详细地介绍了船舶技术性能数据库系统的功能、构成及软硬件关键技术。
The function, the structure and the key software and hardware technique about STPDS are presented.
那么您又该如何配置系统和数据库性能呢？
How do you then profile your system and database performance?
在这个实验中，我们比较了数据库通道的性能。
In this trial, we compare the performance of database vendors.
在任何一种数据库系统中，性能是最重要的因素之一。
Performance is one of the most important factors in any type of database system.
他们把数据库当成对象使用，并疑惑性能为什么如此之差。
They wrap the database in objects and wonder why the performance is so poor.
避免在空数据库上运行RUNSTATS，因为那将导致低劣的性能。
Avoid running RUNSTATS on an empty database, as this will lead to poor performance.
缓冲池的用途是为了提高数据库系统的性能。
The purpose of the buffer pool is to improve database system performance.
每个从网络到数据库服务器的往返行程从性能角度来看是昂贵的。
Each network round trip to the database server is expensive in terms of performance.
本文的范围是数据库设计性能。
覆盖自由空间对数据库性能有负面影响。
Overwriting free space has an adverse affect on database performance.
然而，这种方式也会降低数据库性能。
数据仓库数据库设计的重点在于查询性能。
The design of a data warehouse database is focused on query performance.
我们通过单独的系统数据库文件系统获得了更好的性能。
We obtained better performance with separate file systems for system databases.
而在其他的一些时候，您可能会决定牺牲数据库性能，以减少复杂性。
Other times, you may decide to limit your complexity, and attack database performance instead.
经验表明，内存数据库可以提供出色的性能和很低的延迟。
Experience shows that memory databases provide superior performance and low latency.
数据库的大小对性能影响很小。
一般，主要涉及系统和数据库的性能。
In general, the performance of your system and database is the major concern.
此时将会存在数据丢失的现象，但对数据库性能的影响可降低到最低限度。
There will be data loss, but the impact to database performance is minimized.
数据库需要信息，这些信息经常以索引的格式才能有不错的性能。
Your database needs information, often in the form of indexes, to perform well.
Oracle和IBM数据库的性能指标。
测试性能：确保利用一个测试数据库来测试索引性能。
Test performance: Be sure to test the index performance with a test database.
这对数据库性能有些影响。
在对数据进行压缩的同时，也极大地改善了数据库系统的性能。
When compressing the data, it can also greatly improve the performance of the DB system .
数据库设计的优劣直接影响到系统的运行性能。
The database design has direct influence on the operating performance of system.
大型数据库应用系统的性能优化是一项非常复杂的工作。
Optimization of a macro-database application system is a quite complex job.
我如何通过复制机制提高整个数据库系统的性能？
How can I use replication to improve performance of my system?
结果，数据库软件的性能一下就飙升上来了。
As a result, database software gets an immediate performance increase.
随着时间的推移，数据库的性能是否在明显的下降呢？
Is there evidence that the database performance has degraded over time?
独立性是数据库系统的一个重要性能指标。
The independence of data is one of performance of database system.
独立性是数据库系统的一个重要性能指标。
The independence of data is one of performance of database system.
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