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引用次数: 0
摘要
在本文中，我们提出了一种用于WWW-Oracle接口的新型网关，称为ORAWIS (ORAcle Web interface System)。它支持WWW上各种类型的关系查询，例如两个表之间的连接、一级嵌套查询、条件子句中的ORDER BY和GROUP BY操作。此外，应用程序设计人员可以在WWW上通过带有提示选项的查询选择来建议表的访问方法。它使Oracle优化器选择指定的访问路径。通过这个函数，应用程序设计人员可以选择比优化器所能确定的更有效的方法。设计者还可以在WWW上查看SQL语句的执行时间。
An extended model for integration between the Oracle DBMS and WWW
In this paper, we propose a new type of gateway for WWW-Oracle interface, called ORAWIS (ORAcle Web Interface System). It supports various types of relational queries on the WWW such as join between two tables, one level nested queries, ORDER BY and GROUP BY operations in a conditional clause. In addition, a application designer can suggest an access method for a table by query selection with a hint option on the WWW. It causes the Oracle optimizer to choose the specified access path. By this function, an application designer can choose more efficient way than the optimizer can determine. The designer can also check the execution time of the SQL statement on the WWW.
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