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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
Date and time data typesThis section describes the date and time data types and the functions that the DataBlade® API supports to process date and time data.
Date-time or interval dataThe DataBlade® API provides support for date-time or interval data in both text and binary representations.
Date-time or interval binary representationThe DataBlade® API supports SQL data types that can hold information about date-time or interval values.

Date-time or interval binary representation

The DataBlade® API supports SQL data types that can hold information about date-time or interval values.

Table 1. DataBlade API and SQL date and time data types
DataBlade API date and time data type	SQL date and time data type
mi_datetime	DATETIME
mi_interval	INTERVAL

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