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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®.
Database access
XA-compliant external data sources
Create and drop XA data sources and data source typesThis section contains information about creating and dropping XA-compliant data source types and instances of XA-compliant data sources.
Create an XA data source

Create an XA data source

To create an XA data source, use the CREATE XADATASOURCE statement, as follows:

CREATE XADATASOURCE datasourcename USING datasourcetypename;

The datasourcename and datasourcetypename optionally include the owner name separated from the data source type name by a period.

For example:

CREATE XADATASOURCE informix.NewYork USING informix.MQSeries;

ANSI database and non-ANSI database namespace rules apply for the XA data source type, XA data source names, and user-defined function names.

Each new XA data source will have a unique ID in the sysxadatasources system catalog table.

For syntax details, see the Informix® Guide to SQL: Syntax.

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