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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.
Debugging and testing DataBlade® modules on UNIX™This section describes how to debug and perform functional tests for DataBlade® modules written in C for HCL OneDB™ on UNIX™.
Prepare your environment on UNIX™Test and debug your DataBlade® module in a nonproduction HCL OneDB™ database server environment because debugging interferes with the operation of the database server.

Prepare your environment on UNIX

Test and debug your DataBlade® module in a nonproduction HCL OneDB™ database server environment because debugging interferes with the operation of the database server.

To successfully test and debug your DataBlade module, set your environment so you can access your HCL OneDB database server installation and build your DataBlade module shared object.

To run your HCL OneDB database server, check that these environment variables are set properly: INFORMIXDIR, PATH, LD_LIBRARY_PATH, ONCONFIG, and INFORMIXSERVER. See the HCL OneDB Administrator's Guide for more information about configuring your HCL OneDB database server.

When testing your DataBlade module, set the TESTDB environment variable to the name of your test database.

To recompile your DataBlade module shared object file during debugging, also set the TARGET environment variable. See Compiling on a UNIX operating system for more information about the TARGET environment variable.