Function SQLExecDirect 

pub unsafe extern "system" fn SQLExecDirect(
    statement_handle: HStmt,
    statement_text: *const Char,
    text_length: Integer,
) -> SqlReturn

Executes a preparable statement, using the current values of the parameter marker variables if any parameters exist in the statement. This is the fastest way to submit an SQL statement for one-time execution

Returns

SUCCESS, SUCCESS_WITH_INFO, SQL_NEED_DATA, SQL_STILL_EXECUTING, ERROR , SQL_NO_DATA, INVALID_HANDLE, or SQL_PARAM_DATA_AVAILABLE.