查询词典 SQL

Software Description: About PL/SQL Developer, This is an integrated development environment for Oracle PL/SQL stored-program units like packages,triggers and types.

PL/SQL Developer 这是被集成的用于 Oracle PL/SQL 的开发环境储存包，触发器和类型那样的程序单位。

The system uses three systems structures, and developed by JSP-JavaBean-SQL Server 2000 technology. Videlicet, at foreground is realized displaying logic by JSP WebPages, in the middle used JavaBean component complete the complicated business logic inner system, at background uses SQL Server 2000 databases accomplish data logic, and design a solution for a network examination system.

系统采用的三层体系结构，JSP+JavaBean+SQL Server 2000开发，即前端由JSP网页实现表现逻辑，中间使用JavaBean的组件实现系统内部复杂的业务逻辑，后端使用SQL Server 2000数据库实现数据逻辑，并设计了网上考试系统的解决方案。

The system uses three systems structures, and developed by JSP-J**aBean-SQL Server 2000 technology. Videlicet, at foreground is realized displaying logic by JSP WebPages, in the middle used J**aBean component complete the complicated business logic inner system, at background uses SQL Server 2000 databases accomplish data logic, and design a solution for a network examination system.

系统采用的三层体系结构，JSP+J**aBean+SQL Server 2000开发，即前端由JSP网页实现表现逻辑，中间使用J**aBean的组件实现系统内部复杂的业务逻辑，后端使用SQL Server 2000数据库实现数据逻辑，并设计了网上考试系统的解决方案。

Prior to taking on his current role, Prakash served as Director of Program Management in the SQL Server Strategy team where he was responsible for developing long-term product and business strategy, driving the planning effort for future releases, as well as driving key technical and business initiatives crucial to the success of SQL Server.

在这个职务之前，Prakash 曾经在 SQL Server 策略团队担任计画管理总监，他负责设计长期研发的产品和商业策略，推动未来新版本的规画，并且促进与 SQL Server 成功的相关重要技术与商业计画。

SQL Server is a client/server relational database management system that uses Transact-SQL to send requests between a client and SQL Servet.

客户机/服务器体系结构它使用事务SQL。

In fact, good SQL programming in many cases decomposes complex requests into a sequence of simpler SQL statements.

事实上，在许多情况良好的SQL编程复杂要求分解成简单的SQL陈述顺序。

Object relational mappers like LINQ to SQL handle automatically creating and executing the appropriate SQL code for you when you perform a query or update against their object model.

当你对像LINQ to SQL这样的对象关系映射生成的对象模型进行查询或者更新时，它们会自动地处理生成和执行适合的SQL语句。

Object relational mappers like LINQ to SQL handle automatically creating and executing the appropriate SQL code for you when you perform a query or update against their object model.

在对模型对象执行一个查询或更新的时候，象 LINQ to SQL之类的对象关系映射可以自动地创建和执行合适的SQL语句。

From ORACLE system structure, the paper organizes and allocates memory with SGA and PGA. The key of performance tuning is to confirm the hit ratio of system. The ORACLE system's store structure includes physicial structure and logical structure. So , it is the basis to decide the size of tablespace, data file and control file. The database object includes index, cluster, views and store procedure etc., the object have important effect on database. Lastly, it contrasts the ways of Based on Cost and Based on Rule and organizes the SQL under SQL/PLUS system environment.

本文从目前的医院信息系统现状分析，提出系统性能评价指标，并从ORACLE体系结构出发，对内存区中的系统全局区及程序全局区进行合理的组织与分配，确定合理的命中率，这是性能优化的关键；ORACLE存储结构采用的互为关系的逻辑存储结构与物理存储结构，故确定其中的表空间、数据文件、控制文件的大小是性能优化的基础；数据库对象结构中的索引、簇、视图、存储过程等对其进行合理的设计，对大型数据库的性能有着重要的影响；最后便是在SQL／PLUS境下，通过与基于代价与基于规则的方法进行比较，对合理高效的SQL语句进行组织，并列出优化后系统性能的情况。

From ORACLE system structure, the paper organizes and allocates memory with SGA and PGA. The key of performance tuning is to confirm the hit ratio of system. The ORACLE systems store structure includes physicial structure and logical structure. So , it is the basis to decide the size of tablespace, data file and control file. The database object includes index, cluster, views and store procedure etc., the object have important effect on database. Lastly, it contrasts the ways of Based on Cost and Based on Rule and organizes the SQL under SQL/PLUS system environment.

本文从目前的医院信息系统现状分析，提出系统性能评价指标，并从ORACLE体系结构出发，对内存区中的系统全局区及程序全局区进行合理的组织与分配，确定合理的命中率，这是性能优化的关键；ORACLE存储结构采用的互为关系的逻辑存储结构与物理存储结构，故确定其中的表空间、数据文件、控制文件的大小是性能优化的基础；数据库对象结构中的索引、簇、视图、存储过程等对其进行合理的设计，对大型数据库的性能有着重要的影响；最后便是在SQL／PLUS境下，通过与基于代价与基于规则的方法进行比较，对合理高效的SQL语句进行组织，并列出优化后系统性能的情况。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐