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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.
DataBlade® Developers KitThe DataBlade® Developers Kit (DBDK) guides contain information about the tools you can use to develop and package DataBlade® modules, which extend the functionality of HCL OneDB™ databases.
DataBlade® Developers Kit User's GuideThe HCL OneDB™ DataBlade® Developers Kit Users Guide describes how to use OneDB® DataBlade® Developers Kit (DBDK) tools to develop and package DataBlade® modules.
Create DataBlade® objects by using BladeSmithUse BladeSmith to create DataBlade® modules.
Create DataBlade® module objectsBladeSmith uses wizards to create and edit objects.
Define errorsDataBlade® module routines can print error messages and trace messages. Error messages are printed with the mi_db_error_raise() function. Trace messages are written to a trace file with the DBDK_TRACE macros or the gl_dprintf() macro.
SQL error codeTo ensure that your error codes do not conflict with built-in error codes and those error codes of other DataBlade® modules, consider qualifying the code with a three-character DataBlade® module prefix such as USR.

SQL error code

To ensure that your error codes do not conflict with built-in error codes and those error codes of other DataBlade® modules, consider qualifying the code with a three-character DataBlade module prefix such as USR.