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Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ 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 HCL OneDB™.
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 HCL OneDB™ databases.
DataBlade® API Function ReferenceThe HCL OneDB™ DataBlade® API Function Reference describes the DataBlade® API functions and the subset of functions that the DataBlade® API supports.
Function descriptionsThis section gives comprehensive reference information about the functions that are valid within DataBlade® API modules. It lists the function descriptions in alphabetical order, with syntax, usage information, and return values for the functions.
The mi_trigger_event() functionThe mi_trigger_event() function returns the trigger event information for the current trigger event.

The mi_trigger_event() function

The mi_trigger_event() function returns the trigger event information for the current trigger event.

Syntax

    mi_integer mi_trigger_event(void)


Valid in client LIBMI application?	Valid in user-defined routine?
No	Yes

Usage

The mi_trigger_event() function returns the value derived from an OR operation from the following events. These values are defined in the public header file. Each bit set in the returned value indicates the type of the trigger currently executing. The returned value is combined with these values to determine the current event. This function can be called in SPL trigger functions and trigger procedures only within the triggered action list of the FOR EACH ROW clause in trigger definitions.

Return values

MI_ERROR: The function was not successful
MI_TRIGGER_NOT_IN_EVENT: The UDR is not currently executing.
MI_TRIGGER_INSERT_EVENT: An INSERT trigger event.
MI_TRIGGER_DELETE_EVENT: A DELETE trigger event.
MI_TRIGGER_UPDATE_EVENT: An UPDATE trigger event.
MI_TRIGGER_SELECT_EVENT: A SELECT trigger event.
MI_TRIGGER_BEFORE_EVENT: A BEFORE trigger event.
MI_TRIGGER_AFTER_EVENT: An AFTER trigger event.
MI_TRIGGER_FOREACH_EVENT: A FOREACH trigger event.
MI_TRIGGER_INSTEAD_EVENT: An INSTEAD OF trigger event. (INSERT,DELETE,UPDATE operations through view)
MI_TRIGGER_REMOTE_EVENT: A remote trigger event.