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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
Execute SQL statementsOne basic task of a DataBlade® API module is to send SQL statements to the database server for execution.
Complete executionThe DataBlade® API provides functions to complete execution of the current statement.
Interrupt executionThe mi_query_interrupt() function interrupts execution of the current statement on a connection. It releases resources that an mi_exec() function implicitly allocates without processing any remaining rows in a query. To release resources, mi_query_interrupt() has the same behavior as mi_query_finish().

Interrupt execution

The mi_query_interrupt() function interrupts execution of the current statement on a connection. It releases resources that an mi_exec() function implicitly allocates without processing any remaining rows in a query. To release resources, mi_query_interrupt() has the same behavior as mi_query_finish().

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