分析表明，很多要建索引的对象已经被存储在磁带上。
The analysis showed that many objects to be indexed were already stored on tape.
提示8：定义倾斜的XML索引，并避免为任何东西都建索引
Tip 8: Define lean XML indexes, and avoid indexing everything
文档统计数据：已建索引文档的总数、以及索引的各个域。
DocumentStats: Total number of documents indexed, as well as fields in the index.
也就是说如果某列存在空值，即使对该列建索引也不会提高性能。
If some lists existence sky, be worth that is to say, although be built to this, index also won't improve performance.
为搜索建索引——有时你想要可用的字段在你的Document。
Indexed for searches - sometimes you'll want to have fields available in your Documents that don't really have anything to do with searching.
这是第一个可能需要技巧的一步，看你对哪种文件建索引，那些文件中有多少数据是有结构的，有多少结构是你想保留的。
This is the first potentially tricky bit, depending on what kind of files you're indexing, how much the data in those files is structured, and how much of that structure you want to preserve.
一些库甚至包含预建的自动完成功能，如您在Google搜索引擎中所看到的，在输入时会出现常见搜索项。
Some libraries even include pre-built auto-completion functions, as you might have seen on the Google search engine, where typical search queries are suggested as you type.
并且对遥感影像库所特有的功能：空间参照，分块后空间索引，建影像金字塔等关键技术进行了研究。
And a research on the remote sensing image database's special functions such as Georeferencing, Pyramiding, spatial indexing is also made.
美国纽约长岛地区一小镇使用“谷歌地球”地图搜索引擎，查出大约250个未经申报的私建泳池。
A town on New York's Long Island has used the satellite image service of Google Earth to find about 250 pools whose owners never filled out the required paperwork.
在迟子建的小说世界中，“自然”与“想象”是两个至为重要的索引关键词，分别指向于人的外部空间与内在生存。
In the novel world of Zijian Chi builds, "nature" and "imagination" are the two most important index keywords, difference is more directional than inner survival and the external space of person.
在计算列上建非聚集索引是有物理保存的吗?。
Computed column ' in table ' cannot be persisted because the column is non-deterministic.
很多时候，有一种问题，就是为啥我insert慢，建 索引慢，建物化视图慢…
In many case, there is a question, why so slowly in my inserting, creating index, materialized view …
很多时候，有一种问题，就是为啥我insert慢，建 索引慢，建物化视图慢…
In many case, there is a question, why so slowly in my inserting, creating index, materialized view …
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