Nested loop join (NLJOIN) with sort composite.
使用复合排序的嵌套循环联接(NLJOIN)。
Example 5: INLIST to Nested Loop Join (query rewrite).
例子5：INLIST改为嵌套循环连接(查询重写)。
The 3 tables in QB1 are joined with nested loop join (NLJ).
QB 1中三个表用嵌套循环(NLJ)连接。
Contrarily to the nested loop join, indexes are no longer so important.
与嵌套循环联接相反，索引不再是非常重要的了。
Here's what happens at execution time for the first leg of the nested loop join.
以下是在执行嵌套循环联接的第一步时将发生的操作。
This is a lot faster than a nested loop join of two table scans without any index usage.
这比不使用任何索引的两个表扫描的嵌套循环连接要快得多。
Update bills (5 seconds); sequential scan of bills with a nested loop read of bill_items.
更新bills(5秒)；利用对bill_items的循环嵌套读取来顺序扫描。
This type of access path is referred to as a nested loop join (NLJOIN) with sort composite.
这种类型的访问路径被称为使用复合排序的嵌套循环联接(NLJOIN)。
Therefore, in Figure 7 the optimizer chooses to sort the composite for the nested loop join.
因此，在图7中优化器选择排序嵌套循环联接的复合物。
Update bill_items (58 seconds); sequential scan of bill_items with a nested loop read of customer.
更新bill_items(58秒)；利用对customer的嵌套循环读取，来顺序扫描bill_items。
So when compared to a nested loop join, the merge scan join may incur the cost for sorting the inputs.
因此，当与嵌套循环联接比较时，合并扫描联接可能对于排序输入产生成本。
Don't write doubly nested loops just to show off your ability to break or continue an outer loop.
不要写双重嵌套循环只是为了炫耀你打破或者继续一个外循环的能力。
There is a nested loop join (NLJOIN, step 4) of the insert (step 5) to an index scan (IXSCAN, step 7).
其中有一个insert（步骤5）与索引扫描（步骤7）之间的嵌套循环连接（NLJOIN，步骤4 ）。
The realization of mapping a class of nested loop algorithms to linear systolic array is studied.
研究了一类多重循环算法的线性脉动阵列实现。
It contains a nested loop that calls exp , cos , and sin , followed by a loop that calls sin and SQRT .
它包含了一个嵌套的循环，该循环会调用exp 、cos以及sin，接下来是一个调用sin和sqrt的循环。
Figure 4 shows a plan using the nested loop join operations at the federated server to evaluate this query.
图4展示了一个在联邦服务器使用嵌套循环连接操作符来计算这个查询的计划。
Because of how nested loop joins work, the second leg (there are four nodes) is executed per outer table record.
因为嵌套循环联接的工作方式，所以每隔一个外部表记录执行第二步(共4个节点)。
As previously stated, ordered input is essential to a merge scan join, but it is not required for nested loop joins.
如前所述，按顺序的输入对于合并扫描联接是必不可少的，但其无需嵌套循环联接。
The result of that join operation then becomes the first input to the second join operation (also a nested loop join).
该联接操作的结果就成为第一个联接操作输入到第二个联接操作（也是一个嵌套循环联接）。
The nested loop join method is used to join the remote query result from each warehouse and the XML composite view result.
这里使用了嵌套的循环连接方法来连接来自每个仓库的远程查询结果和xml合成视图结果。
However, the benefit of the merge scan join is that the inner table does not have to be scanned repeatedly as it does for nested loop joins.
然而，合并扫描联接的好处是不必反复地扫描内部表因为其为嵌套循环联接工作。
For more information about nested loop joins, refer to the appropriate information center link in the Resources section for your DB2 platform.
要了解嵌套循环联接的更多信息，请参考参考资料部分中针对您的DB 2平台的适当的信息中心链接。
In the previous section you learned about one type of access method, index scan (IXSCAN), and one type of join method, nested loop join (NLJOIN).
在之前的部分您已经了解了一种类型的访问方法，即索引扫描(IXSCAN)，和一种类型的联接方法，即嵌套循环联接(NLJOIN)。
Loop transformation is the basic way to maximization parallelism, but it doesn't work in the case of non - perfect nested loop with complicated control flow.
在并行编译中，循环变换是开发程序并行度的主要方法，但存在复杂控制流的非紧密嵌套循环往往无法得到有效的并行化。
Join plan directives that force optimizer to use the designated join method to join tables in the query, either nested loop join, sort merge join, or dynamic hash join.
连接计划指示，强制优化器使用指定的连接方法来连接查询中的表，要么是嵌套循环连接、分类合并连接，要么是动态哈希连接。
If the query includes a join, the optimizer must determine the join plan (hash, sort merge, or nested loop), and the order in which tables are evaluated or joined.
如果该查询包含了连接，那么优化器就必须确定连接计划(hash、sortmerge或nested loop)，以及评估或连接表的次序。
In general, a nested loop join with sort composite is favored by the optimizer if the inner index is well-clustered and the inner table is expected to be probed many times.
一般来说，如果内部索引是良好的集群且预测内部表被多次探测，则使用复合排序的嵌套循环联将受到优化器的青睐。
In my experience, it will usually be a particular inner or nested loop, or a call to some third party library methods, which is the main culprit for running the program slow.
以我的经验来看，导致程序运行速度慢得罪魁祸首可能就是某个内部或嵌套循环，也可能是对第三方库函数的调用。
This paper presents a framework for nested loop transformation, including dependence graph and offset-collection construction, analysis, transformation, and code generation.
本文研究了多媒体应用中常见嵌套循环的变换框架，包含了依赖关系的抽象和建立、分析和变换，以及最后变换代码的生成。
Your code should (almost) never have multiple nested loops (a loop inside a loop inside a loop). Most of the code written today should use Hashtables, simple lists and singly nested loops.
在编写代码时应尽量避免嵌套循环，目前大多数代码都是使用了哈希表、简单链表和单循环。
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