Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Oracle ÒÆ¶¯Êý¾ÝÎļþµÄ²Ù×÷·½·¨


½«±í¿Õ¼äºÍÊý¾ÝÎļþ´ÓÒ»¸öλÖÃÒÆ¶¯µ½ÁíÒ»¸öλÖõIJÙ×÷·½·¨
Ò»£® OFFLINE
OFFLINE ·ÖΪALTER DATABASE Óë ALTER TABLESPACE OFFLINE£¬
ËûÃǵÄÇø±ð²Î¿´blog£ºhttp://blog.csdn.net/tianlesoftware/archive/2009/11/29/4898800.aspx
°´Êý¾ÝÎļþÀ´£º
1.ÏȽ«ÏàÓ¦µÄÊý¾ÝÎļþ offline  
ALTER DATABASE DATAFILE 'D:\ORACLE\ORADATA\DBA\TEST01.DBF' OFFLINE;
2.°ÑÊý¾ÝÎļþ copy µ½ÐÂλÖÃ
3. alter database rename file 'D:\ORACLE\ORADATA\DBA\TEST01.DBF' to 'D:\TEST01.DBF';
4. ½éÖʻָ´(offline Êý¾ÝÎļþ±ØÐëÒª½éÖʻָ´)
recover datafile 'D:\TEST01.DBF'
5. ½«ÏàÓ¦µÄÊý¾ÝÎļþ online 
SQL>ALTER DATABASE DATAFILE 'D:\TEST01.DBF' ONLINE;
°´±í¿Õ¼äÀ´£º
1.ÏȽ«ÏàÓ¦µÄ±í¿Õ¼ä offline  
SQL>alter tablespace test offline;  
2.°ÑÊý¾ÝÎļþ copy µ½ÐÂλÖÃ
3. alter tablespace TEST  rename datafile 'D:\TEST01.DBF' to 'D:\ORACLE\ORADATA\DBA\TEST01.DBF'
4. ½«±í¿Õ¼ä online 
SQL>alter tablespace test online;   
 
¶þ£® Shutdown Êý¾Ý¿â
1. ¹Ø±ÕÊý¾Ý¿â 
C:>set ORACLE_SID=DBA
C:>sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on ÐÇÆÚÈÕ 11Ô 29 11:14:02 2009
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
SQL> conn sys/admin as sysdba
ÒÑÁ¬½Ó¡£
SQL> shutdown immediate
Êý¾Ý¿âÒѾ­¹Ø±Õ¡£
ÒѾ­Ð¶ÔØÊý¾Ý¿â¡£
ORACLE Àý³ÌÒѾ­¹Ø±Õ¡£
SQL>
2. °ÑÊý¾ÝÎļþ copy µ½ÐÂλÖÃ
3. rename datafile
SQL> startup mount
ORACLE Àý³ÌÒѾ­Æô¶¯¡£
Total System Global Area  289406976 bytes
Fixed Size          


Ïà¹ØÎĵµ£º

jdbcÁ¬½ÓOracle

      ËäȻѧϰJavaºÜ¾ÃÁË£¬×Ô¼ºÒ²Á¬½Ó¹ýһЩÊý¾Ý¿â£¬±ÈÈçmysqlÖ®ÀàµÄ£¬Èç½ñÄØ£¬Ò²Ñ§Ï°ÁËÒ»¶Îʱ¼äµÄOracle£¬È»¶øÄØ£¬½ñÌìÊÇÎÒµÚÒ»´ÎÁ¬½ÓOracle£¬ºÙºÙ£¬Ó¦¸Ã»¹²»ËãÌ«³Ù°É¡£
    ½ñÌìÄØ£¬Óе㱿׾£¬´ó¼ÒĪЦ£¡
    ÎÒÕâÊÇÒ»¸ö²éѯÀý×Ó
    Ê×ÏÈ£¬Ô ......

ºÍÍøÓÑ̽ÌÖ ÈçºÎѧϰOracle

http://www.inthirties.com/thread-757-1-1.html
ºÜÈÙÐÒ£¬±»ÑûÇëΪCSDNѧϰ´ó±¾ÓªÀïµÄOracleÀÏʦ¡£ÓиöÍøÓÑ·¢ÏûÏ¢¹ýÀ´£¬Ò»Æð̽ÌÖÈçºÎѧϰOracle£¬Ò»ÏÂÊǻظ´£¬ºÍ´ó¼ÒÒ»Æð̽ÌÖ¡£
 Ê×ÏÈ£¬ÒªÃ÷È·ÄãµÄ·½ÏòºÍÄ¿±ê¡£
¶ÔÓÚOracleÀ´Ëµ£¬Õâ¸öÌåϵÊDZȽÏÅÓ´óµÄ£¬ËùÒÔÃ÷È·Ò»¸öÄ¿±êºÍÄãµÄ·½ÏòÊÇÔÚѧϰǰÐèҪ˼¿¼µÄÎÊÌâ¡£ ¹ÜÀí£¬ ......

Oracle ³£Óú¯Êý

001¡¢×Ö·û
length/lengthb   ×Ö·ûÊý(1¸öºº×Ö1¸ö×Ö·û) / ×Ö½ÚÊý(1¸öºº×Ö2¸ö×Ö½Ú)
ltrim/rtrim/trim ɾ³ý¿Õ¸ñ
lower/upper      ´óСдת»»
select length('abc') from dual;
select substr(ename, 1, 3) from emp; ´ÓµÚÒ»¸ö×Ö·û¿ªÊ¼½Ø£¬Ò»¹²½Ø3¸ö×Ö·û
substr('abcdefg',2,3) => ......

Oracle Ö÷ÒªÅäÖÃÎļþ½éÉÜ£¨×ªÌû£©

Oracle Ö÷ÒªÅäÖÃÎļþ½éÉÜ£º
    profileÎļþ£¬oratab Îļþ£¬Êý¾Ý¿âʵÀý³õʼ»¯Îļþ initSID.ora£¬¼àÌýÅäÖÃÎļþ£¬ sqlnet.ora Îļþ£¬tnsnames.ora Îļþ
1.2 Oracle Ö÷ÒªÅäÖÃÎļþ½éÉÜ
1.2.1 /etc/profile Îļþ
               ÏµÍ³¼¶µÄ»·¾³±äÁ¿Ò»°ãÔÚ/etc/p ......

ORACLE to_charº¯ÊýÏê½â

 The following are number examples for the to_char function.
to_char(1210.73, '9999.9')
would return '1210.7'
to_char(1210.73, '9,999.99')
would return '1,210.73'
to_char(1210.73, '$9,999.00')
would return '$1,210.73'
to_char(21, '000099')
would return '000021'
The following is a list ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ