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ST_PolyFromWKB

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

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db2gse.ST_PolyFromWKB(WKBPolygon Blob(1M), SRID db2gse.coordref)

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db2gse.ST_Polygon

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

SENSITIVE_AREAS Å×ÀÌºí¿¡´Â °ø°øºôµùÀÇ ´Ù°¢Çü ±âÇÏÇÐÀ» ÀúÀåÇÏ´Â zone Ä÷³¿Ü¿¡µµ À§ÇùÀûÀÎ °ø°øºôµùÀ» ¼­¼úÇÏ´Â ¿©·¯ Ä÷³µéÀÌ µé¾î ÀÖ½À´Ï´Ù.

CREATE TABLE SENSITIVE_AREAS (id        integer,
                              name      varchar(128),
                              size      float,
                              type      varchar(10),
                              zone      db2gse.ST_Polygon);
 
 
/* id, name, size, type ¹× zoneÀ» »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 id, name,
   size, type ¹× zone °ªÀ» ÁöÁ¤ÇÕ´Ï´Ù. */
strcpy (shp_wkb,"insert into SENSITIVE_AREAS (id, name, size, type, zone)
values (?,?,?,?, db2gse.ST_PolyFromWKB (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);
 
/* ID Á¤¼ö °ªÀ» ù¹øÂ° ¸Å°³º¯¼ö¿¡ ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue1 = 0;
rc = SQLBindParameter (hstmt, 1, SQL_PARAM_INPUT, SQL_C_INTEGER,
   SQL_INTEGER, 0, 0, &id, 0, &pcbvalue1);
 
/* name varchar °ªÀ» µÎ ¹øÂ° ¸Å°³º¯¼ö¿¡ ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue2 = name_len;
rc = SQLBindParameter (hstmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR,
     SQL_CHAR, 0, 0, name, 0, &pcbvalue2);
 
/* size float¸¦ ¼¼ ¹øÂ° ¸Å°³º¯¼ö·Î ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue3 = 0;
rc = SQLBindParameter (hstmt, 3, SQL_PARAM_INPUT, SQL_C_FLOAT,
     SQL_REAL, 0, 0, &size, 0, &pcbvalue3);
 
/* type varcharÀ» ³× ¹øÂ° ¸Å°³º¯¼ö¿¡ ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue4 = type_len;
rc = SQLBindParameter (hstmt, 3, SQL_PARAM_INPUT, SQL_C_CHAR,
     SQL_VARCHAR, type_len, 0, type, type_len, &pcbvalue4);
 
/* zone ´Ù°¢ÇüÀ» ´Ù¼¸¹øÂ° ¸Å°³º¯¼ö¿¡ ¹ÙÀεåÇÕ´Ï´Ù. */
pcbvalue5 = zone_len;
rc = SQLBindParameter (hstmt, 3, SQL_PARAM_INPUT, SQL_C_BINARY,
     SQL_BLOB, zone_len, 0, zone_wkb, zone_len, &pcbvalue5);
 
/* »ðÀÔ¹®À» ½ÇÇàÇÕ´Ï´Ù. */
rc = SQLExecute (hstmt);


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