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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™.
Creating extensionsYou can create user-defined data types, routines, access methods, and other database objects to suit your needs. You can use application programming interfaces to write user-defined routines and applications that access data in HCL OneDB™ databases.
User-Defined Routines and Data Types Developer's GuideThese topics describe how to define new data types and enable user-defined routines (UDRs) to extend HCL OneDB™.The HCL OneDB™ User-Defined Routines and Data Types Developer's Guide describes how to define new data types and enable user-defined routines (UDRs) to extend HCL OneDB™.

User-Defined Routines and Data Types Developer's Guide

These topics describe how to define new data types and enable user-defined routines (UDRs) to extend HCL OneDB™.The HCL OneDB User-Defined Routines and Data Types Developer's Guide describes how to define new data types and enable user-defined routines (UDRs) to extend HCL OneDB.

It describes the tasks you must perform to extend operations on data types, to create new casts, to extend operator classes for secondary-access methods, to write opaque data types, and to create and register routines.

These topics are written for the following users:

Database-application programmers
DataBlade® module developers

These topics assume that you have the following background:

A working knowledge of your computer, your operating system, and the utilities that your operating system provides
Experience working with relational databases or exposure to database concepts
Experience with computer programming