Oracle Spatial 9.2用户指南与参考：地理信息处理关键技术

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Oracle Spatial 是Oracle Corporation开发的一款强大的空间数据处理和分析工具，它作为Oracle数据库的一个扩展模块，专注于地理信息系统（GIS）功能。Oracle Spatial在Release 9.2版本中发布，于2002年3月更新，文档包含了用户指南和参考手册。该产品由Chuck Murray担任主要作者，其他多位专家如Dan Abugov、Nicole Alexander等也做出了贡献。该文档强调了Oracle Spatial包含专有的软件和相关文档，这些内容受到Oracle Corporation的版权保护，并受专利法、工业产权法等法律约束。用户在使用过程中必须遵守严格的许可协议，这包括对程序的反向工程、拆解或逆向编译的限制，除非是为了与独立创建的软件实现互操作，或者法律另有规定。文档中提到，未经Oracle Corporation许可，不得随意修改或传播文档中的信息，因为它们可能会随时更新。如果用户在使用过程中发现文档存在问题，应通过书面形式报告给Oracle Corporation。此外，Oracle Corporation并不保证文档的完全准确无误，这表明用户在依赖其内容时应保持警惕并可能需要自行验证。 Oracle Spatial的主要功能包括空间数据的存储、处理、分析和可视化，支持多种地理数据格式，如Shapefile、GeoJSON等。它能够执行复杂的地理分析任务，如空间查询、缓冲区分析、路线规划、网络分析等，广泛应用于测绘、城市规划、房地产、商业智能等领域。随着Oracle数据库的发展，Oracle Spatial也在不断迭代更新，以满足企业级GIS应用的需求。 Oracle Spatial是Oracle数据库生态系统中的关键组件，对于任何从事GIS工作或者需要在数据库环境中处理空间数据的企业和个人来说，理解和掌握其功能、特性以及使用规则是至关重要的。

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List of Tables

1–1 Choosing R-tree or Quadtree Indexing............................................................................ 1-11

1–2 SDOINDEX Table Using Fixed-Size Tiles........................................................................ 1-19

2–1 Valid SDO_GTYPE Values................................................................................................... 2-7

2–2 Values and Semantics in SDO_ELEM_INFO .................................................................. 2-12

2–3 Columns in the xxx_SDO_INDEX_INFO Views ............................................................ 2-30

2–4 Columns in the xxx_SDO_INDEX_METADATA Views............................................... 2-31

2–5 Columns in an R-tree Spatial Index Data Table.............................................................. 2-33

2–6 Columns in a Quadtree Spatial Index Data Table ........................................................ 2-34

2–7 Columns in the SDO_DIST_UNITS Table ....................................................................... 2-35

2–8 Columns in the SDO_AREA_UNITS Table..................................................................... 2-35

5–1 MDSYS.CS_SRS Table........................................................................................................... 5-7

5–2 MDSYS.SDO_ANGLE_UNITS Table................................................................................ 5-11

5–3 MDSYS.SDO_DIST_UNITS Table..................................................................................... 5-11

5–4 MDSYS.SDO_DATUMS Table........................................................................................... 5-12

5–5 MDSYS.SDO_ELLIPSOIDS Table ..................................................................................... 5-14

5–6 MDSYS.SDO_PROJECTIONS Table................................................................................. 5-15

6–1 Highway Features and LRS Counterparts....................................................................... 6-21

8–1 Spatial Index Creation and Usage Statements .................................................................. 8-1

8–2 SDO_LEVEL and SDO_NUMTILES Combinations....................................................... 8-16

9–1 SDO_GEOMETRY Type Methods ...................................................................................... 9-1

10–1 Spatial Usage Operators..................................................................................................... 10-1

10–2 Keywords for SDO_NN Parameter .................................................................................. 10-6

11–1 Geometry Functions............................................................................................................ 11-1

12–1 Spatial Aggregate Functions.............................................................................................. 12-1

13–1 Functions and Procedures for Coordinate Systems ....................................................... 13-1

13–2 Table to Hold Transformed Layer..................................................................................... 13-6

14–1 Functions for Creating and Editing Geometric Segments............................................. 14-1

14–2 Functions for Querying Geometric Segments................................................................. 14-2

14–3 Functions for Converting Geometric Segments.............................................................. 14-3

14–4 Functions to Use Instead of SCALE_GEOM_SEGMENT............................................ 14-78

15–1 Migration Procedures ......................................................................................................... 15-1

16–1 Tuning Functions and Procedures.................................................................................... 16-1

17–1 Utility Functions and Procedures...................................................................................... 17-1

B–1 Section of the SDOINDEX Table ......................................................................................... B-4

C–1 Spatial Features Supported for Locator.............................................................................. C-2

C–2 Spatial Features Not Supported for Locator...................................................................... C-3

C–3 Feature Availability with Standard and Enterprise Editions.......................................... C-4

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