Based On The The Oracle9i Songliao Basin Water Resources Management In Large-scale Spatial Database Building Method Of Study

The thesis analyses firstly the research status, development trend and key construction technology of spatial database. Then the construction methods of Water Resource Management Large Spatial Database System for Song-Liao River Basin are discussed. This study is important for Song-Liao River Basin water resource comprehensive plan, management, decision-making data construction and significant for the improvement of Song-Liao River Basin water resource information management level. Based on "Oracle spatial" and "MapX", the thesis achieves main function exploitation of the system, including data import and edit, spatial searches and query, statistic analysis, spatial analysis, decision-making analysis, data export and etc. The thesis also resolves a series of questions such as seamless integration of huge spatial data and attribute data, query and searches, spatial data maintenance of integrality and coherence, distributed data process and maintenance, transaction processing, cartography, data security control and so on.The thesis is divided into five chapters as follows: The first chapter introduces the research status and development trend of spatial database management system, explains the construction aim and significance of Song-Liao River Basin Water Resource Management Large Spatial Database System, shows the source of the data and materials using in the study, and demonstrates the work flow. The second chapter summarizes the key technologies of large spatial database construction, including huge spatial data integration management, vector and grid data integrating method, seamless integration of many source spatial data, spatial database engine, spatial data multiple representation and etc. The third chapter introduces the study area, including its nature environment and social economic development. The forth chapter studies the construction methods of Song-Liao River Basin spatial database based on "Oracle9i Spatial", including Song-Liao River Basin spatial database metadata management, spatial data accessing, spatial index, spatial data organization and so on. The fifth chapter discusses the development methods of Song-Liao River Basin Water Resource Management Large Spatial Database System, including database preparation, data collection, encode, uploading, spatial database configuration, system function realization and so on. At last the research conclusion of this thesis is stated.