AsShapeÀº ±âÇÏ ¿ÀºêÁ§Æ®¸¦ ÃëÇϰí BLOBÀ» ¸®ÅÏÇÕ´Ï´Ù.
±¸¹®
db2gse.AsShape(g db2gse.ST_Geometry)
¸®ÅÏ À¯Çü
BLOB(1m)
¿¹
´ÙÀ½ÀÇ ÄÚµå Á¶°¢Àº AsShape ÇÔ¼ö°¡ SENSITIVE_AREAS Å×À̺íÀÇ ¿µ¿ª ´Ù°¢ÇüÀ» ¸ð¾ç ´Ù°¢ÇüÀ¸·Î º¯È¯ÇÏ´Â ¹æ¹ýÀ» ¿¹½ÃÇÕ´Ï´Ù. ÀÌ ¸ð¾ç ´Ù°¢ÇüÀº ȸéÇ¥½Ã¿ë ÀÀ¿ëÇÁ·Î±×·¥ÀÇ draw_polygon ÇÔ¼ö¿¡ Àü´ÞµË´Ï´Ù.
/* Create the SQL expression. */ strcpy(sqlstmt, "select db2gse.AsShape (zone) from SENSITIVE_AREAS where db2gse.EnvelopesIntersect(zone, db2gse.PolyFromShape(cast(? as blob(1m)), db2gse.coordref()..srid(0)))"); /* Prepare the SQL statement. */ SQLPrepare(hstmt, (UCHAR *)sqlstmt, SQL_NTS); /* Set the pcbvalue1 length of the shape. */ pcbvalue1 = blob_len; /* Bind the shape parameter */ SQLBindParameter (hstmt, 1, SQL_PARAM_INPUT, SQL_C_BINARY, SQL_BLOB, blob_len, 0, shape, blob_len, &pcbvalue1); /* Execute the query */ rc = SQLExecute(hstmt); /* Assign the results of the query (the Zone polygons) to the fetched_binary variable. */ SQLBindCol (hstmt, 1, SQL_C_Binary, fetched_binary, 100000, &ind_blob); /* Fetch each polygon within the display window and display it. */ while(SQL_SUCCESS == (rc = SQLFetch(hstmt))) draw_polygon(fetched_binary);