Thee size of the primary key cannot exceed approximately one database block.
主键大小不能超过一个数据块大小。 。
A processor core then picks up the uncompressed, filtered data block and performs fundamental database operations such as sorts, joins, and aggregations.
处理器内核随后选出未压缩的、过滤后的数据块，执行基本的数据库操作，如排序、联接和聚合。
If the sorted data cannot fit entirely into the sort heap, which is a block of memory that is allocated each time a sort is performed, it overflows into a temporary table owned by the database.
如果无法将排序的数据整个放入排序堆中(排序堆是每次执行排序时分配的一块内存)，它就会溢出到该数据库所有的临时表中。
To use this code fragment as a starter building block, you will need to replace the dummy links, database name, and login information to reflect your own environment.
为了将此代码片段用作起始构建块，您需要替换虚拟链接、数据库名称和登录信息来反映您自己的环境。
Specifically, if everything is happening in a single thread, performing long operations such as network access or database queries on the UI thread will block the whole user interface.
特别是，如果把所有的事件都放在主线程中来处理，需要长时间来处理的事件比如网络访问或者数据库查询，会阻塞整个UI。
One of the most noticeable differences of an in-memory database system is the absence of large data block structures.
内存中数据库系统一个最值得注意的不同之处在于没有大数据块结构。
Specifically, if everything is happening in the UI thread, performing long operations such as network access or database queries will block the whole UI.
如果UI线程需要处理每一件事情，那些耗时很长的操作——诸如访问网络或查询数据库等——将会阻塞整个UI(线程)。
When subsequent account POIDs are required, they will be allocated immediately from this reserved block, eliminating the need for additional remote database transactions.
当接下来还需要帐户POID时，服务会立即从这个保留的块中予以分配，这样就减少了额外远程数据库事务的需要。
Processes using large percentages of memory should be examined further, although remember that database and HPC applications can use the entire memory block as normal and could be ignored.
应该进一步检查使用的内存百分比高的进程，但是应该记住数据库和HPC应用程序在正常情况下可以使用大量内存，可以不理会它们。
The last point of interest for this section is the thread block times that are rolled up to the database level.
本节最后将介绍上升到数据库级的线程阻塞时间。
Catch block, including the database metadata operations shown in Listing 3.
catch块中，包括清单3所示的数据库元数据操作。
Finally, the columns block maps the Grails names to the database names.
最后，columns块将Grails名称映射到数据库名称。
The implementation of this function says if the userid beauvoir tries to connect from a remote client that has an IP address that is the same as the IP address of the database server, then block it.
该函数的实现表明，如果用户idbeauvoir试图从一个与数据库服务器有相同ip地址的远程客户机进行连接，那么就阻塞它。
When you type grails prod run-app, you are telling grails to use the database Settings in the production block.
在输入grailsprod run - app时，就是告诉grails使用production块中的数据库设置。
To use the doQuery method, you need to establish a database connection and call the method from within a try ... catch block, as shown in Listing 4.
要使用doQuery方法，需要建立数据库连接并且从try ...catch块内调用方法，如清单4 所示。
When a database is being exported or imported, Informix will block the database exclusively for the operation, in other words, no users are permitted to use the database.
当导出和导入数据库时，Informix将阻止数据库进行任何操作，换句话说，不允许任何用户使用数据库。
To give you some background, Amazon Web services catalog comprises of a few core building block services for storage, database, computing and queuing.
先说点背景知识，Amazon网络服务(Amazon Web Service，简称AWS)由多个核心服务组成，包括储存、数据库、计算和队列。
When Derby shuts down a database, it throws an SQLException with an SQLState of 08006, which is why the catch block ignores this exception.
Derby关闭数据库时，将抛出SQLException，使用08006作为SQLState，这就是catch块忽略此异常的原因。
The first block contains the event handler to initialize the application (onload) and the initialization of the database, as shown in Listing 3.
第一段包含初始化应用程序的事件处理函数(onload)和数据库初始化，如清单3所示。
For these kind of backups, IDS allows the blocking of the database server through 'onmode -c block' to accomplish a consistent state.
对于这类备份，IDS允许通过'onmode - cblock'阻塞数据库服务器，从而实现一致状态。
The Notes 7 mail database now allows you to block mail from one or more users.
Notes7邮件数据库现在允许阻止来自一个或多个用户的邮件。
Data Access application block. Developers can use this application block to incorporate standard database functionality in their applications.
数据访问应用程序块。此应用程序块允许开发人员在其应用程序中集成标准的数据库功能。
The establishment of database and the graphics library provides great support for the automatically optimized design of hydraulic manifold block.
该数据库与图形库的建立为液压集成块自动优化设计提供了有力支持。
One data block corresponds to a specific number of bytes of physical database space on disk.
一个数据块对应于一个特定数量字节的磁盘上的物理数据库空间。
It analyzed the key technology that achieved this system, and gave functional design and realization for each block including database design, flow chart and specific realization of each block.
分析了实现该系统的关键技术，给出了各个模块的功能设计和实现，包括数据库设计，各功能模块流程图和各模块的具体实现。
Design on hydraulic manifold block of Marine anchor main including database design module, data entry and editing module, layout design module, integrate hole design module, virtual design module.
锚机液压集成块设计系统主要包括：数据库设计模块、数据输入与编辑模块、外形布局模块、孔道连通设计模块、孔道校核模块、虚拟设计模块。
A data block is the smallest unit of data used by a database.
数据块是构成数据库的最小数据单位。
While using predefined templates, this list is not enabled because the database will be created with the default block size of 8 KB.
当使用预定义的模板时，这个列表将不能使用，因为创建数据库的时候会用默认的8k来设置数据库块的大小。
Since everything happens on a single thread performing long operations, like network access or database queries, on this thread will block the whole user interface.
一旦所有的事件都在一个线程中进行耗时的操作，比如说在这个线程上进行网络连接，数据库访问，会阻塞程序的界面响应。
CLK design gives a kind won't the database of block, this means processor to will never hold unwanted position.
CLK设计出一种不会梗阻的数据库，这就象征着措置器决不会保持空闲状况。
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