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

oracleÖеÄÉÁ±í¹¦ÄÜ

1.Èç¹ûÄãÎóɾ³ýÁËÊý¾Ý,²»Óú¦ÅÂ,¶Ìʱ¼äÄÚ»¹ÊÇ¿ÉÒÔ»Ö¸´µÄ.
select * from (select * from claim_monitor_dispatch as of timestamp to_date('20091203 08:30:00','yyyymmdd hh24:mi:ss')
)
where to_char(created_date,'yyyymmdd')='20090707'
2.Îóɾ³ý±íÖ®ºóµÄ»Ö¸´,»Ö¸´ÕûÕűí
 flashback table name before drop
3.Îóɾ³ýµÄÊý¾ÝÖ÷Ҫȡ¾öÓڻعö¶Î¿Õ¼äµÄ´óС,ÒÔ¼°±£ÁôµÄʱ¼ä,Á½¸öÖ¸±ê. ÓÃDBAÕʺÅÁ¬ÈëÊý¾ÝºóÓÃÒÔÏÂÃüÁî¿É²é¿´.
show parameter undo


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 ......

ORACLE´Ó±íÖÐËæ»ú·µ»ØnÌõ¼Ç¼

ʹÓÃORDER BY×Ӿ䣬ROWNUMÄÚÖú¯ÊýºÍDBMS_RANDOM°üÖеÄÄÚÖú¯ÊýVALUEÀ´ÊµÏÖ
SQL> select * from
2 (
3 select ename,job
4 from emp
5 order by dbms_random.value()
6 )
7 where rownum<=5;
ENAME JOB
---------- ---------
TURNER SALESMAN
SMITH CLERK
MARTIN SA ......

linuxÏÂoracle Êý¾Ý¿âµÄÆô¶¯ºÍ¹Ø±Õ

QQ:1156316388   Tel:010-51527259
Ò»¡¢Æô¶¯
    Èý¸öÃüÁ
    1¡¢sqlplux /nolog
    2¡¢connect /as sysdba
    3¡¢startup
    ¶þ¡¢¹Ø±Õ
    1¡¢shutdown immediate;
    [oracle@zhao ......

ORACLE ³£ÓõÄSQLÓï·¨ºÍÊý¾Ý¶ÔÏó

 Ò».Êý¾Ý¿ØÖÆÓï¾ä (DML) ²¿·Ö
            1.Insert (ÍùÊý¾Ý±íÀï²åÈë¼Ç¼µÄÓï¾ä)
            Insert INTO ±íÃû(×Ö¶ÎÃû1, ×Ö¶ÎÃû2, ……) VALUES ( Öµ1, Öµ2, ……);
&nb ......

oracleÖÐsql loaderµÄÓ÷¨

sql loader ¹¤¾ßËü¿ÉÒÔ°ÑһЩÒÔÎı¾¸ñʽ´æ·ÅµÄÊý¾Ý˳ÀûµÄµ¼Èëµ½oracleÊý¾Ý¿âÖУ¬ÊÇÒ»ÖÖÔÚ²»Í¬Êý¾Ý¿âÖ®¼ä½øÐÐÊý¾ÝÇ¨ÒÆµÄ·Ç³£·½±ã¶øÇÒͨÓõŤ¾ß¡£È±µã¾ÍËٶȱȽÏÂý£¬ÁíÍâ¶ÔblobµÈÀàÐ͵ÄÊý¾ÝÓеãÂé·³¡£
ÔÚDOCÏÂÃæÊäÈ룺sqlldr userid=user/password@sid control=result.ctl
Àý×Ó:
SQLLDR USERID=zero/zero@ORACLE CONTROL ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ