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1. ´´½¨ÐµÄÊý¾Ý¿âʵÀý£º
D:\oracle\product\10.2.0\admin\adidb\scripts>dbca
2.Æô¶¯ºÍ¹Ø±ÕʵÀý
D:\oracle\product\10.2.0\admin\adidb\scripts>net start oracleserviceorcl
D:\oracle\product\10.2.0\admin\adidb\scripts>net stop oracleserviceorcl
3.Á¬½ÓÊý¾Ý¿âʵÀý
1> ÉèÖÃoracle_sid (set oracle_sid=orcl)
2> sqlplus / as sysdba ÒÔdbaµÄÉí·ÝµÇ¼
3> ²é¿´ÊµÀý״̬£º select status, instance_name from v$instance ;


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sqlÓï¾äµÄ»ù´¡»¹ÊǺÜÖØÒªµÄ¡£Èç¹ûÄãÏë×ö¿ª·¢pl/sqlÒ» ......

Oracle SCN ½éÉÜÈýƪÎÄÕÂ

ÎÄÕÂÒ»£ºSCNÊÇʲô£¿The System Change Number
  system change number (SCN)ÊÇÒ»¸ö·Ç³£ÖØÒªµÄ±ê¼Ç£¬OracleʹÓÃËüÀ´±ê¼ÇÊý¾Ý¿âÔÚ¹ýȥʱ¼äÄÚµÄ״̬ºÍ¹ì¼£¡£
OracleʹÓÃSCNÀ´±£´æËùÓб仯µÄ¹ì¼£¡£SCNÊÇÒ»¸öÂß¼­Ê±ÖÓÀ´¼Ç¼Êý¾Ý¿âʼþ¡£Ëü·Ç³£µÄÖØÒª£¬²¢²»ÊÇÖ»ÊÇΪÁ˻ָ´¡£
SCNÓеãÀàËÆÓÚsequence£¬OracleÔÚSGAÖÐÔ ......

oracle¸ßˮλÏß

ʲôÊÇË®Ïß(High Water Mark)?
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ËùÓеÄoracle¶Î(segments£¬ÔÚ´Ë£¬ÎªÁËÀí½â·½±ã£¬½¨Òé°Ñsegment×÷Ϊ±íµÄÒ»¸öͬÒå´Ê) ¶¼ÓÐÒ»¸öÔÚ¶ÎÄÚÈÝÄÉÊý¾ÝµÄÉÏÏÞ£¬ÎÒÃÇ°ÑÕâ¸öÉÏÏÞ³ÆΪ"high water mark"»òHWM¡£Õâ¸öHWMÊÇÒ»¸ö±ê¼Ç£¬ÓÃÀ´ËµÃ÷ÒѾ­ÓжàÉÙûÓÐʹÓõÄÊý¾Ý¿é·ÖÅä¸øÕâ¸ösegment¡£HWMͨ³£Ôö³¤µÄ·ù¶ ......

oracleÖжÔÅÅÐòµÄ×ܽá

¡¡¡¡select * from perexl order by nlssort(danwei,'NLS_SORT=SCHINESE_PINYIN_M');
¡¡¡¡-- °´²¿Ê×ÅÅÐò
¡¡¡¡select * from perexl order by nlssort(danwei,'NLS_SORT=SCHINESE_STROKE_M');
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¡¡¡¡select * from perexl order by nlssort(danwei,'NLS_SORT=SCHINESE_RADICAL_M');
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select name from v$datafile;
create dataspace tablespace datafile '/oracle/oradata/orcl/data01.dbf' size 1024m,'/oracle/oradata/orcl/data02.dbf' size 1024m autoextend on next 100m maxsize unlimited;
alter tablespace dataspace add datafile '/oracle/oradata/orcl/da ......
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