ORA-30009: Not enough memory for CONNECT BY operation

SQL> create table t as select rownum x from dual connect by level<10000000;
create table t as select rownum x from dual connect by level<10000000
                                       *
ERROR at line 1:
ORA-30009: Not enough memory for CONNECT BY operation


Elapsed: 00:00:01.14

1:Bug 11805372  ORA-30009 "not enough memory" for certain CONNECT BY statements


 This note gives a brief overview of bug 11805372. 
 The content was last updated on: 22-SEP-2011
 Click here for details of each of the sections below.
Affects:


Product (Component) Oracle Server (Rdbms)
Range of versions believed to be affected Versions BELOW 12.1
Versions confirmed as being affected
11.2.0.2
Platforms affected Generic (all / most platforms affected)
Fixed:


This issue is fixed in
12.1 (Future Release)
11.2.0.3
Symptoms:


Related To:


Leak (Memory Leak / Growth)
Error May Occur
ORA-30009
Connect By / Hierarchical Queries
Description


ORA-30009 may be raised for certain CONNECT BY queries.
 
Rediscovery Notes:
 If an ORA-30009 is raised and the CONNECT BY query returns a constant value
 then this may be root cause if the CONNECT BY is a filter subquery.
 
Workaround
 None
 
Please note: The above is a summary description only. Actual symptoms can vary. Matching to any symptoms here does not confirm that you are encountering this problem. For questions about this bug please consult Oracle Support.
References


Bug:11805372 (This link will only work for PUBLISHED bugs)
Note:245840.1 Information on the sections in this articl

2:分配给oracle的内存太少