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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® Developers KitThe DataBlade® Developers Kit (DBDK) guides contain information about the tools you can use to develop and package DataBlade® modules, which extend the functionality of HCL Informix® databases.
DBDK InfoShelfThe DataBlade® Developers Kit InfoShelf is designed to help you work with BladeSmith.
DataBlade® Developers Kit TutorialThe Tutorial is a set of exercises that demonstrate how to create extensions to HCL Informix® and package them as DataBlade® modules by using DBDK. Support for DataBlade Developers Kit (DBDK) is removed starting Informix Server 14.10.xC6.
Tutorial exercise 3: Creating row data typesThis exercise demonstrates how to create row data types and user-defined routines that operate on them. This exercise consists of 11 steps. It takes approximately one hour to complete.
Creating the rciCircle data type

Creating the rciCircle data type

About this task

To create the rciCircle data type:

Procedure

Choose Edit > Insert > Row Type and type the following information in the New Row Type wizard.


Row type property	Value
Row type name	rciCircle
Inheritance	No parent row type
Columns	Name: center, type: rciPoint, cannot be NULL Name: radius, type: double precision, cannot be NULL
Object grant privileges	Grant usage privileges

Click Finish and then choose Project > Save to save your project.

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