In this case, the optimizer USES a generic rule or a default value to estimate an average cost by assuming normal data distribution.
在这种情况下，优化器会使用一个通用规则或者默认值以正常数据分布率来评估得到一个平均开销值。
For composite and complex services where data must be linked or matched, default values should be removed to prevent linkages of records with the same default value.
对于复合和复杂的服务，由于必须链接或匹配数据，应该去掉默认值，以防止记录与相同的默认值相链接。
Null and default value Compression (V8 GA) : Compression for null, zero length data in variable length columns and system default value.
null值和缺省值压缩(V 8GA)：对变长列中的零长度空数据和系统缺省值进行压缩。
Information such as default value, key and non-key attributes, size and data types is defined in an ASBO.
在ASBO中定义了诸如缺省值、键和非键属性、大小和数据类型之类的信息。
A comma-separated value is the default configuration for the delimited data handler.
逗号分隔值是带分隔符的数据处理程序的缺省配置。
There is a brief explanation of each parameter with a recommended 'default' value followed with some data that illustrates the importance of tuning GlassFish for performance.
每个参数都有一个建议的缺省值、简要介绍以及说明其对于性能影响重要程度的数值。
In some cases, such as when displaying data that has come back from the server, a field might have a value even though it is unset (SDO assigns a default value for some types when they are unset).
在某些情况下(如显示从服务器返回的数据时)，字段可能具有值，尽管该字段为未设置字段(当不设置某些类型的字段时，SDO将为其分配缺省值)。
The default value for this server option is 1 for non-ODBC data sources.
对于非odbc数据源，该服务器选项的缺省值为1。
Changing the default value does not affect the query formulation if the data type is the same, but it affects the results for queries on those values.
如果数据类型相同，改变默认值对查询公式没有影响，但是影响这些值的查询结果。
This handler prevents the default event (submitting the form) from being fired, sets the value of the extra ajax argument to 1, and makes an ajax Request using the original form for the URL and data.
这个处理程序阻止默认事件(提交表单)触发，将额外的ajax参数的值设置为1，使用原始表单发出一个ajax请求以获取URL和数据。
The quantile statistics default value is controlled by the num_quantiles database configuration parameter and provides information about how data values are distributed in relation to other values.
分位数统计信息的默认值由 num_quantiles数据库配置参数控制，该值提供了数据值对于其他值而言是如何分布的有关信息。
The default value for production mode — update — keeps all data around between restarts, as well creating or altering tables as necessary.
production模式的默认值 —update — 会在重新启动之间保持所有数据，也会在需要的时候创建或修改表。
If an error occurs, i.e., the formula contains invalid data, a continue handler will be activated and a negative default value (-999999999999.99) will be returned.
如果发生错误，比如公式中包含无效的数据，就会激活后续处理程序，并返回一个负的默认值(- 999999999999.99)。
Note the values for name, data type, default value and Nullable.
请注意字段名、数据类型、默认值和Nullable。
Thus, if you do not specify a value in the URL (two separators without any data between them), the default value defined in the URL_Mapper_File is used.
因此，如果您未指定url中的某个值(两个分隔符之间没有任何数据)，则会使用URL_Mapper_File中定义的缺省值。
Select Boolean from the Data type drop-down list, and choose false as the default value of the flag.
从Data类型下拉列表中选择Boolean，然后选择false作为标志的默认值。
Otherwise, the default value for the number of player processes spawned for the data operation is set to half of the number of the Teradata Access Module processors.
否则，为数据操作生成的播放器进程的数量的默认值将设置为teradataAccessModule处理器数量的一半。
The data source is defined inside the tag, the default value is WCA DataSource.
数据源实在标签里面定义的，默认值是WCA DataSource。
From the physical data model File page, accept the default value for the data design project, specify ARCH_JKENT_HR_changes for the name for the physical model, and specify the database type.
在PhysicalDataModelFile页面上，接受数据设计项目的默认值，指定CMERDADemo_HR_changes作为物理模型的名称，然后指定数据库类型。
usedefaults no yes yes Specifies that the default value defined on a column is to be imported or loaded if the input data file contains no value for that column. Given import data file tabdata.del
usedefaults noyes yes指定如果输入数据文件没有包含某列的值，就导入或载入该列上所定义的默认值。
Enter the location of your data directory for the value, and then click OK. For example, use the default.
输入数据目录所在位置作为值，然后单击ok。
In this case, it is first necessary to "escape" to the free context, and then to append the XSS attack. For example, if the data is injected as a default value of an HTML form field.
在这种情况下，首先必要的是“逃”到自由的环境中，然后附加XSS攻击。
Specifies the named value whose data value you are retrieving. Specify an empty string to get the default named value.
指定您在检索它的数据值的指名值。指定一个空字符串来得到默认指名值。
The number of update statements sent to the remote data source for buffered tables. 1 is the default. Adjusting this value can greatly increase update performance.
发送到缓冲表的远程数据源的更新语句数。默认值为1。调整该值可大大提高更新性能。
Optional (numeric) attributes without default value in Core Data - why are they discouraged?
可选的（数字）的属性没有默认值的核心数据-他们为什么沮丧？
Firstly, multi-sensor data integration is discussed and is applied to find out abnormal value, abnormal tendency, system error and monitoring default.
研究了多传感器数据集成，实现了异常值探测、异常趋势识别、系统误差识别以及监测故障判别等功能。
This list has hidden columns or read-only columns that require data but for which no default value has been specified.
此列表包含需要数据但没有指定默认值的隐藏列或只读列。
Every local variable is initialized to the default value for its data type as soon as the procedure begins running.
只要程序一开始执行，每个区域变数就会初始化为所属资料型别的预设值。
Data interface of COMS image sensor based on CPLD is designed with the default setting, at first, the sensor was initialized by setting its image window, frame rate, exposure value, etc.
COMS图像传感器数据接口设计基于CPLD。先采用默认值设置，通过设置图像窗口、帧频、曝光时间等初始化传感器。
Enabling value compression allows for no disk storage to be consumed by NULL values, zero length data in variable length columns and system default values.
数值压缩不为空值、可变长度列中的零长度数据和系统默认值提供磁盘空间。
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