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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
Access SQL data typesThis section provides an overview of the data types that the DataBlade® API supports.
Character data types
Character processingThe DataBlade® API library provides the transfer, conversion, and operation functions to process character data.

Character processing

The DataBlade® API library provides the transfer, conversion, and operation functions to process character data.

For , you can use these character-processing functions on NCHAR and NVARCHAR data. You can also use the character processing that the interface provides to handle multibyte characters.

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