“ORACLE_HOME”环境变量设置说明

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今天有时间对“ORACLE_HOME”环境变量进行了如下测试:

  [oracle@linux ~]$ export ORACLE_HOME=/u01/app/oracle//product/10.2/db_1

  [oracle@linux ~]$ sqlplus "/ as sysdba"

  SQL*Plus: Release 10.2.0.3.0 - Production on Mon Jun 1 13:13:07 2009

  Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.

  Connected to an idle instance.

  SQL> Disconnected

  [oracle@linux ~]$ export ORACLE_HOME=//u01/app/oracle/product/10.2/db_1

  [oracle@linux ~]$ sqlplus "/ as sysdba"

  SQL*Plus: Release 10.2.0.3.0 - Production on Mon Jun 1 13:13:18 2009

  Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.

  Connected to an idle instance.

  SQL> Disconnected

  [oracle@linux ~]$ export ORACLE_HOME=/u01/app/oracle/product/10.2/db_1/

  [oracle@linux ~]$ sqlplus "/ as sysdba"

  SQL*Plus: Release 10.2.0.3.0 - Production on Mon Jun 1 13:13:31 2009

  Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.

  Connected to an idle instance.

  SQL> Disconnected

  [oracle@linux ~]$ export ORACLE_HOME=/u01/app/oracle/product/10.2/db_1

  [oracle@linux ~]$ sqlplus "/ as sysdba"

  SQL*Plus: Release 10.2.0.3.0 - Production on Mon Jun 1 13:13:42 2009

  Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.

  Connected to:

  Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production

  With the Partitioning and Data Mining options

  SQL>

  测试结果显示,ORACLE_HOME环境变量中对“/”符号要求严格,不能在该字符串变量的值中出现多余“/”符号(虽然这样写在linux下是合法的),否则可能引起连接数据库异常。对于初学者需要提高警惕