gis第二章下ppt課件-wenkub
2023-05-20 12:15:18 本頁面
【正文】 tabase: Many anized data files form the Database 2022年 12月 DBMS—數(shù)據(jù)庫管理系統(tǒng) Data file 1 Data file 2 Data file 3 Application Program 1 Application Program 2 Output 1 Output 2 數(shù)據(jù)庫管理系統(tǒng)是這樣一種系統(tǒng)，它能給用戶提供輸入、查詢、刪除、更新等操作維護(hù)工具，保證數(shù)據(jù)文件的獨(dú)立性、完整性，減少數(shù)據(jù)冗余，實(shí)現(xiàn)資源共享。s ACCESS ?dBase ?Oracle Large systems, usually distributed in, Bank system, government agencies) ?Smaller products which deploy quickly, like FilemakerPro. ? ESRI39。 C Sci 2184311 Cheung Wai Ying 1 Biological Sci 2143588 King Adam 1 Geography Dept. Name No. of A Staff No. of S Staff No. of Students Geography 15 8 260 Physics 32 12 651 Chemistry 35 15 588 Staff ID Last Name First Name Position Dept. 7601624 Smith John Lecturer Geography 7602556 Price Gee A/Prof Biological Sci 7890556 King Craig Professor Mathematics Subject ID Student ID GEOG9150 2202831 GEOG9240 2202831 GMAT9532 2184311 GEOG9240 2184311 GEOG2021 2115211 GEOG9240 2143588 Subject information Student information Staff information Registration information Dept. information Organization of a data base using the relational data model Relational Data Structure 1970 IBM 2022年 12月 Staff ID Dept. Subject Name Credit Subject ID 7601624 Geography Principle of GIS 3 GEOG9240 8461912 Geography Remote Sensing 4 GEOG2021 7400428 Surveying DTM 3 GMAT9532
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