IBM® Informix® 12.10
ST_Point data type
The ST_Point data type is a zero-dimensional geometry that occupies a single location in coordinate space. ST_Point is used to define features such as oil wells, landmarks, and elevations.
Properties
An ST_Point has a single X,Y coordinate value, is always simple, and has a NULL boundary. An ST_Point may include a Z coordinate and an M value.
Functions
The following functions operate
solely on the ST_Point data type:
- ST_X()
- The function returns a point data type's X coordinate value as a double-precision number.
- ST_Y()
- The function returns a point data type's Y coordinate value as a double-precision number.
- SE_Z()
- The function returns a point data type's Z coordinate value as a double-precision number.
- SE_M()
- The function returns a point data type's M coordinate value as a double-precision number.