At each operator in the access plan, the optimizer estimates the cardinality output from the operator.
对于访问计划的每个操作符,优化器将估计该操作符的基数输出。
And you access all the items in the same way using the square bracket operator, which supports slicing different types of sequential items.
并且可以使用方括号操作符以相同的方式访问所有数据项,它支持将不同类型的有序数据项分段。
The remaining two sections provide details on each operator of the access plan, and the tables and/or indexes used by the query.
其余的两个区域提供了关于访问计划的每个操作符以及查询所使用的表和/或索引的细节。
You can access a static property using the scope resolution operator, which consists of a double colon (: :).
可以使用范围解析操作符来访问静态属性,该操作符由双冒号(:)组成。
The remote access plan contained in the RPD operator is constructed by the wrapper and contains the necessary specification to invoke the remote request from the non-relational data source.
RPD操作符中的远程访问计划是由包装器构造的,其中包含为调用来自非关系数据源的远程请求所需的规范。
An operator class is used in conjunction with the access method to specify the operators used for building the index and during query optimization.
将操作符类与访问方法结合使用,可以指定创建索引和优化查询时使用的操作符。
If you run the final query from Listing 6, as it is shown above, you should see in the access plan that DB2 decides to use the extended index by the EISCAN operator.
如果运行清单6中最后的查询(如上面所示),这么在访问计划中应该可以看到,DB 2决定通过EISCAN操作符使用扩展的索引。
Although they are only allowed to take minority stakes in Chinese telecoms companies, having a local partner could give a foreign operator better access to other telecoms projects in China.
尽管它们只获准在中国的电信企业持有少数股份,但拥有一家当地合作伙伴,可让外资运营商更好地参与中国的其它电信项目。
Comparing the access plans in Figure 4 and Figure 5 shows again with the EISCAN operator that an extended index is used by the query.
比较图4和图5中的访问计划,会发现对于EISCAN操作符,查询使用了一个扩展索引。
As such, the NLJOIN does not act as a classical join with two input legs, but facilitates access to the XML data for the XSCAN operator.
同样地,NLJOIN并没有充当拥有两个输入的标准连接,而是协助XSCAN操作符来访问XML数据。
This guideline specifies that all applicable XML indexes be used together by a XANDOR operator to access the given table.
该准则指定XANDOR操作符同时使用所有合适的xml索引访问给定表。
NTT DoCoMo, the leading mobile operator with 55% of the market, pioneered mobile Internet access in 1999, and today many subscribers rely on their phones as much for E-mail as for voice calls.
移动互联网接入于1999年由ntt DoCoMo(日本最大的移动运营商,市场占有率55%)首创。如今许多用户依靠手机收发电邮的频率已经和通话不相上下。
In Listing 6, you can see how easy it is to combine collections (using the + operator) and access members (via [position]) — and do so without the fear of things blowing up on you!
在清单6中,可以看到组合集合(使用+操作符)和访问成员(通过[position])是多么容易,没有什么值得操心的东西!
The cardinality represents the estimated number of rows returned from the access plan operator.
基数(cardinality)表示访问计划操作符所返回的行的估计数目。
One operator is for data access from a table, one is for performing the segmentation, and the third is for visualizing the segmentation. Following are the steps for creating such a stream.
一个运算符用于来自表的数据访问、还有一个运算符用于执行细分、最后一个运算符用于可视化细分。
The earlier access plan shows that the total cost of the SELECT statement is 3420.41 timerons, which is from the table scan operator (TBSCAN) against the ACCOUNT table.
前面的访问计划显示select语句的总成本是3420.41timerons,这来自于表扫描操作符(TBSCAN)对ACCOUN t表进行的操作。
Go to this specific operator ID in the detailed operator section of the access plan, and isolate the predicates applied at the operator (in this case, IXSCAN). For example.
在访问计划的详细操作部分找到这个操作id,并隔离应用于该操作(即ixscan)的断言。
By enforcing this rule in the sugroups attribute, the group names that have the NOT operator before the group name will be denied access to su to that account.
通过在sugroup s属性中使用这个规则,前面有NOT操作符的组就不允许通过su变成此用户。
The access plan operator is either an action that must be performed on data, or the output from a table or an index.
访问计划操作符要么是必须在数据上执行的动作,要么是表或索引的输出。
The scope resolution operator should sit between the class name and the static property you wish to access.
范围解析操作符应位于类名和希望访问的静态属性之间。
When using manual peer recovery, this access is enforced by the operator who only triggers peer recovery processing for servers that are unavailable.
当操作者使用手动对等恢复引发对出现故障的服务器的对等恢复处理时,可对恢复日志进行强制访问。
If specified, it requests an access plan using an XISCAN operator over this particular XML index.
如果指定了索引名的话,它将对特定的xml索引使用XISCAN操作符来请求一个访问计划。
The proposed tie-up with OMX, a Scandinavian exchange operator, would offer NASDAQ access to widely used trading technology.
研讨中的纳斯达克与斯堪第那维亚交易所运营商OMX的合作,可以使纳斯达克得以获得广泛使用的交易技术。
Ignacio Mas of the Gates Foundation points out that ensuring secure text-message transactions will often require an agreement with a mobile operator, which controls access to the phone's SIM card.
盖茨基金会的IgnacioMas指出,为了确保短信交易的安全,通常要同控制手机SIM卡访问的移动运营商签署协议。
To further restrict sugroups access AIX provides the NOT operator '! '. The format for the rule is.
为了进一步限制sugroup访问,AIX提供了NOT操作符' ! '。
Application information give a program access to certain types of system-maintained information, such as the time, data and operator (ID).
应用信息服务程序使程序可以去访问某些系统保存的信息,例如时间、日期及操作员标识。
Access to read the programme reference for a particular smart card and consumer can be controlled by the TV operator.
为特定智能卡和用户读示程序基准的接入权可以由TV操作员进行控制。
Its design concept integrates natural light, shading, program, access and views, making the component the key operator of the transition between interior and exterior Spaces.
它的设计理念,集自然光,遮阳,程序,访问和意见,使组件之间的内部和外部空间的过渡的关键操作。
Defines an iterator that can access elements in a container in the forward direction by using the increment operator and in the backward direction by using the decrement operator.
定义一个迭代器,该迭代器可以向前(通过使用递增运算符)或向后(通过使用递减运算符)访问容器中的元素。
After the name of a class or structure, type the members access operator or scope operator (as shown earlier in this topic).
在类别或结构的名称后面,输入成员存取运算子或范围运算子(如本主题稍早所述)。
应用推荐