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Extending Informix®Beyond standard relational database objects, HCL Informix® can be extended to handle specialized data types, access methods, routines, and other objects. Informix® includes many built-in extensions that are fully integrated in the database server. Informix® 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 Informix®.
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 Informix® 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 Informix® databases.
DataBlade® Developers Kit User's GuideThe HCL Informix® DataBlade® Developers Kit User's Guide describes how to use tools to develop and package DataBlade® modules.
Programming DataBlade® module routines in CThis section contains information to help you edit and compile C language source code generated by DataBlade®.
Generated code
Tracing and error handlingBladeSmith adds tracing and error handling code throughout the generated source code if the tracing option is set to True when you generate source code in BladeSmith.
Enabling tracing in a database sessionAfter you enable tracing in your DataBlade® module, enable tracing for the database session. By default, when you start a database server session, tracing is disabled.

Enabling tracing in a database session

After you enable tracing in your DataBlade® module, enable tracing for the database session. By default, when you start a database server session, tracing is disabled.

About this task

To enable tracing in your database session:

Procedure

Set the appropriate locale environment variables.
Register tracing routines in the database with the EnableTracing.sh shell script.
Set the trace output file and the trace threshold for the current session.

Results

These steps are described in the following sections.

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