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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
Storing a smart large object in a databaseTo store a smart large object in a database, you must save its LO handle in a column. This section describes the valid data types to hold an LO handle and how to access a smart large object.
Access to a smart large objectThe DataBlade® API provides the smart-large-object interface for access to smart large objects. This interface contains a set of functions and data types to provide access to smart large objects.

Access to a smart large object

The DataBlade® API provides the smart-large-object interface for access to smart large objects. This interface contains a set of functions and data types to provide access to smart large objects.

The smart-large-object interface provides access to the smart large object through its LO handle, as follows:

After you select a column that contains an LO handle, you can use this handle to access the smart-large-object data in an sbspace.
To store a new smart large object, you create a new LO handle, write the data to the sbspace, and store the LO handle in the column.

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