----创建会话级临时表jack_tmp_session---- 1 SQL> create global temporary table jack_tmp_session on commit preserve rows as select  * from dba_objects where 1=2;
 2
 3 表已创建。
 4
 5 SQL> select table_name,temporary,duration,tablespace_name from user_tables  where table_name='JACK_TMP_SESSION';
 6
 7 TABLE_NAME               T DURATION            TABLESPACE_NAME
 8 ------------------------------ - ------------------------------ ------------------------------
 9 JACK_TMP_SESSION           Y SYS$SESSION
10
11 SQL> select count(*) from JACK_TMP_SESSION;
12
13   COUNT(*)
14 ----------
15      0
16
17 SQL> select sid from v$mystat where rownum=1;
18
19        SID
20 ----------
21     38
22 ----往表里面插入一下数据，并且执行commit，发现数据没有丢失----23 SQL> insert into JACK_TMP_SESSION select * from dba_objects;
24
25 已创建72511行。
26
27 SQL> select count(*) from JACK_TMP_SESSION;
28
29   COUNT(*)
30 ----------
31      72511
32
33 SQL> commit;
34
35 提交完成。
36
37 SQL> select count(*) from JACK_TMP_SESSION;
38
39   COUNT(*)
40 ----------
41      72511
42 ----从另外一个SESSION中查询JACK_TMP_SESSION表，发现没有数据，说明两个不同的SESSION所插入的数据是互不相干的----43 SQL> select sid from v$mystat where rownum=1;
44
45        SID
46 ----------
47     26
48
49 SQL> select count(*) from JACK_TMP_SESSION;
50
51   COUNT(*)
52 ----------
53      0
54 ----从SESSION38中退出SQLPLUS，再进去，发现数据没有了----55 SQL> exit;
56 从 Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
57 With the Partitioning, OLAP, Data Mining and Real Application Testing options 断开
58 [oracle@rhel5 ~]$ ./rlwrap
59
60 SQL*Plus: Release 11.2.0.1.0 Production on 星期三 11月 13 14:59:28 2013
61
62 Copyright (c) 1982, 2009, Oracle.  All rights reserved.
63
64 SQL> conn echo/echo
65 已连接。
66 SQL> select count(*) from JACK_TMP_SESSION;
67
68   COUNT(*)
69 ----------
70      0

 1 SQL> create global temporary table jack_tmp_transaction on commit delete rows as select * from dba_objects where 1=2;
 2
 3 表已创建。
 4
 5 SQL> set linesize 200;
 6 SQL> select table_name, temporary, DURATION from user_tables  where table_name='JACK_TMP_TRANSACTION';
 7
 8 TABLE_NAME               T DURATION
 9 ------------------------------ - ------------------------------
10 JACK_TMP_TRANSACTION           Y SYS$TRANSACTION
11
12 SQL> select count(*) from JACK_TMP_TRANSACTION;
13
14   COUNT(*)
15 ----------
16      0
17
18 SQL> insert into JACK_TMP_TRANSACTION select * from dba_objects;
19
20 已创建72512行。
21
22 SQL> select count(*) from JACK_TMP_TRANSACTION;
23
24   COUNT(*)
25 ----------
26      72512
27
28 SQL> commit;
29
30 提交完成。
31
32 SQL> select count(*) from JACK_TMP_TRANSACTION;
33
34   COUNT(*)
35 ----------
36      0