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 1-5 z 86
... Definition of polygon P. 44 Definition of polygon P; 45 2. 12 2.13 2.14 2.15 2.16 3.1 3.2 3.3 3.4. 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 8.1 8.2 8.3 8.4 8.5 8.6 LIST OF FIGURES.
... definition and structure of the database. A DBMS hinges on the fundamental concept of data independence. Users interact with a representation of data independently of the actual Physical storage, and the DBMS is in charge of translating ...
... definition metadata Stored database of a file, together with the operations on this file, are embedded in an access ... defines the data representation proposed to the user, and the external level corresponds to a partial view of the ...
... define the database schema that describes the structure of the information managed by the application, as well as the constraints to be respected by the data in the database. Once the schema has been defined, data can be inserted ...
... definition language (DDL). DATA MANIPULATION Generally speaking, within a DBMS environment, manipulating data is done ... defined by two equivalent, formal languages; namely, relational calculus and relational algebra. The first is ...
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 |