»ç¿ëÀÚ ¾È³» ¹× ÂüÁ¶¼­

ST_CoordDim

ST_CoordDimÀº ST_Geometry °ªÀÇ ÁÂÇ¥ Â÷¿øÀ» ¸®ÅÏÇÕ´Ï´Ù. ÁÂÇ¥ Â÷¿ø¿¡ ´ëÇÑ ¼³¸íÀº Á¡À» ÂüÁ¶ÇϽʽÿÀ.

±¸¹®

db2gse.ST_CoordDim(g1 db2gse.ST_Geometry)

¸®ÅÏ À¯Çü

Integer

¿¹

coorddim_test Å×À̺íÀº Ä÷³ geotype ¹× g1À¸·Î ÀÛ¼ºµË´Ï´Ù. geotype Ä÷³Àº g1 ±âÇÏÇÐ Ä÷³¿¡ ÀúÀåµÈ ±âÇÏÇÐ ¼­ºêŬ·¡½ºÀÇ À̸§À» ÀúÀåÇÕ´Ï´Ù.

CREATE TABLE coorddim_test (geotype varchar(20), g1 db2gse.ST_Geometry)

INSERT¹®Àº coorddim_test Å×ÀÌºí¿¡ »ùÇà ¼­ºêŬ·¡½º¸¦ »ðÀÔÇÕ´Ï´Ù.

INSERT INTO coorddim_test VALUES( 
    'Point', db2gse.ST_PointFromText('point (10.02 20.01)', 
db2gse.coordref()..srid(0))
)
INSERT INTO coorddim_test VALUES( 
'Linestring', 
db2gse.ST_LineFromText('linestring (10.02 20.01,10.32 23.98,11.92 25.64)', 
db2gse.coordref()..srid(0))
)
INSERT INTO coorddim_test VALUES(
'Polygon', db2gse.ST_PolyFromText('polygon ((10.02 20.01,11.92 35.64,
25.02 34.15, 19.15 33.94,10.02 20.01))', db2gse.coordref()..srid(0))
)
INSERT INTO coorddim_test VALUES( 
'Multipoint', db2gse.ST_MPointFromText('multipoint (10.02 20.01,10.32 23.98,
11.92 25.64)', db2gse.coordref()..srid(0))
)
INSERT INTO coorddim_test VALUES( 
'Multilinestring', db2gse.ST_MLineFromText('multilinestring ((10.02 20.01,
10.32 23.98,11.92 25.64),(9.55 23.75,15.36 30.11))', db2gse.coordref()..srid(0)) 
)
INSERT INTO coorddim_test VALUES( 
'Multipolygon', 
MPolyFromText('multipolygon (((10.02 20.01,11.92 35.64,25.02 34.15,
19.15 33.94,10.02 20.01)),((51.71 21.73,73.36 27.04,71.52 32.87,
52.43 31.90,51.71 21.73)))', db2gse.coordref()..srid(0)) 
)

SELECT¹®Àº ÇØ´ç geotypeÀÇ ÁÂÇ¥ Â÷¿øÀ¸·Î geotype Ä÷³¿¡ ÀúÀåµÈ ¼­ºêŬ·¡½º À̸§À» ³ª¿­ÇÕ´Ï´Ù.

SELECT geotype, db2gse.ST_coordDim(g1)' coordinate_dimension' 
FROM coorddim_test
GEOTYPE              coordinate_dimension
-------------------- --------------------------
ST_Point                                 2
ST_Linestring                            2
ST_Polygon                               2
ST_Multipoint                            2
ST_Multilinestring                       2
ST_Multipolygon                          2
  6 record(s) selected.


[ ÆäÀÌÁöÀÇ ¸Ç À§ | ÀÌÀü ÆäÀÌÁö | ´ÙÀ½ ÆäÀÌÁö | ¸ñÂ÷ | »öÀÎ ]