Design and realization of data dictionary management system;

Using data dictionary to implement the schema evolution of object-oriented database;

Software precautionary maintennance design based on data dictionary;

The application of data-dictionary is put forward in order to support the filtration of message.

One of the limitation for traditional data-dictionary design pattern in information systems is short of expansibility,and it is unadapted for the appearance of new information resources.

Recovery solutions to logic damage of Oracle database;

Integration of WWW Browse and Database Access ——The mechanism and instance of Oracle database gateway;

Performance Optimization about Oracle Database and Its Application in CRM System;

Research of Oracle Database Application Security Problems;

Extending of Spatial Data Types and Spatial Functions in Oracle;

Using XSU to exchange data between Oracle and XML;

This arranging and compiling data system is according to the requirement of the administration of Dujiang weir irrigation area,using module to make structure design and Delphi language to edit programmer on basis of Oracle data base platform software system.

Aim at several factors influenting the oracle data base performance of internet-based enrollment system of colleages and Universities, the optimization method was discussed from the software and hardworce term.