sqlplus在启动时会自动运行两个脚本:glogin.sql、login.sql这两个文件
执行顺序为
1.默认在在$ORACLE_HOME/sqlplus/admin路径下查找glogin.sql文件执行
2.默认在在当前路径下查找login.sql文件执行，若未查找到对应文件则执行3
3.判断是否设置SQLPATH环境变量，如果设置了该变量则在对应路径下查找并执行，未找到则停止查找
可以在login.sql文件中加入一些常用设置使用SQLPLUS时更便捷，以下试验在ORACLE 11.2.0.1.0上进行
默认$ORACLE_HOME/sqlplus/admin路径下存在glogin.sql文件
当前用户的profile文件中设置SQLPATH环境变量 export SQLPATH=$ORACLE_HOME/sqlplus/admin:$SQLPATH
在默认路径下加入我们自己的login.sql文件，以下配置为常用配置
--SQLPLUS默认编辑器设置为vi define _editor=vi --默认打开DBMA_OUTPUT,这样不必要每次在输入这个命令，同时将默认缓冲池设置得尽可能大 set serveroutput on size 1000000 --假脱机输出文本时，会去除文本行两端的空格，而且行宽不定，如果设置为off（默认设置），假脱机输出的文本行宽度则等于所设置的linesize set trimspool on --设置选择LONG和CLOB列时显示的默认字节数 set long 5000 --设置显示的文本宽为200个字符 set linesize 200 --设置SQLPLUS多久打印一次标题，将此参数设置大些这样每页只显示一次标题 set pagesize 9999 --设置AUTOTRACE得到解释计划输出的默认宽度，一般80足够放下整个计划 column plan_plus_exp format a80 --设置SQLPLUS提示符，显示格式为用户@数据库名 column global_name new_value gname set termout off define gname=idle column global_name new_value gname select lower(user) ||'@'|| substr(global_name,1,decode(dot,0,length(global_name),dot-1)) global_name from (select global_name,instr(global_name,'.') dot from global_name); set sqlprompt '&gname>' set termout on
使用scott用户登录后如下
[oracle@RHEL65 ~]$ sqlplus scott/oracle SQL*Plus: Release 11.2.0.1.0 Production on Sat Jan 23 00:11:26 2016 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options scott@ORCL>select * from emp; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO ---------- ---------- --------- ---------- ------------------- ---------- ---------- ---------- 7369 SMITH CLERK 7902 1980-12-17 00:00:00 800 20 7499 ALLEN SALESMAN 7698 1981-02-20 00:00:00 1600 300 30 7521 WARD SALESMAN 7698 1981-02-22 00:00:00 1250 500 30 7566 JONES MANAGER 7839 1981-04-02 00:00:00 2975 20 7654 MARTIN SALESMAN 7698 1981-09-28 00:00:00 1250 1400 30 7698 BLAKE MANAGER 7839 1981-05-01 00:00:00 2850 30 7782 CLARK MANAGER 7839 1981-06-09 00:00:00 2450 10 7788 SCOTT ANALYST 7566 1987-04-19 00:00:00 3000 20 7839 KING PRESIDENT 1981-11-17 00:00:00 5000 10 7844 TURNER SALESMAN 7698 1981-09-08 00:00:00 1500 0 30 7876 ADAMS CLERK 7788 1987-05-23 00:00:00 1100 20 7900 JAMES CLERK 7698 1981-12-03 00:00:00 950 30 7902 FORD ANALYST 7566 1981-12-03 00:00:00 3000 20 7934 MILLER CLERK 7782 1982-01-23 00:00:00 1300 10 14 rows selected. scott@ORCL>set autot trace exp stat; scott@ORCL>select * from emp; 14 rows selected. Execution Plan ---------------------------------------------------------- Plan hash value: 3956160932 -------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 14 | 532 | 3 (0)| 00:00:01 | | 1 | TABLE ACCESS FULL| EMP | 14 | 532 | 3 (0)| 00:00:01 | -------------------------------------------------------------------------- Statistics ---------------------------------------------------------- 0 recursive calls 0 db block gets 8 consistent gets 0 physical reads 0 redo size 1630 bytes sent via SQL*Net to client 524 bytes received via SQL*Net from client 2 SQL*Net roundtrips to/from client 0 sorts (memory) 0 sorts (disk) 14 rows processed scott@ORCL>
可以看到登录之后 SQLPLUS按照login.sql文件进行相应设置
