片语

primary communication key[通信]

primary sort key主要排序关键字

Set Primary Key设置主键

primary primary key主键

primary y key重键字

Primary-key Nodes主键结点

primary y key attributes主码属性

primary file key[计]

英汉例句

• on the next page, you choose where to retrieve the value of the primary key (figure 28).

  在接下来的页面中，您要选择在什么地方检索主关键字的值（图28）。

• the primary key and any unique index of the table must be a superset of the associated partitioning key.

  表的主键和所有惟一索引都必须是相关分区键的超集。

• the latter is actually a primary key lookup against the parent table and constitutes the foreign key constraint verification.

  索引扫描实际上是对父表进行主键查找，并完成外键约束验证。

• for example, this might happen when two ore more of the tables in the mqt have a referential integrity relationship defined and the join predicate is on their primary key - foreign key columns.

  例如，当mqt 中的两个或多个表定义了引用完整性关系并且联结谓词在它们自己的主键-外键列上时，就会出现这种情况。

• constraints such as primary key - foreign key relationships and uniqueness of values are not possible on particular values of an xml document.

  不能对xml文档的特定值执行限制，比如主键—外键关系和值的唯一性。

• for foreign key creation, another table with a primary key with a compatible data type is required.

  对于创建外键，则需要另外一个具有主键的表，且该主键具有兼容的数据类型。

• the descriptor can also provide the same metadata information about the entities as annotations, such as primary key field, and any mappings between objects.

  描述符也可以提供与注释相同的有关实体的元数据信息，如主键字段，以及对象之间的任何映射。

• having the database generate values for the primary key for a table (and by extension, any foreign key values for related tables) eliminates the burden from the application from having to do so.

  数据库为一个表格的主键生成值（通过扩展，为相关表生成外主键），从而将程序从这项任务的重担中解放出来。

• to round things out, you can also define one-to-one relations, where one primary key must match exactly one secondary key.

  为了更加全面，您也可以定义一个主键必须恰好与一个辅键匹配的 一对一关系。

• any unique key or primary key must contain all of the partitioning key columns.

  任何惟一键或主键都必须包含分区键中的所有列。

• in this case, the unique indexes created by the system for enforcing primary key or unique key constraints will be created as global.

  在本例中，系统为执行主键或唯一键约束所创建的独立索引，必须创建为全局索引。

• so a different solution was found if an identifying column like a primary key is found in the table.

  所以，如果在表中找到一个标识列，例如主键，则可以找到一种不同的解决方案。

• in the above access plan, ixscan(4) scans the entire primary key for one million rows.

  在上面的存取计划中，ixscan(4)会扫描一百万行记录的所有主键。

• the application never knows what value is put into the primary key column after running the insert statement.

  在运行insert语句之后，应用程序将永远都不知道放入了主键列中的是什么值。

• fortunately, with a basic understanding of the primary key and foreign key strategy employed, you can find anything you want.

  幸运的是，随着对使用的主键和外键策略的基本理解，可以找到您所需的全部内容。

• finder target policy — targets a find by primary key operation be executed on a subset of slices.

  查找定向策略 —将根据主键操作的查找定向为在片的一个子集上执行

• when we are able to relate without ambiguity any association end to a foreign key, we can apply the correspondence to specify to which primary key the foreign key refers.

  当我们能够清楚无二义地联系任何关联结尾和外键时，我们可以把通讯应用于指明外键指向的是哪个主键。

• in particular, it supports multiple primary key fields and exposes some user interface enhancements and a new model for handling and canceling events.

  特别是，它支持多个主键字段，公开了一些用户界面的改进功能和一个处理与取消事件的新模型。

• primary key generation and unknown primary key field handling is now becoming supported, and more people are beginning to use it.

  现在已经开始支持自动生成主键和未知的主键字段处理，而且越来越多的人开始使用它。

• a dimension table needs a generalized key as the primary key data; this becomes the foreign key in the fact table.

  维度表需要作为主键数据的通用键；这将作为事实表的外键。

• there is exactly one primary key and at most one secondary key for the wireless hosted hetwork on any computer.

  在任何计算机中，无线承载网络都有且只有一个主密钥，一个第二密钥。