Spatial Databases: With Application to GISElsevier, 30. 5. 2001 - Počet stran: 410 Spatial Databases is the first unified, in-depth treatment of special techniques for dealing with spatial data, particularly in the field of geographic information systems (GIS). This book surveys various techniques, such as spatial data models, algorithms, and indexing methods, developed to address specific features of spatial data that are not adequately handled by mainstream DBMS technology. The book also reviews commercial solutions to geographic data handling: ArcInfo, ArcView, and Smallworld GISs; and two extensions to the relational model, PostgreSQL and Oracle Spatial. The authors examine these underlying GIS technologies, assess their strengths and weaknesses, and consider specific uses for which each product is best suited. |
Vyhledávání v knize
Výsledky 6-10 z 89
... operations on physical data structures. Note that this is quite different from file processing, in which the structure Users/programmers ! Application programs/queries A W DBMS ( Software to CHAP T E R 1 An Introduction to Spatial ...
... operations on this file, are embedded in an access program. This mechanism is achievable through the use of different levels of abstraction. It is customary in the database community to distinguish three levels in a database environment ...
... operations provided by a DBMS depend on the logical data model supported by this DBMS. Nowadays, the most widely used is the relational data model. The following illustrates the development of an application with relational databases ...
... operations. To efficiently evaluate the query, these operations must be properly combined. An important issue in query processing is the design of efficient join algorithms. • Query optimization. Because the user query is purely ...
... operations that take one or many themes as input and give as a result a theme. The section then moves to more 1.3. I complex operations and ends with typical GIS operations, 1.3 Geospatial Data Manipulation 11 1.3 Geospatial Data ...
Obsah
1 | |
29 | |
CHAPTER 3 LOGICAL MODELS AND QUERY LANGUAGES | 69 |
CHAPTER 4 THE CONSTRAINT DATA MODEL | 113 |
CHAPTER 5 COMPUTATIONAL GEOMETRY | 149 |
CHAPTER 6 SPATIAL ACCESS METHODS | 201 |
CHAPTER 7 QUERY PROCESSING | 267 |
CHAPTER 8 COMMERCIAL SYSTEMS | 311 |
BIBLIOGRAPHY | 373 |
INDEX | 395 |
ABOUT THE AUTHORS | 409 |
Další vydání - Zobrazit všechny
Spatial Databases: With Application to GIS Philippe Rigaux,Michel Scholl,Agnès Voisard Omezený náhled - 2002 |