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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_server_connect() functionThe mi_server_connect() function establishes a connection between a client LIBMI application and a database server.

The mi_server_connect() function

The mi_server_connect() function establishes a connection between a client LIBMI application and a database server.

Syntax

MI_CONNECTION *mi_server_connect(conn_info)
   MI_CONNECTION_INFO *conn_info;

conn_info: A pointer to a connection-information descriptor that identifies a database server.


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

Usage

The mi_server_connect() function establishes a client connection that connects the client LIBMI application to the database server identified by the connection-information structure that conn_info references. The establishment of a client connection begins a session. The mi_server_connect() function obtains a connection descriptor for the client connection. This function is a constructor function for a connection descriptor. The new connection descriptor is valid until the end of the session.

Use this function for client LIBMI applications that run against different database servers.

The mi_server_connect() function also initializes the DataBlade® API when it is the first DataBlade API function in a client LIBMI application.

For a description of the connection-information descriptor or general information about how to establish a session with mi_server_connect(), see the HCL OneDB™ DataBlade API Programmer's Guide.

Return values

An MI_CONNECTION pointer: A pointer to the connection descriptor for the newly established connection.
NULL: The function was not successful.