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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 GuideThe 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™.
Extend an operator class
Operator classes
Secondary-access methods
Other user-defined secondary-access methods

Other user-defined secondary-access methods

A DataBlade® module can provide a UDT to handle a particular type of data. The module might also provide a new secondary-access method (index) for the new data type that it defines. For more information about the types of data and functions that each DataBlade module provides, refer to the user guide for the DataBlade module. The sysams system catalog table describes the secondary-access methods that exist in your database. For information about sysams, see the HCL OneDB™ Guide to SQL: Reference.

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