查询词典 SQL

Indexing performance has always been the Achilles' heel of SQL Server's full-text feature.

索引的表现一直是致命的SQL Server的全文检索功能的弱点。

If the entire shared pool has already been allocated, Oracle can deallocate items from the pool using a modified LRU algorithm until there is enough free space for the new statement's shared SQL area.

如果共享池内没有可用的内存，Oracle 将使用改进的 LRU算法清除共享池内已有的共享 SQL 区，直到其中有足够的空间容纳新语句的共享 SQL 区。

Firstly, those useless to classify texts are filtered according the category document frequency distribution difference of each feature; and then in order to overcome the limitations of TF-IDF weighting formula a novel weighting formula called TF-CDF is presented . Calculate the weight of each feature according to TF-CDF and build the Vector Space Model for the entire corpus. To select significant features, a feature selection approach based on Variable Precision Rough Set is also proposed and implement with some SQL sentences combining the definitions of VPRS with the advantages of SQL sentences.

该文首先根据特征词的类别分布差异进行特征过滤；然后，分析传统的权值公式TF-IDF的缺点，采用改进的权值计算公式简记为TF-CDF，依据TF-CDF公式计算每个特征词的权值，生成文档集的向量空间模型VSM；接着，提出了一种基于可变精度粗糙理论的特征选择进一步选择对分类贡献度大的特征，并用SQL实现。

Nowadays, with the rapid development of the network, the Internet has become an important way for people to obtain, release and send messages. It also plays a key role in every field, such as in politics, economy, study and daily life. As known to all, forum is one of the well-known network services. It provides a "public" space for all the users to release and get messages, and allows users to discuss their interested topics together. The main functions of the forum system go as follows, user communication, user management, information inquiry and classification. Therefore, this paper plans to introduce the design and implementation of the forum for our school by using ASP+SQL Server2000. The ASP language has many advantages, for example, high security, relieving the load of the user's IE browser and improving the speed of communication. And the SQL Server2000 is a real multi-user, multi-thread database server.

在网络飞速发展的今天，Internet成为人们快速获取发布和传递信息的重要渠道，它在政治经济学习生活等各个方面发挥着重要的作用众所周知，论坛是当今网络中的知名服务之一它开辟了一块"公共"的空间供所有用户发表和读取信息，允许用户对自身感兴趣的话题展开讨论，从而起到集思广益的作用论坛系统的主要功能是：用户交流用户管理信息分类及查找等所以，经过分析，使用ASP+SQL2000的语言来开发本校园论坛ASP语言具有开发软件的特性，其优点是安全性能高，能减轻客户端浏览器的负担，提高交互速度而SQL Server2000是一个真正的多用户多线程SQL2000数据库服务器

PL/SQL procedure successfully completed.However, we can issue a SQL statement to show us exactly what went on.

然而，我们可以通过一条简单的sql语句，就能精确的知道我们的程序做了什么。

Beginning SQL Queries is aimed at intelligent laypeople who need to extract information from a database, and at developers and other IT people who are new to SQL.

从SQL查询的目的是智能教友谁需要提取的信息数据库，并在开发和其他IT人谁是新的数据库。

We require that a driver support at least ANSI SQL-2 Entry Level. This gives applications that want wide portability a guaranteed least common denominator.

事实上，一个程序的查询甚至可以不是SQL的，或者是SQL的一个特殊演化，例如：为专门数据库设计的文本或者图形查询。

Tablespaces. Open table def. and copy all then paste into SQL Query window box

同时打开SQL用以定义表格打开表格定义，复制所有后粘贴到SQL的询问窗口中

The database of this system is based on Microsoft Visual Database Tools built in Visual Basic 6.0.And the interface of this system is made of costumed windows and system windows. combines At the same time, we use band control and DAO for accessing database and SQL for the implement of finding operation. and use SQL inquire about definitely Realize the book, the stock, to finish granting relevant to operate it teaching materials of teaching materials of teaching material on the basis of this.

本系统的数据库是通过可视化数据管理器建立起来的，而系统的界面采用了自定义窗体和系统窗体相结合的方式制作；同时，系统采用绑定控件访问数据库和数据访问对象访问数据库两种访问方式，并使用SQL查询语言对系统查询功能进行编码并在此基础上实现教材的预订、教材的库存、教材的发放等相关操作。

The highway administrative system of Kweichow Province adopts powerbuilder and sql server 2000 to write.Sql server has the following characteristics: Construct, dispose and manage enterprise application program, make security its, elasticity betterrer and more reliable.

贵州省公路管理系统采用powerbuilder和sql server 2000编写。sql server 具有以下特性：构建、部署和管理企业应用程序，使其更加安全、伸缩性更强和更可靠。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。