Like its name suggests, this fetch action makes an HTTP request to fetch the configured source URL.
顾名思义,此获取操作发出HTTP请求以获取已配置的源url。
Because there are no additional predicates to be applied by the fetch operation, the output cardinality of the fetch node is also eight.
因为这里没有通过提取操作应用附加的谓词,所以提取节点的输出基数也是8个。
Notice that the fetch rule is set to lazy, so you will not fetch the order when someone asks for the customer.
注意,该获取规则被设置为Lazy,所以当有人查询该客户时,您将不获取该订单。
To prevent numerous fetch requests, we can configure an XML Manager to cache the fetch action results.
为了防止大量的获取请求,我们可以配置一个XMLManager来缓存获取操作的结果。
If we try to eager fetch the department entity then for every fetch of same department the database is hit for department information even though it is available in our second level cache.
如果对department实体采取预先抓取,那么对于同样的department实例,纵使它位于二级缓存中,每次也都需要查询数据库。
A find or query operation can be decorated to apply a fetch plan to customize the set of entities to fetch from the database.
查找或查询操作还可以通过修饰后应用一个查询计划来自定义从数据库查询得到的实体集。
The qualifying RIDs are then taken by the fetch node to fetch the corresponding records and data pages from the table space into the DB2 buffer pool.
然后通过FETCH节点获取合格的RID以提取来自表格空间的相应记录和数据页面到db2缓冲池。
If DB2 does not need to sort, then all of the work for finding a qualified row (or rows with multi-row FETCH) will be done at each FETCH.
如果DB 2不需要排序,那么所有寻找一个符合条件的行(或者有多行FETCH的行)的工作在每个FETCH中就可以完成。
As illustrated in Figure 1, by fetching multiple rows, your applications reduce the number of SQL calls and can fetch a rowset using a single fetch statement.
如图1所示,通过获取多个行,应用程序减少了SQL调用,并且可以使用一个fetch语句获取行集。
Use fetch method to fetch result into file.
使用fetch方法将结果取到文件中。
This pattern resembles the fetch and Flag pattern, because it also includes a fetch step.
该模式集中了Fetch与Flag模式,因为它还包含了一个读取步骤。
Trackers that are passed into the User track node can also be fetch for further editing by clicking the fetch button and selecting one or more trackers from the list.
追踪器传入用户跟踪节点也可以获取进一步编辑点击获取按钮并选择一个或多个追踪器从名单上。
Listing 19 lists the plan showing the efficient use (FETCH (8)) of ORDER BY and FETCH FIRST 1 ROW ONLY discussed above.
清单19列出的计划展示了使用前面讨论的ORDER BY的(FETCH(8))和FETCHFIRST1ROWONLY的效率。
Similarly, when a FETCH statement includes the BULK COLLECT clause, the variable used in the FETCH must be an array.
同样,FETCH语句包括BULKCOLLECT子句时,用于 FETCH的变量必须是阵列。
If the page is already cached browser will fetch it from the cache, otherwise browser will fetch it from the Internet and store it in the cache.
如果页面已经被缓存的浏览器会从缓存中获取,否则浏览器会从互联网上获取它,并将其存储在缓存中。
In practice, I have found fetched properties to be less useful and less flexible than either creating a stored fetch request or building the fetch request in code.
在实践中,我发现抓取的属性不太有用,比创建存储的抓取请求或者在代码中构建获取请求。
In practice, I have found fetched properties to be less useful and less flexible than either creating a stored fetch request or building the fetch request in code.
在实践中,我发现抓取的属性不太有用,比创建存储的抓取请求或者在代码中构建获取请求。
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