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ST_MPointFromWKB

ST_MPointFromWKB´Â ´ÙÁßÁ¡ À¯ÇüÀÇ Àß ¾Ë·ÁÁø 2Áø Ç¥Çö½Ä ¹× °ø°£ ÂüÁ¶ ½Ã½ºÅÛ ½Äº°ÀÚ¸¦ ÃëÇØ ´ÙÁßÁ¡À» ¸®ÅÏÇÕ´Ï´Ù.

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db2gse.ST_MPointFromWKB(WKBMultiPoint Blob(1M), SRID db2gse.coordref)

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db2gse.ST_MultiPoint

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´ÙÀ½ÀÇ ÄÚµå Á¶°¢Àº SPECIES_SITINGS Å×À̺íÀ» »óÁÖ½Ãŵ´Ï´Ù.

SPECIES_SITINGS Å×À̺íÀº ¼¼ °³ÀÇ Ä÷³À¸·Î ÀÛ¼ºµË´Ï´Ù. SPECIES ¹× GENUS Ä÷³ÀÌ °¢ ÇàÀ» °íÀ¯ÇÏ°Ô ³ªÅ¸³»°í SITINGS ´ÙÁßÁ¡ Ä÷³Àº Á¾ ±¸È¹(species sitings)ÀÇ À§Ä¡¸¦ ÀúÀåÇÕ´Ï´Ù.

CREATE TABLE SPECIES_SITINGS (species  varchar(32),
                              genus varchar(32),
                              sitings  db2gse.ST_MultiPoint);
 
/* species, genus ¹× sitingÀ» »óÁÖ½Ã۱â À§ÇÑ SQL insert¹®À»
   ÀÛ¼ºÇÕ´Ï´Ù. ¹°À½Ç¥´Â ¸Å°³º¯¼ö Ç¥½Ã¹®ÀÚÀ̸ç, ÀÌ´Â
   ·±Å¸ÀÓ¿¡ °Ë»öµÇ´Â species, genus ¹× sitings °ªÀ»
   ÁöÁ¤ÇÕ´Ï´Ù. */
strcpy (wkb_sql,"insert into SPECIES_SITINGS (species,genus,sitings)
values (?,?, db2gse.ST_MPointFromWKB (cast(? as blob(1m)),
db2gse.coordref()..srid(0)))");
 
/* SQL¹® Çڵ鿡 ´ëÇÑ ¸Þ¸ð¸®¸¦ ÇÒ´çÇϰí, ¸í·É¹® ÇÚµéÀ»
   ¿¬°á ÇÚµé°ú °áÇÕÇÕ´Ï´Ù. */
rc = SQLAllocStmt (handle, &hstmt);
 
/* ½ÇÇàÇÒ SQL¹®À» ÁغñÇÕ´Ï´Ù. */
rc = SQLPrepare (hstmt, (unsigned char *)wkb_sql, SQL_NTS);
 
/* varchar species °ªÀ» ù¹øÂ° ¸Å°³º¯¼ö¿¡ ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue1 = species_len;
rc = SQLBindParameter (hstmt, 1, SQL_PARAM_INPUT, SQL_C_CHAR,
   SQL_CHAR, species_len, 0, &species, species_len, &pcbvalue1);
/* varchar genus °ªÀ» µÎ ¹øÂ° ¸Å°³º¯¼ö¿¡ ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue2 = genus_len;
rc = SQLBindParameter (hstmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR,
   SQL_CHAR, genus_len, 0, &name, genus_len, &pcbvalue2);
 
/* ¸ð¾çÀ» ¼¼ ¹øÂ° ¸Å°³º¯¼ö·Î ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue3 = sitings_len;
rc = SQLBindParameter (hstmt, 3, SQL_PARAM_INPUT, SQL_C_BINARY,
     SQL_BLOB, sitings_len, 0, sitings_wkb, sitings_len, &pcbvalue3);
 
/* »ðÀÔ¹®À» ½ÇÇàÇÕ´Ï´Ù. */
rc = SQLExecute (hstmt);


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