Difference between revisions of "Příkazy k vytvoření cola markets"

Revision as of 08:15, 15 April 2010

Převzato a poskládáno ze stránek fy Oracle:

Stránka k prostorovým operacím: [1]

CREATE TABLE cola_markets (

 mkt_id NUMBER PRIMARY KEY,
 name VARCHAR2(32),
 shape SDO_GEOMETRY);

INSERT INTO cola_markets VALUES(

 1,
 'cola_a',
 SDO_GEOMETRY(
   2003,  -- two-dimensional polygon
   NULL,
   NULL,
   SDO_ELEM_INFO_ARRAY(1,1003,3), -- one rectangle (1003 = exterior)
   SDO_ORDINATE_ARRAY(1,1, 5,7) -- only 2 points needed to
  )

);

INSERT INTO cola_markets VALUES(

 2,
 'cola_b',
 SDO_GEOMETRY(
   2003,  -- two-dimensional polygon
   NULL,
   NULL,
   SDO_ELEM_INFO_ARRAY(1,1003,1), -- one polygon (exterior polygon ring)
   SDO_ORDINATE_ARRAY(5,1, 8,1, 8,6, 5,7, 5,1)
 )

);

INSERT INTO cola_markets VALUES(

 3,
 'cola_c',
 SDO_GEOMETRY(
   2003,  -- two-dimensional polygon
   NULL,
   NULL,
   SDO_ELEM_INFO_ARRAY(1,1003,1), -- one polygon (exterior polygon ring)
   SDO_ORDINATE_ARRAY(3,3, 6,3, 6,5, 4,5, 3,3)
 )

);

INSERT INTO cola_markets VALUES(

 4,
 'cola_d',
 SDO_GEOMETRY(
   2003,  -- two-dimensional polygon
   NULL,
   NULL,
   SDO_ELEM_INFO_ARRAY(1,1003,4), -- one circle
   SDO_ORDINATE_ARRAY(8,7, 10,9, 8,11)
 )

);

Vyvoření gridu před vytvořením spatial indexu.

INSERT INTO user_sdo_geom_metadata

   (TABLE_NAME,
    COLUMN_NAME,
    DIMINFO,
    SRID)
 VALUES (
 'cola_markets',
 'shape',
 SDO_DIM_ARRAY(   -- 20X20 grid
   SDO_DIM_ELEMENT('X', 0, 20, 0.005),
   SDO_DIM_ELEMENT('Y', 0, 20, 0.005)
    ),
 NULL   -- SRID

);

describe user_sdo_geom_metadata;

CREATE INDEX cola_spatial_idx

  ON cola_markets(shape)
  INDEXTYPE IS MDSYS.SPATIAL_INDEX;

Operace nad prostorovými daty:

SELECT SDO_GEOM.SDO_INTERSECTION(c_a.shape, c_c.shape, 0.005)

  FROM cola_markets c_a, cola_markets c_c 
  WHERE c_a.name = 'cola_a' AND c_c.name = 'cola_b';
  

SELECT SDO_GEOM.RELATE(c_b.shape, 'anyinteract', c_d.shape, 0.005)

 FROM cola_markets c_b, cola_markets c_d
 WHERE c_b.name = 'cola_a' AND c_d.name = 'cola_c';
 

SELECT name, SDO_GEOM.SDO_AREA(shape, 0.005) FROM cola_markets;

SELECT c.name, SDO_GEOM.SDO_AREA(c.shape, 0.005) FROM cola_markets c

  WHERE c.name = 'cola_a';

SELECT SDO_GEOM.SDO_DISTANCE(c_b.shape, c_d.shape, 0.005)

  FROM cola_markets c_b, cola_markets c_d
  WHERE c_b.name = 'cola_b' AND c_d.name = 'cola_c';

SELECT c.name, SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(c.shape, 0.005)

  FROM cola_markets c WHERE c.name = 'cola_c';

Nová tabulka pro uchování výsledků:

CREATE TABLE val_results (sdo_rowid ROWID, result VARCHAR2(2000));

CALL SDO_GEOM.VALIDATE_LAYER_WITH_CONTEXT('COLA_MARKETS', 'SHAPE',

 'VAL_RESULTS', 2);
 

SELECT * from val_results;

Použití metod objektu SDO_GEOMETRY:

SELECT c.shape.Get_WKT()

 FROM cola_markets c WHERE c.name = 'cola_b';
 

SELECT c.shape.Get_Dims()

 FROM cola_markets c WHERE c.name = 'cola_b';
 

SELECT c.shape.Get_GType()

 FROM cola_markets c WHERE c.name = 'cola_b';
 

SELECT c.mkt_id, c.name

 FROM cola_markets c
 WHERE SDO_ANYINTERACT(c.shape,
           SDO_GEOMETRY(2003, NULL, NULL,
             SDO_ELEM_INFO_ARRAY(1,1003,3),
             SDO_ORDINATE_ARRAY(4,6, 8,8))
           ) = 'TRUE';

select SDO_GEOM.SDO_DISTANCE(sdo_point(1,1,1), sdo_point(1,1,1), 0.005) from cola_markets;

select SDO_GEOMETRY(

   2003,  -- two-dimensional polygon
   NULL,
   NULL,
   SDO_ELEM_INFO_ARRAY(1,1003,3), -- one rectangle (1003 = exterior)
   SDO_ORDINATE_ARRAY(1,1, 5,7) 
 ) from cola_markets;
 

select 'karel' from cola_markets;

select unique sdo_geom.sdo_distance(SDO_GEOMETRY(

    2001,
    NULL,
    SDO_POINT_TYPE(10, 20, NULL),
    NULL,
    NULL), SDO_GEOMETRY(
    2001,
    NULL,
    SDO_POINT_TYPE(0, 0, NULL),
    NULL,
    NULL), 0.5)
    from cola_markets;
    

INSERT INTO cola_markets VALUES(

  90,
  'point_only',
  SDO_GEOMETRY(
     2001,
     NULL,
     SDO_POINT_TYPE(12, 14, NULL),
     NULL,
     NULL));

INSERT INTO cola_markets VALUES(

  91,
  'point_only',
  SDO_GEOMETRY(
     2001,
     NULL,
     SDO_POINT_TYPE(4, 4, NULL),
     NULL,
     NULL));

INSERT INTO cola_markets VALUES(

  92,
  'point_only',
  SDO_GEOMETRY(
     2001,
     NULL,
     SDO_POINT_TYPE(12, 12, NULL),
     NULL,
     NULL));

INSERT INTO cola_markets VALUES(

 10,
 'polygon_with_hole',
 SDO_GEOMETRY(
   2003,  -- two-dimensional polygon
   NULL,
   NULL,
   SDO_ELEM_INFO_ARRAY(1,1003,1, 19,2003,1), -- polygon with hole
   SDO_ORDINATE_ARRAY(2,4, 4,3, 10,3, 13,5, 13,9, 11,13, 5,13, 2,11, 2,4,
       7,5, 7,10, 10,10, 10,5, 7,5)
 )

);