WindowsÏÂÃüÁîÐÐÏÂÆô¶¯ORACLE·þÎñ
* ¼ì²é¼àÌýÆ÷״̬£º
C:\>lsnrctl status
LSNRCTL for 32-bit Windows: Version 9.2.0.1.0 - Production on 30-6ÔÂ -2009 21:08
:04
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
ÕýÔÚÁ¬½Óµ½ (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
TNS-12541: TNS£ºÎÞ¼àÌýÆ÷
TNS-12560: TNS: ÐÒéÊÊÅäÆ÷´íÎó
TNS-00511: ÎÞ¼àÌýÆ÷
32-bit Windows Error: 2: No such file or directory
ÕýÔÚÁ¬½Óµ½ (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=www-7f628f1510d)(PORT=1521)
))
TNS-12541: TNS£ºÎÞ¼àÌýÆ÷
TNS-12560: TNS: ÐÒéÊÊÅäÆ÷´íÎó
TNS-00511: ÎÞ¼àÌýÆ÷
32-bit Windows Error: 61: Unknown error
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C:\>sqlplus /nolog
SQL*Plus: Release 9.2.0.1.0 - Production on ÐÇÆÚ¶þ 6ÔÂ 30 21:10:24 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
SQL> conn scott/tiger@oradb
ERROR:
ORA-12541: TNS: ûÓмàÌýÆ÷
SQL> exit;
££Èç¹ûûÓÐÆô¶¯ORACLE·þÎñµÄ»°£¬½«³öÏÖÏÂÃæµÄ´íÎó¶ø²»ÊÇÉÏÃæ£º ERROR: ORA-12560: TNS: ÐÒéÊÊÅäÆ÷´íÎó
C:\>sqlplus "/as sysdba"
SQL*Plus: Release 9.2.0.1.0 - Production on ÐÇÆÚ¶þ 6ÔÂ 30 21:14:17 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
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scott@eddev> select ename, sal from emp where sal > any (1600, 2999);
ENAME &nb ......
1. select * from emp;
2. select empno, ename, job from emp;
3. select empno ±àºÅ, ename ÐÕÃû, job ¹¤×÷ from emp;
4. select job from emp;
5. select distinct job from emp;
6. select distinct empno, job from emp;
˵Ã÷:ÒòΪ¹ÍÔ±±àºÅ²»Öظ´, ËùÒÔ´Ëʱ֤Ã÷ËùÓеÄÁÐûÓÐÖØ¸´,ËùÒÔ²»ÄÜÏû ......
ÎÒÃÇÖªµÀ,ÔÚOracleÊý¾Ý¿âÖÐ,¿ÉÒÔͨ¹ýkill sessionµÄ·½Ê½À´ÖÕÖ¹Ò»¸ö½ø³Ì,Æä»ù±¾Óï·¨½á¹¹Îª:
alter system kill session 'sid,serial#' ;
±»killµôµÄsession,״̬»á±»±ê¼ÇΪkilled,Oracle»áÔÚ¸ÃÓû§ÏÂÒ»´ÎtouchʱÇå³ý¸Ã½ø³Ì.
ÎÒÃÇ·¢ÏÖµ±Ò»¸ösession±»killµôÒԺ󣬸ÃsessionµÄpaddr±»Ð޸ģ¬Èç¹ûÓжà¸ösession±»kill£¬ÄÇô¶ ......
Oracle lpad º¯Êý£º
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http://soysky.blogbus.com/logs/43623642.html
Oracle lpadº¯Êý½«×ó±ßµÄ×Ö·û´®Ìî³äÒ»Ð©ÌØ¶¨µÄ×Ö·û£¬ÆäÓï·¨¸ñʽÈçÏ£º
lpad( string1, padded_length [, pad_string ] )
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string1ÊÇÐèÒªÕ³Ìù×Ö·ûµÄ×Ö·û´®£»
padde ......
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