Oracle Spatial DB Spatial Analysis in Oracle 12c Oracle Spatial Operator and Functions SDO_GEOMETRY DML, DDL, DQL

1. Introduction to
Oracle Spatial
EHSAN HAMZEI
DECEMBER, 2016

2. Oracle Spatial??
 Oracle Spatial Technology Products :
 Storage data model using the SDO_GEOMETRY data
type
 Query and analysis using the Index Engine and
Geometry Engine
 Location-enabling using the geocoder by converting
address data into SDO_GEOMETRY data
 Visualization using Map Viewer and Oracle Maps
 Advanced Spatial Engine functionality such as network
analysis and routing

3. Oracle Spatial Architecture

4. SDO_GEOMETRY
 Spatial Data Type in Oracle DB
 How To Create a Table with Spatial Column??

5. SDO_GEOMETRY
 What is a Geometry Data??

6. SDO_GEOMETRY
 SDO Geometry Data Type:
 SDO_G-Type
 SDO_SRID
 SDO_POINTS
 SDO_ELEM_INFO_ARRAY
 SDO_ORDINATE_ARRAY

7. SDO_GEOMETRY: G-TYPE
 attribute specifies the type of shape (point, line,
polygon, collection, multi-point, multi-line, or multi-
polygon) that the geometry actually represents.
 D00T
 Example: 2003, 2001,3006

8. SDO_GEOMETRY: SRID
 This attribute specifies the spatial reference system, or
coordinate system, for the geometry.
 Geo-referenced vs. Local Coordinates!
 Geodetic vs. Projected? (WGS84, UTM-Z39N)
 European Petroleum Standards Group (EPSG)
 Example: 4326 (WGS84),

9. SDO_POINTS
 Its just a syntactic sugar!!
 This attribute specifies the location of a point
geometry
 Example:

10. SDO_ELEM_INFO

11. SDO_ELEM_INFO

12. SDO_ELEM_INFO

13. SDO_ORDINATE
 Insert Coordinate Based on provided ElEM_INFO
 Example:

14. SDO_ORDINATE
 Insert Coordinate Based on provided ElEM_INFO
 Example:

15. SDO_ORDINATE
 Insert Coordinate Based on provided ElEM_INFO
 Example:

16. SDO_ORDINATE
 Insert Coordinate Based on provided ElEM_INFO
 Example:

17. SDO_ORDINATE
 Insert Coordinate Based on provided ElEM_INFO
 Example:

18. SDO_ORDINATE
 Insert Coordinate Based on provided ElEM_INFO
 Example:

19. Complex Geometry

20. Complex Geometry

21. Complex Geometry

22. Complex Geometry

23. Complex Geometry

24. Collections

25. Collections

26. Collections

27. Collections
Creating Collections: The Easy Way :
For NON-OVERLAPPING geometries!!!

28. Collections
More Sophisticated Examples!!

29. Spatial Operators!
 Spatial operators:
 Just as you can specify relational operators in a SQL
statement, such as
“< (less than), > (greater than), or = (equal to), and
so on”, you can likewise use a spatial operator to search
the location (SDO_GEOMETRY) columns of a table for
proximity with respect to a query location
 Need Spatial Index First !!!

30. Spatial Index!
 Create Spatial Index
 Need Spatial Meta Data First!!!

31. Spatial Meta Data Table
 USER_SDO_GEOM_METADATA
 DIM INFO >> INFORMATION ABOUT:
 SDO_DIM_ELEMENT
 DIM_NAME
 MIN/MAX DATA
 TOLERANCE

32. Spatial Meta Data Table
 INSERTION EXAMPLE:

33. REVIEW
 FIRST>> CREATE TABLE
 THEN>> INSERT METADATA
 NEXT>> CREATE SPATIAL INDEX
 FINALLY>> INSERT DATA AND QUERY FROM THE
TABLE

34. SPATIAL OPERATORS
 GENERAL SYNTAX:
 EXAMPLE:

35. SPATIAL OPERATORS

36. SDO_WITHIN_DISTANCE
Operator
 Concept:
 Syntax:
 Example:

37. SDO_NN Operator
 Concept:
 Syntax:
 Example:

38. SDO_NN Operator (more
examples)

39. SDO_RELATE
 CONCEPT:
 SYNTAX:
 EXAMPLE:

40. SDO_RELATE
 CONCEPT:

41. SDO_RELATE
 CONCEPT:

42. SDO_RELATE
 Syntax:
 Example:

43. SDO_RELATE
 More Example:

44. Geometry Processing
Functions
 No Need For Spatial Index!
 more detailed analyses
 can appear in the SELECT list (as well as the WHERE
clause)
 GP Function:
 1-Buffering Function
 2- Relationship Function
 3- Geometry Combination Function
 4- Geometric Analysis Function
 5- Aggregate Function

45. Buffering Function
 Concept

46. Buffering Function
 Syntax:
 Example:

47. Relationship Analysis
Functions
 SDO_DISTANCE
 Concept:

48. Relationship Analysis
Functions
 SDO_DISTANCE
 Syntax:
 Example:

49. Relationship Analysis
Functions
 Relate
 Syntax

50. Relationship Analysis
Functions
 Relate Example:

51. Geometry Combination
Functions
 Concept

52. Geometry Combination
Functions
 Syntax:
 Examples:

53. Geometry Combination
Functions

54. Geometric Analysis
Functions
 Numeric
 Area
 Length
 Volume

55. Geometric Analysis
Functions
 Geometric
 MBR
 Convex Hall
 Centroid

56. Aggregate Functions
 AGGR_MBR
 AGGR_CONVEXHULL
 AGR_UNION

57. Aggregate Functions

58. REVIEW
 CREATE SPATIAL TABLE
 SDO_GEOMETRY (DML)
 CREATE SPATIAL INDEX
 INSERT SPATIAL METADATA
 SPATIAL OPERATORS
 SPATIAL FUNCTIONS

59. REFERENCE
 Pro Oracle Spatial for Oracle Database 11g
 Oracle® Spatial and Graph Developers’ Guide
(E49172-06)

60. THANKS 