但是，当内容必须动态生成，比如对于电子商务站点或由应用程序和数据库驱动的站点，静态压缩没有什么用处。
Static compression, though, is not useful when the content has to be generated dynamically, such as on e-commerce sites or on sites which are driven by applications and databases.
“动态”意味着查询作为字符串发送给数据库引擎；必须对它进行解析，并生成查询执行计划。
"Dynamic" means that the query is sent into the database engine as a string; it must be parsed and have a query execution plan generated.
此外，数据库可以更好地理解它存储的数据的状态，从而可以生成到数据的更有效和动态的存取路径。
In addition, the database can have a better understanding of the state of the data it stores, and thereby can produce a more efficient and dynamic access path to the data.
这个程序执行一条动态生成的DB2SQL语句，从数据库中获取CURRENTDATE。
This program executes a dynamically prepared DB2 SQL statement to retrieve CURRENT DATE from the database.
SQL是由框架而不是程序员生成的，数据库连接是由系统管理员而不是DBA 管理的，并且动态 SQL 还增加了安全管理难度。
SQL is generated by frameworks not programmers, database connections are managed by systems administrators not DBAs, and dynamic SQL complicates security management.
相比于把“列”映射成程序代码或映射文件中的实体变量，ActiveRecord是在运行中基于你的数据库schema动态生成映射的。
Rather than mapping columns to instance variables in application code or a mapping file, ActiveRecord generates them dynamically at runtime based on your database's information schema.
这种工件常常存储在现有的关系数据库管理系统或文件系统中，或者由Web服务、实时数据feed或其他软件动态地生成工件。
Such artifacts are often stored in existing relational database management systems or file systems, or the artifacts are generated dynamically by Web services, real-time data feeds, or other software.
介绍了能源计量软件系统结构及计量数据的自动统计、报表的自动生成、用户自动变更、动态数据库等功能的实现。
Based on analyzing the system structure of the energy-consumed software, how to collect data, to generate a form and to change data and database automatically is introduced.
将这项技术应用于油田中的地质图绘制方面，解决了油田中多层分布式异构数据库的访问、管理和地质图件的动态生成问题。
This technology solves the problems of access and management of the multi-tier distribution heterogeneous databases for oilfields and dynamic generation of geologic maps.
基于目标和地面电磁反射特性数据库的信息和雷达探测模型，实现了雷达图像动态生成。
By the use of the electromagnetic reflection information of targets and ground in database, the radar detection model can generate radar image dynamically.
系统具有动态的生成数据库与数据表的功能。
The software of the server have the function of creating database and table dynamically.
本系统主要实现四个功能：图像温度检测功能、动态数据库实时存储功能、参数曲线图生成功能和喷煤量的实时控制功能。
This system mostly realizes four functions: the inspecting temperature based on image, the storage on real time of dynamic data-base, creating parameter's graph and controlling the quantity of coal.
基于动态生成的数据库，使用本系统提供的组态工具可以自如地生成各种现场画面，在线配置并编辑、显示现场状态及有关信息。
By use of the provided configuration tools, any kinds of layout can be generated freely. Meanwhile, on line configuration and displaying can also be realized on the base of dynamic database readily.
基于动态生成的数据库，使用本系统提供的组态工具可以自如地生成各种现场画面，在线配置并编辑、显示现场状态及有关信息。
By use of the provided configuration tools, any kinds of layout can be generated freely. Meanwhile, on line configuration and displaying can also be realized on the base of dynamic database readily.
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