User-defined function that returns a specified ST_Geometry value.
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Argument … |
Specifies … |
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awkb |
a VARBYTE(64000) for the well-known binary (WKB) representation of the spatial type. The size of awkb cannot exceed 64000 bytes. When a WKB representation is larger than 64000 bytes, use the ST_Geometry constructor method (BLOB version). For details on WKB formats, see “Well-Known Binary Representation” on page 198. |
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asrid |
an INTEGER value for a spatial reference system identifier. If this argument is omitted, the spatial reference system identifier is set to 0. |
Returns an ST_Geometry value.
For best performance, use the ST_Geometry constructor method instead of this UDF.
CREATE TABLE varbyte_tab1 (a int, b VARBYTE (6000));
INSERT INTO varbyte_tab1 VALUES (1002, NEW ST_Geometry(
'Point(10 20 30)').ST_Asbinary());
INSERT INTO sample_shapes
SELECT a, SYSSPATIAL.ST_GeomFromWKB(b) FROM varbyte_tab1;
SELECT * FROM sample_shapes;