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

Oracle ×ÜÕÊÄ£¿é»á¼ÆÒµÎñÖÜÆÚ

Oracle ×ÜÕÊÄ£¿éµÄÒ»¸ö»á¼ÆÒµÎñÖÜÆÚÈçÏÂ:
             1.´ò¿ª×ÜÕÊ»á¼ÆÆÚ
             2.¼ÈëÊÖ¹¤Æ¾Ö¤,°üÀ¨:· ÊÖ¹¤±ê׼ƾ֤
                           · Íâ±Òƾ֤
                           · ͳ¼ÆÆ¾Ö¤
             3.´Ó×ÓÄ£¿éÒýÈëÆ¾Ö¤,Èç:Ó¦ÊÕ¡¢Ó¦¸¶¡¢¿â´æµÈÄ£¿é
             4.ÀûÓö¨ÒåºÃµÄ¾­³£ÐÔÆ¾Ö¤Ä£°åÉú³Éƾ֤
                 ¾­³£ÐÔÆ¾Ö¤Ä£°å°üÀ¨:· ¿ò¼Üƾ֤ģ°å—Óй̶¨ÕÊ»§ÎÞ½ð¶î(Éú³ÉÐëÊÖ¹¤Ìîд)
                           · ±ê׼ƾ֤ģ°å—¹Ì¶¨ÕÊ»§ºÍ¹Ì¶¨½ð¶î
                           · ¹«Ê½Æ¾Ö¤Ä£°å—Óй̶¨ÕÊ»§,½ð¶îÓÈÌØ¶¨¼ÆË㹫ʽ»ñµÃ
             5.ÀûÓóÉÅú·ÖÅ䯾֤ģ°åÉú³Éƾ֤,È罫µ±ÔÂÕ۾ɷÑÓ𴲿ÃÅ·Ö̯
             6.ƾ֤¸´ºË:¿ÉÒÔÀûÓÃÁª»ú¼Èë»ò²éѯ½çÃæ½øÐи´ºË,Ò²¿ÉÒÔÔËÐб¨±í³ÌÐò½«Æ¾Ö¤´ò
                Ó¡³öÀ´ºó¸´ºË
             7.ÊÖ¹¤»ò×Ô¶¯¹ýÕÊ(ºǫ́µÇÕÊ)
             8.¼ì²éÊÇ·ñ


Ïà¹ØÎĵµ£º

oracle 11gµÄ±í¿Õ¼ä¼ÓÃÜ

ÒòΪÃ÷°Ú×ŵÄÔµ¹Ê£¬10.2Òý³öµÄTDEЧÄܶÔÁмÓÃÜÒÔºó£¬ÕÐÖÂÏà¸ÉĿ¼ɥʧÁ˶Բ»µÈʽµÄÅжÏÄÜÁ¦¡£
鍫룼
ENCRYPTIONDEMO@fmw//scripts> create table tde_table(id number encrypt no salt,na
me varchar¶þ(30))
¶þ ;
Table created.
Elapsed: 00:00:00.11
ENCRYPTIONDEMO@fmw//scripts> begin
¶þ for i in 1..2 ......

Oracle ÓÅ»¯²ßÂÔ(¶þ) »ù±íµÄÑ¡Ôñ

»ù´¡±í(Driving Table)ÊÇÖ¸±»×îÏÈ·ÃÎʵıí(ͨ³£ÒÔÈ«±íɨÃèµÄ·½Ê½±»·ÃÎÊ). ¸ù¾ÝÓÅ»¯Æ÷µÄ²»Í¬, SQLÓï¾äÖлù´¡±íµÄÑ¡ÔñÊDz»Ò»ÑùµÄ.
Èç¹ûÄãʹÓõÄÊÇCBO (COST BASED OPTIMIZER),ÓÅ»¯Æ÷»á¼ì²éSQLÓï¾äÖеÄÿ¸ö±íµÄÎïÀí´óС,Ë÷ÒýµÄ״̬,È»ºóÑ¡Óû¨·Ñ×îµÍµÄÖ´Ðз¾¶.
Èç¹ûÄãÓÃRBO (RULE BASED OPTIMIZER) , ²¢ÇÒËùÓеÄÁ¬½ÓÌõ¼þ¶ ......

[Oracle 10g] ÉÁ»Ø»Ö¸´Çø (Flash Recovery Area)

ºÎΪÉÁ»Ø»Ö¸´Çø
Oracle 10g ÓÐÒ»Ïîй¦ÄܳÆÎª:×Ô¶¯µÄ»ùÓÚ´ÅÅ̵ı¸·ÝÓë»Ö¸´( Automatic Disk-Based Backup and Recovery )¡£ÊµÏָù¦ÄܵĻù´¡Îª±¾ÎÄÒª½²ÊöµÄÉÁ»Ø»Ö¸´Çø( Flash Recovery Area )¡£ÉÁ»Ø»Ö¸´ÇøÊÇ Oracle 10g ÖеÄÐÂÊÂÎï¡£¼òµ¥µÄ˵£¬ÉÁ»Ø»Ö¸´ÇøÊÇÒ»¿éÓÃÒÔ´æ´¢»Ö¸´Ïà¹ØµÄÎļþµÄ´æ´¢¿Õ¼ä¡£ÔÊÐíÓû§¼¯Öд洢ËùÓлָ ......

oracle ʱ¼äÀàÐÍ C#

ÔÚsqlÓï¾äÖÐÉæ¼°µ½Ê±¼äÀàÐÍʱ ÈôÖ»ÏëÒªÈÕÆÚ  to_date('2007-7-8','yyyy-mm-dd')
  ÔÚC#ÖÐÓÐdatetimeÀàÐÍ£¬´úÂë˵Ã÷Ò»ÇÐ
  DateTime dt = System.DateTime.Now;
string lsh;
lsh=string.Format("{0:yyyyMMddHHmmss}", dt);
DateTime dt = DateTime.Now;
Label1.Text = dt.To ......

Oracle ERPϵ統½è´û¹ØÏµ±í

ϵͳ·Ö²½Öè²úÉúµÄ·Ö¼£º
1£©¿â´æÄ£¿é×÷½ÓÊÕʱ²úÉúµÄ·Ö¼Ϊ£º
½è£º²ÄÁϲɹº £¨²É¹ºµ¥¼ÛX¶©µ¥ÊýÁ¿£©
´û£ºÓ¦¼Æ¸ºÕ®
£¨²É¹ºµ¥¼ÛX¶©µ¥ÊýÁ¿£©
2£©¿â´æÄ£¿é×÷¼ìÑéÈë¿âʱ²úÉúµÄ·Ö¼Ϊ£º
ϵͳ²úÉúµÄ·Ö¼·Ö±ðΪ£º
1£©¿â´æÄ£¿é×÷½ÓÊÕʱ²úÉúµÄ·Ö¼Ϊ£º
½è£º²ÄÁϲɹº
£¨²É¹ºµ¥¼ÛX¶©µ¥ÊýÁ¿£©
´û£ºÓ¦¼Æ¸ºÕ®
£¨²É¹ºµ¥¼ÛX¶©µ¥Ê ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ