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Oracle SqlPlus設(shè)置Login.sql的技巧

 更新時(shí)間:2016年01月23日 21:11:49   作者:今夜通宵  
sqlplus在啟動(dòng)時(shí)會(huì)自動(dòng)運(yùn)行兩個(gè)腳本:glogin.sql、login.sql這兩個(gè)文件,接下來通過本文給大家介紹Oracle SqlPlus設(shè)置Login.sql的技巧,對(duì)oracle sqlplus設(shè)置相關(guān)知識(shí)感興趣的朋友一起學(xué)習(xí)吧

sqlplus在啟動(dòng)時(shí)會(huì)自動(dòng)運(yùn)行兩個(gè)腳本:glogin.sql、login.sql這兩個(gè)文件

執(zhí)行順序?yàn)?/strong>

  1.默認(rèn)在在$ORACLE_HOME/sqlplus/admin路徑下查找glogin.sql文件執(zhí)行

  2.默認(rèn)在在當(dāng)前路徑下查找login.sql文件執(zhí)行,若未查找到對(duì)應(yīng)文件則執(zhí)行3

  3.判斷是否設(shè)置SQLPATH環(huán)境變量,如果設(shè)置了該變量則在對(duì)應(yīng)路徑下查找并執(zhí)行,未找到則停止查找

可以在login.sql文件中加入一些常用設(shè)置使用SQLPLUS時(shí)更便捷,以下試驗(yàn)在ORACLE 11.2.0.1.0上進(jìn)行

默認(rèn)$ORACLE_HOME/sqlplus/admin路徑下存在glogin.sql文件

當(dāng)前用戶的profile文件中設(shè)置SQLPATH環(huán)境變量 export SQLPATH=$ORACLE_HOME/sqlplus/admin:$SQLPATH

在默認(rèn)路徑下加入我們自己的login.sql文件,以下配置為常用配置

--SQLPLUS默認(rèn)編輯器設(shè)置為vi
define _editor=vi
--默認(rèn)打開DBMA_OUTPUT,這樣不必要每次在輸入這個(gè)命令,同時(shí)將默認(rèn)緩沖池設(shè)置得盡可能大
set serveroutput on size 1000000
--假脫機(jī)輸出文本時(shí),會(huì)去除文本行兩端的空格,而且行寬不定,如果設(shè)置為off(默認(rèn)設(shè)置),假脫機(jī)輸出的文本行寬度則等于所設(shè)置的linesize
set trimspool on
--設(shè)置選擇LONG和CLOB列時(shí)顯示的默認(rèn)字節(jié)數(shù)
set long 5000
--設(shè)置顯示的文本寬為200個(gè)字符
set linesize 200
--設(shè)置SQLPLUS多久打印一次標(biāo)題,將此參數(shù)設(shè)置大些這樣每頁只顯示一次標(biāo)題
set pagesize 9999
--設(shè)置AUTOTRACE得到解釋計(jì)劃輸出的默認(rèn)寬度,一般80足夠放下整個(gè)計(jì)劃
column plan_plus_exp format a80
--設(shè)置SQLPLUS提示符,顯示格式為用戶@數(shù)據(jù)庫名
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用戶登錄后如下

[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>

可以看到登錄之后 SQLPLUS按照login.sql文件進(jìn)行相應(yīng)設(shè)置

以上所述是小編給大家分享的Oracle SqlPlus設(shè)置Login.sql的技巧,希望對(duì)大家有所幫助。

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