13 MultiPolygon Class The set of geometry types proposed by OGC's SQL with Geometry Types environment is based on the OpenGIS Geometry Model. In this model, each geometric object has the...
Additional Resources These standards are important for the MySQL implementation of spatial operations: SQL/MM Part 3: Spatial. The Open Geospatial Consortium publishes the OpenGIS...
OpenGIS proposes a number of functions that can produce geometries. They are designed to... MySQL also implements certain functions that are extensions to OpenGIS, as noted in the function...
MySQL 8.0 has many new GIS features, including a catalog of spatial reference systems (SRSs) and support for geographic (latitude-longitude) computations. In a Cartesian SRS, it doesn’t really matter which coordinate is on which axis. The axes are orthogonal and the units are the same on both axes, so if a user consistently puts the X value in the Y coordinate and the Y value in the X coordinate, it doesn’t affect computations (in the functions MySQL currently supports). It’s very differen...
MySQL has spatial data types that correspond to OpenGIS classes. The basis for these types is described in Section 13.4.2, “The OpenGIS Geometry Model”. Some spatial data types hold...
both OpenGIS 'GEOMETRYCOLLECTION EMPTY' standard syntax and MySQL 'GEOMETRYCOLLECTION()' nonstandard syntax. Functions such as ST_AsWKT() that produce WKT values produce 'GEOMETRYCOLLECTION...
(모든 표준 SQL 숫자 유형 등) - 부호 있는/부호 없는 정수 1, 2, 3, 4, 8바이트 길이, FLOAT, DOUBLE, CHAR, VARCHAR, BINARY, VARBINARY, TEXT, BLOB, DATE, TIME, DATETIME, , , 및 OpenGIS 공간 유형 2.2 명령문 및 함수 mysql> SELECT...
h" 37 38 #include "my_inttypes.h" 39 #include "mysql/components/services/bits/psi_bits.h" 40 #include "mysql/service_mysql_alloc.h" 41 #include "sql/gis/srid.h" 42 #include "sql/inplace...
이 섹션에서는 MySQL 데이터베이스 소프트웨어의 몇 가지 중요한 특성에 대해 설명합니다. 대부분의 측면에서 로드맵은 모든 버전의 MySQL에 적용됩니다. 시리즈별로 MySQL에 도입 된 기능에 대한 자세한 내용은 해당 매뉴얼 의 " 요약 " 섹션을 참조하십시오 . MySQL 8.0 : MySQL 8.0의 새로운 기능 MySQL 5.7 : 1.3 절...
용어 설명 OGC(Open Geospatial Consortium) : 위치 기반 데이터 표준 수립 단체 OpenGIS : 지리 정보 시스템(GIS)의 표준 SRS , GCS , PCS : SRS 는 좌표계 로, GCS와 PCS로 나뉠 수 있는데 GCS 는...