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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®.
AppendixThis section contains additional reference information.
Write a client LIBMI application
Handling transactions

Handling transactions

For databases that use logging, a client LIBMI application specifies the start and end of each transaction. For these databases, an SQL statement is always part of a transaction. The type of transaction that the SQL statement is part of is based on the type of database and whether it uses transaction logging, as Types of transactions shows.

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