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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®.
DataBlade® API overview
The DataBlade® APIThe HCL Informix® DataBlade® API is the application programming interface (API) for HCL Informix®. You can use DataBlade® API functions in DataBlade® modules to access data stored in the Informix® database.
DataBlade® API componentsThe DataBlade® API contains the header files, public data type structures, and pubic functions for the development of DataBlade® API modules.
Public data types

Public data types

The DataBlade® API provides support for the following public data types:

DataBlade API data types, which provide support for standard C, Informix® ESQL/C, and SQL data types
DataBlade API support data types, which provide support for functions of the DataBlade API
DataBlade API data type structures, which provide access to information that functions of the DataBlade API use

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