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[数据库]oracle sqlplus login.sql设置


    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videfine _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linesizeset 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 gnameset termout offdefine gname=idlecolumn global_name new_value gnameselect lower(user) ||'@'|| substr(global_name,1,decode(dot,0,length(global_name),dot-1)) global_namefrom (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/oracleSQL*Plus: Release 11.2.0.1.0 Production on Sat Jan 23 00:11:26 2016Copyright (c) 1982, 2009, Oracle. All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing optionsscott@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          1014 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 processedscott@ORCL>

可以看到登录之后 SQLPLUS按照login.sql文件进行相应设置