thiru@9.2.0:SQL>create table t3 (x int);

Table created.

thiru@9.2.0:SQL>alter table t3 move online;
alter table t3 move online
*
ERROR at line 1:
ORA-01735: invalid ALTER TABLE option

thiru@9.2.0:SQL>drop table t3;

Table dropped.

thiru@9.2.0:SQL>create table t3(x int primary key) organization index;

Table created.

thiru@9.2.0:SQL>alter table t3 move online;

Table altered.