Home
Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
HCL OneDB™ extensions and DataBlade® modulesThese topics describe how to use built-in database extensions and separately installed DataBlade® modules.
Spatial Data User's GuideThe HCL OneDB™ Spatial Data User's Guide contains information to assist you in using the HCL® OneDB® spatial extension. The HCL® OneDB® spatial extension adds custom data types and supporting routines to the server.
Appendixes
ESRI shape representation
Measured shape types in XY space
PointM

PointM

A PointM consists of a pair of double-precision coordinates in the order X, Y, plus a measure M. The following table shows PointM byte stream contents.


Position	Field	Value	Type	Number	Byte order
Byte 0	Shape Type	21	Integer	1	Little endian
Byte 4	X	X	Double	1	Little endian
Byte 12	Y	Y	Double	1	Little endian
Byte 20	M	M	Double	1	Little endian

Have feedback?
Google Analytics is used to store comments and ratings. To provide a comment or rating for a topic, click Accept All Cookies or Allow All in Cookie Preferences in the footer of this page.