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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® API Programmer's GuideThe Informix® DataBlade® API Programmer's Guide describes information about the DataBlade® API, the C-language application programming interface (API) provided with HCL Informix®.
AppendixThis section contains additional reference information.
Write a client LIBMI application

Write a client LIBMI application

This section outlines the following implementation issues for writing a client LIBMI application:

How to manage memory with DataBlade® API memory-management functions
How to access operating-system files

Server only: This section covers topics specific to the creation of a client LIBMI application. This material does not necessarily apply to the creation of C user-defined routines (UDRs). For information specific to the creation of C UDRs, see Write a user-defined routine.

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