方法一：使用sqlplus
64位：
[Oracle@db2 ~]$ sqlplus / as sysdba;
SQL*Plus: Release 10.2.0.5.0 - Productionon Sun Sep 25 08:57:22 2011
Copyright (c) 1982, 2010, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise EditionRelease 10.2.0.5.0 - 64bit Production
With the Partitioning, OLAP, Data Miningand Real Application Testing options
32位：
[oracle@rac1 ~]$ export ORACLE_SID=orcl1
[oracle@rac1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Sat Jun 14 16:24:38 2014
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
64位：
[Oracle@db2 ~]$ sqlplus / as sysdba;
SQL*Plus: Release 10.2.0.5.0 - Productionon Sun Sep 25 08:57:22 2011
Copyright (c) 1982, 2010, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise EditionRelease 10.2.0.5.0 - 64bit Production
With the Partitioning, OLAP, Data Miningand Real Application Testing options
32位：
[oracle@rac1 ~]$ export ORACLE_SID=orcl1
[oracle@rac1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Sat Jun 14 16:24:38 2014
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
方法二：查看v$version视图
32位：
SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod --此处提示安装的数据库是32位
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
64位：
SQL> select address from v$sql where rownum<2;
ADDRESS
--------
30AE76F0
32位：
SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod --此处提示安装的数据库是32位
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
64位：
SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise EditionRelease 10.2.0.5.0 - 64bi --此处提示安装的数据库是64位
PL/SQL Release 10.2.0.5.0 - Production
CORE 10.2.0.5.0 Production
TNS for Linux: Version 10.2.0.5.0 -Production
NLSRTL Version 10.2.0.5.0 – Production
方法三：查看v$sql 视图
32位：输出为8位16进制BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise EditionRelease 10.2.0.5.0 - 64bi --此处提示安装的数据库是64位
PL/SQL Release 10.2.0.5.0 - Production
CORE 10.2.0.5.0 Production
TNS for Linux: Version 10.2.0.5.0 -Production
NLSRTL Version 10.2.0.5.0 – Production
方法三：查看v$sql 视图
SQL> select address from v$sql where rownum<2;
ADDRESS
--------
30AE76F0
64位：输出为16位32进制
SQL> select address from v$sql whererownum<2;
ADDRESS
----------------
0000000196FDF7D8
SQL> select address from v$sql whererownum<2;
ADDRESS
----------------
0000000196FDF7D8
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/29289867/viewspace-1846149/ ，如需转载，请注明出处，否则将追究法律责任。
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