collection of key value pairs), and null.
为了实现该目的，JSON定义了以下主要数据结构：数字、字符串、布尔值(真或假)、数组(值的有序排列)、对象(键值对集合)和null。
Log messages relating to trivial databases, which are key-value stores that Samba USES.
与不重要的数据库相关的日志消息，这是Samba使用的键值存储。
GetDocData , which returns the contents of the element as a series of key-value pairs.
getDocData用一系列键值对返回元素的内容。
Suppose we modify the previous example so we’re matching on the key-value pairs from a map.
我们修改一下前面一个例子，来匹配map的键值对。
A reduce function then processes those intermediate key-value pairs, merging the values for the associated keys (see Figure 1).
然后reduce函数会处理这些中间键值对，并合并相关键的值(请参考图1)。
If you are familiar with relational databases such as IBM DB2, MySQL, or PostgreSQL, then you will find key-value stores primitive in comparison.
如果您熟悉关系数据库，例如IBMDB 2、MySQL或PostgreSQL，则相比之下您将发现键值存储非常简单。
SimpleDB is a simple data storage that lacks the sophistication of a full-fledged Relational Database Management System (RDBMS), while providing scalable key-value storage.
SimpleDB是一个简单的数据存储，它缺乏一个完全成熟的关系数据库管理系统(RDBMS)所拥有的完善的功能，但是提供了一种可伸缩的键值存储。
Relational databases use Structured Query Language (SQL) to pull information from multiple tables and columns, but key-value stores are limited to operations on the key column.
关系数据库使用结构化查询语言(Structured Query Language,SQL)以便从多个表和列中提取信息，但是键值存储仅限于对键列的操作。
Because of their simplicity, key-value stores are useful for a smaller set of jobs but can do those jobs very quickly.
由于其简单，键值存储对于较小系列的作业非常有用，而且可以非常快速地执行那些作业。
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