Single form site index table was constructed after derived curve was expanded by differential method.
用差分法展开导向曲线,编制了单形立地指数表。
The problem due to grid size among dat a number in index table, time consuming and data validity was solved.
解决了因网格疏密程度引发的数据存储量、索引时间与网格所包含的有效信息量之间的矛盾;
The method and procedures of compilation of site index table were introduced in detail for cottonwood clones in Guichi.
本文详细介绍美洲黑杨无性系立地指数表的编制方法和步骤,为贵池市美洲黑杨无性系科学经营提供依据。
You should create an index in a separate table space so that if something goes wrong with the index table space, you can easily drop it and then recreate the same indexes.
您应该在单独的一个表空间上创建索引,这样如果索引表空间出现问题,您可以直接删除该表空间,然后重要创建相同的索引。
Besides, the search steps in probabilistic CYK algorithm is reduced and the probabilistic CYK algorithm is improved by rearranging grammar rules of SCNF and establishing the index table.
此外通过重排scnf语法规则和建立索引表对概率CYK算法进行改进,减少中间搜索步骤所需的时间以提高效率。
At the same time, a resource index table is established at the central node to overcome the defect of centralized resource discovery over-rely on the central server of the original grid system.
同时,在中心节点建立一个资源的索引表,这样就克服了原来网格系统集中式资源发现过于依赖中心服务器的缺点。
After the analysis of the updating condition for index table and probability interval, an optimized algorithm based on partial parallel scheme was presented for arithmetic encoder(AE) in JPEG2000.
通过对索引表和概率间隔区间更新条件的分析,提出了一种JPEG2000算术编码器的部分并行优化算法。
When you do add an index to a table to cut the CPU cost and run time of a query, you want to get the most out of that new index as practically possible.
如果您的确要向一个表添加一个索引来削减查询的CPU成本和运行时间,您可能会想在实际情况允许的条件下尽可能多地利用那个新索引。
If the database designer has created a Primary partition Index on a table, queries should incorporate the partitioning column.
如果数据库设计者已在表上创建了主分区索引,那么查询应当与分区列结合。
If the value is set to 0, then the optimizer chooses index scans over table scans if appropriate indexes exist, without even considering the estimated costs.
如果将其值设置为0,那么当存在合适的索引时,优化器就选择索引扫描而非表扫描,甚至不考虑估算成本。
The script creates a report that provides details about table and index usage.
该脚本创建一个包含关于表和索引使用的细节的报告。
If you use this syntax to create an index on a table that other users are accessing, the index is not available until no user is updating the table.
如果使用这种语法在其他用户正访问的表上创建索引,那么只有当没有用户更新该表时,创建的索引才能使用。
If you expect an index to have a high cluster factor, just reorganize the table on that index.
如果您期望一个索引具有较高的群集因子,就只要重组该索引上的表。
Q: How do I calculate the table and index size for a partitioned table (or any table for that matter)?
Q:如何计算已分区表(或者任何相关的表)的表大小和索引大小?
An index only scan is an index access that is not followed by a table access because the index itself contains all the requested data.
仅扫描索引是未包含表访问的索引访问,因为索引本身包含了所有被请求的数据。
Manually creating an index is not recommended because the history table is frequently updated and the index could hurt update performance.
并不推荐您手动创建一个索引,因为历史表格会频繁更新,而索引可能会损害更新的性能。
If the inner table does not have an index, the database server will compare the cost of building an index on the table to the cost of a sequential scan, and will choose the one with the least cost.
如果内部表没有索引,那么数据库服务器就会将在表上构建索引的成本与连续扫描的成本进行比较,然后选择成本最低的那一种方法。
Usage of this index is costly because about 100,000 RIDs (record IDs) have to be read from the index before the table CARS is accessed.
使用这个索引会带来较高的成本,因为在访问cars表之前,需要从索引中读取大约100,000个RID(记录id)。
Finally, an index on the additional column is created and the table reorganized based on that index.
最后,在附加列上创建一个索引,并根据那个索引对表进行重组。
To check integrity of table data, you can index keys to table rows, and table rows to associated LOBs.
要检查表数据的完整性,您可以在表的数据行设置索引键,并将表的数据行关联到相关的LOB。
If you build the index immediately, the table space is scanned, which can take a considerable amount of time.
如果立即建立索引,则需要扫描表空间,这样要花费比较多的时间。
If you don't specify an index or long table space, partitioned indexes and long column data will go in the same table space as the data.
如果不为索引或长列指定表空间,分区索引和长列数据会存储在与数据相同的表空间中。
The index exploited for the inner table happens to be a clustered index.
利用内部表的索引恰好是一个聚集索引。
These counters are incremented by the respective DML operation occurring on the partition, both table and index partitions.
这些计数器由表和索引分区中发生的各个DML操作实现值累加。
This library has no catalogue, and none of the books has an index or table of contents.
这个图书馆没有书本目录,每本书也没有索引或内容目录。
They can reduce concurrency and availability when executed against a live table or index space.
当根据活动表或索引空间执行时,会降低并发性和可用性。
The primary key and any unique index of the table must be a superset of the associated partitioning key.
表的主键和所有惟一索引都必须是相关分区键的超集。
Otherwise, its data or keys will be scattered throughout the extents that have been occupied by the table or index.
否则,其数据或键将分散在该表或索引所占用的所有区段中。
"Extensive" in this case may mean that 10 to 20 percent of the table and index data has been affected.
此处的“大量”可能意味着10%到20%的表和索引数据都受到了影响。
This section will deal with conversion issues that come up with DDL statements, like table and index creation statements.
本节讨论ddl语句(比如表和索引创建语句)面对的转换问题。
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