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# lrd_open_connection

Connects (logs in) to the database.

    LRDRET lrd_open_connection( LRD_CONNECTION **mpptConnection, unsigned int muiDBType, char *mpszUser, char *mpszPassword, char *mpszServer, char *mpszExtConnectStr, LRD_CONTEXT *mptContext, long mliOption, int miDBErrorSeverity );

mpptConnection | A pointer to a pointer to an LRD_CONNECTION structure.
muiDBType | The target database type.
mpszUser | A pointer to the database user ID.
mpszPassword | A pointer to the database user password.
mpszServer | A pointer to the database server name.
mpszExtConnectStr | A pointer to an extended connection string.
mptContext | A pointer to an LRD_CONTEXT structure. NULL for all other databases.
mliOption | ODBC only - One of the Open Connection options.
miDBErrorSeverity | The Error Severity Levels of a failure in a database routine.

The lrd_open_connection function sets up the LRD_CONNECTION structure. The structure is valid until it is freed with lrd_close_connection.

For more details refer to the Function Header File lrd.h in the include directory.

## Return Values

See LRD Return Values.

## Parameterization

The following arguments can be parameterized using standard parameterization: mpszUser, mpszPassword, mpszServer, mpszExtConnectStr

## Example

In the following example, the lrd_open_connection function opens a connection to a Oracle database after initializing the environment with lrd_init (in the vuser_init section).

    lrd_open_connection(&Con1, LRD_DBTYPE_ORACLE, "bb", "lion", "hammer", "", 0, 0, 0);

    lrd_open_cursor(&Csr1, Con1, 0);

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