SQL RDBMS的意思|示意

Therefore, rather than call any database library -- whether for a specific RDBMS or via a mechanism like ODBC -- xml2sql and dtd2sql create simple textual SQL statements.

因此，不调用任何数据库的库 -- 无论是特定的 RDBMS 还是通过象 ODBC 这样的机制 -- xml2sql 和 dtd2sql 都创建简单的文本 SQL 语句。

Once you understand SQL, you’ll have a much better grasp on the limitations of an RDBMS.

一旦你理解了SQL，你会更好地领会一个关系型数据库管理系统的局限性。

SQL server and SQL Express are RDBMS (relational database management systems) that run on platforms (physical hardware, such as workstations or servers).

SQL Server与SQL Express是在平台(物理性硬件，例如工作站或者服务器)上运行的RDBMS(关系数据库管理系统)。

Once you construct your DSN and create an XML_Query2XML object instance, it's time to actually execute an SQL query on the RDBMS and turn the result into XML.

构造DSN并创建XML_Query 2x ML对象实例后，即可实际对RDBMS执行SQL查询并将结果转换为XML。

The basic optimization methods of the SQL query language is presented by comprehending executive tactics of RDBMS optimizer and analyzing the factors that affect the SQL query languages efficiency.

介绍RDBMS优化器的执行策略和分析了影响SQL查询效率的因素的基础上，提出了优化SQL查询效率的基本方法，以提高数据库查询的执行效率。

The basic optimization methods of the SQL query language is presented by comprehending executive tactics of RDBMS optimizer and analyzing the factors that affect the SQL query language efficiency.

通过了解rdbms优化器的执行策略，并分析了影响SQL查询语句效率的因素，提出了SQL查询语句的基本优化方法，充分利用这些方法能提高SQL查询语句的执行效率。