This function is used to get the attribute values of the given oid. attr_name is an array of the attributes, and it must end with NULL. If attr_name is NULL, the information of all attributes is fetched. The request handle has the same form as when the SQL statement "SELECT attr_name FROM oid_class WHERE oid_class = oid" is executed.
int cci_oid_get(int conn_handle, char *oid_str, char **attr_name, T_CCI_ERROR *err_buf)