sqlplus之glogin.sql and login.sql

sqlplus在被执行时，都会执行glogin.sql，若执行sqlplus的当前目录下有login.sql，那么login.sql也会被执行。

glogin.sql:

-- DESCRIPTION

-- SQL*Plus global login "site profile" file

-- Add any SQL*Plus commands here that are to be executed when a

-- user starts SQL*Plus, or uses the SQL*Plus CONNECT command.

-- USAGE

-- This script is automatically run

所以， glogin.sql是全局的，当sqlplus被启动时，里面的命令都会被执行； glogin.sql位于$ORACLE_HOME/sqlplus/admin下；

login.sql文件中的所有命令的优先级都比glogin.sql中的高。即glogin.sql中的命令会先被执行，若login.sql中的命令会后执行，若login.sql和glogin.sql有重复的命令，那么login.sql中的命令会覆盖glogin.sql中的命令.

[oracle@myoracle admin]$ cat $ORACLE_HOME/sqlplus/admin/glogin.sql

[oracle@myoracle admin]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Sat Jul 6 17:51:33 2013

Copyright (c) 1982, 2009, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show linesize
linesize 80
SQL>

2. 现在修改glogin.sql，增加"set linesize 100"

[oracle@myoracle admin]$ cat $ORACLE_HOME/sqlplus/admin/glogin.sql
set linesize 100

[oracle@myoracle admin]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Sat Jul 6 17:55:53 2013

Copyright (c) 1982, 2009, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show linesize
linesize 100

3. 现在在运行sqlplus的当前目录创建login.sql, 并在里面添加"set linesize 200"

[oracle@myoracle feng]$ pwd
/home/oracle/feng

[oracle@myoracle feng]$ cat login.sql 
set linesize 200

这时，再运行sqlplus，查看linesize的值

[oracle@myoracle feng]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Sat Jul 6 18:00:02 2013

Copyright (c) 1982, 2009, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show linesize
linesize 200

sqlplus之glogin.sql and login.sql

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