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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®.
Data manipulation
Smart large objects
The smart-large-object interfaceThe smart-large-object interface contains a set of functions and data types to provide access to smart large objects.
Smart-large-object functions
Functions that move smart large objects to and from operating-system files

Functions that move smart large objects to and from operating-system files

The following table shows the smart-large-object functions that move smart large objects to and from operating-system files.


DataBlade® API Function	Purpose
mi_file_to_file()	Copies the contents of one operating-system file to another
mi_lo_from_file()	Copies the contents of an operating-system file to a new smart large object
mi_lo_from_file_by_lofd()	Copies the contents of an operating-system file to an existing smart large object
mi_lo_to_file()	Copies the contents of a smart large object to a new operating-system file

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