使用已经了解的CakePHP知识,创建一个基本的模型、视图和控制器,用于获得word表内容并在执行索引操作时显示。
Using what we already know about CakePHP, create a basic Model, View, and Controller that will get the content of the words table and display them at the index action.
图7显示查询响应时间作为表中文档数(范围从1,000到100,000)的函数(不使用索引或索引表)。
Figure 7 shows the query response times as a function of the number of documents in the table, ranging from 1,000 to 100,000 documents (when no indexes or side tables are used).
对于本文的查询样例,图12显示了索引报告,它描述了引用表的现有索引。
For the sample query in this article, Figure 12 shows the index report, which describes the existing indexes of the referenced tables.
taxonomy_dhtml模块使用一种不同的技术,它循环遍历所有词汇表,并在以词汇表的vid 为索引的单独区块中显示各个词汇表。
The taxonomy_dhtml module uses a different technique by looping over all the vocabularies and displaying each in a separate block indexed by the vocabulary's vid.
如果Web内容作者在他们的页面上添加了一点微数据,比如一些词汇表术语,他们的搜索结果会在以上三种搜索引擎中得到更好的显示。
If web content authors add a little bit of metadata to their pages-just a few vocabulary terms-then their search results show up better in all three search engines.
清单7显示了如何使用db 2 pd实用程序为数据库中的所有表上的索引获取该信息。
Listing 7 shows how to use the db2pd utility to get this information for all indexes on all tables in a database.
以上的样例输出显示了department表有3个索引。
The sample output above shows that the DEPARTMENT table has three indexes.
如果您想要限制db 2 pd实用程序的输出,让它仅显示某些表及其索引,那么使用- tcbstats选项指定表空间id和表id。
If you want to restrict the output of the db2pd utility to show metrics for only a certain table and its indexes, use the -tcbstats option to specify the tablespace ID and table ID.
如果该资料行位于资料表的主索引键,资料列选择器将显示索引键符号。
The row selector displays a key symbol if the column is in the table's primary key.
“已选空间索引”列表显示为表定义的所有空间索引。
Selected Spatial Index list displays any spatial indexes that have been defined for the table.
“已选空间索引”列表显示为表定义的所有空间索引。
Selected Spatial Index list displays any spatial indexes that have been defined for the table.
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