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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® Module Development OverviewThe HCL Informix® DataBlade® module overview serves as an overview of the HCL Informix® DataBlade® module development process.
DataBlade® module concepts
DataBlade® module components
ErrorsYou can define error or trace messages for your DataBlade® module.

Errors

You can define error or trace messages for your DataBlade® module.

An error or trace consists of a unique five-character code, a locale (for translation), and a message. If you are developing a DataBlade module as a commercial product, qualify its name with a three-character DataBlade module prefix such as "USR" to create unique error codes and other DataBlade module objects.

To globalize your error messages, define multiple messages by using the same error code, a different locale, and the message text for that locale. Which message the user sees is controlled by the value of the locale environment variables.

For more information, see the Informix® DataBlade Developers Kit User's Guide.

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