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

oracleÎÊÌâ¸ßÊÖ°ïæ°¡

¼ÙÈçÎÒ´ÓÒ»¸öÊý¾Ý¿âÖе¼³ö10±íµÄÊý¾Ý£¬ÔÚ¼ÓÈëµ½ÎÒµÄÐÂÊý¾Ý¿âÖУ¬È»¶øÔÚÎÒµÄÊý¾Ý¿âÖÐûÓÐÏàÐŵıí½á¹¹ºÍ±í¿Õ¼ä£¬
ÇëÎÊoracle»á×Ô¶¯´´½¨±íµ¥¼äºÍ±í½á¹¹Â𣿠 Èç¹û²»¿ÉÒÔÄÇÔõô°ì£¿

  ÎÒÔÚoracle°æ¿éÖÐÒ²·¢ÁËͬһÎÊÌ⣬  Ë­ÄܰïÎÒ120 ·Ö
ÔÚSQL ServerÀïÊÇ¿ÉÒԵġ£
Äã¿ÉÒÔ°Ñ10¸ö±íµÄddlÒ²µ¼³öÀ´£¬Èç¹ûÐÂÊý¾Ý¿âÀïûÓÐÕ⼸¸ö±í£¬ÔòÔËÐÐddlÉú³É¡£È»ºó»¹Ô­Êý¾Ý¡£

Â¥ÉÏտţ£¬È˼ÒÎÊÄã³Ô·¹ÁËÂð£¬Äã˵Äã¸Õ18Ëê

¿ÉÒÔÓÃexpºÍimpÀ´µ¼³öµ¼È룬µ«userºÍ±í¿Õ¼ä»¹ÊÇÒªÊÖ¹¤½¨Á¢µÄ¡£±í½á¹¹ºÍÊý¾Ý¿ÉÒÔµ¼µÄ¡£

±íµ¥¼ä£¬ºÃÏñ²»ÄÜ×Ô¶¯´´½¨£¬±í½á¹¹ºÃÏñ¿ÉÒÔ¡£

ÒýÓÃ
Â¥ÉÏտţ£¬È˼ÒÎÊÄã³Ô·¹ÁËÂð£¬Äã˵Äã¸Õ18Ëê

Ŷ£¿ÄÇÄã˵˵£¬Â¥Ö÷ÎʵÄÊÇʲôÒâ˼£¿ÎÒ˵µÄÓÖÊÇʲôÒâ˼£¿
ÁíÍ⣬ÄãÒªÊÇÖ»ÓÐ18ËêµÄ»°£¬±ð²Â²â±ðÈËÒ²18Ëê¡£

ÒýÓÃ
¼ÙÈçÎÒ´ÓÒ»¸öÊý¾Ý¿âÖе¼³ö10±íµÄÊý¾Ý£¬ÔÚ¼ÓÈëµ½ÎÒµÄÐÂÊý¾Ý¿âÖУ¬È»¶øÔÚÎÒµÄÊý¾Ý¿âÖÐûÓÐÏàÐŵıí½á¹¹ºÍ±í¿Õ¼ä£¬
ÇëÎÊoracle»á×Ô¶¯´´½¨±íµ¥¼äºÍ±í½á¹¹Â𣿠 Èç¹û²»¿ÉÒÔÄÇÔõô°ì£¿

  ÎÒÔÚoracle°æ¿éÖÐÒ²·¢ÁËͬһÎÊÌ⣬  Ë­ÄܰïÎÒ120 ·Ö

Ö±½Óµ¼³öÎÊsqlÓï¾äÐÎʽ¾ÍÐÐÀ²£¬°Éinclude privilegsÈ¥µô¾ÍÐÐ
{{


Ïà¹ØÎÊ´ð£º

ÊÇoracleµÄbugô£¿É¢·ÖÁË£¡ - Oracle / »ù´¡ºÍ¹ÜÀí

±¾À´ÒªÐ´¸öupdateÓï¾ä
update table_a A
  set A.flag=1
  where A.id in (select B.id from table_b B)
½á¹ûÎóд³É
update table_a A
  set A.flag=1
  where ......

oracle·þÎñ״̬ÏÔʾ ¡°Í£Ö¹¡±

ÎÒÊÇÓÃÔ¶³Ì×ÀÃæÁ¬²Ù×÷·þÎñÆ÷ÉϵÄÊý¾Ý¿â¡£
ÔÚ´´½¨Ò»¸öÓû§Ö®ºó£¬ÔÙÓÃPLSQLµÇ¼£¬ÔòPLSQLËÀµôÁË¡£
ÎҹصôPLSQLÖ®ºó£¬ÓÃÆäËûÓû§Ò²²»ÄܵǼ¡£

ÎÒ°ÑoracleµÄ·þÎñÍ£Ö¹£¬½á¹û¾ÍÊÇoracleµÄ·þÎñ״̬¾ÍÍ£ÁôÔÚ¡°Í ......

Oracle Êý¾Ýµ¼³öÎÊÌâ - Oracle / ¸ß¼¶¼¼Êõ

exp user/password@dbname file=c:\table.dmp tables=jbitaku,jbitakum grants=y
È»áá°´»Ø車鍵 說Ã÷:¡¡ user/password@dbname ¡¡·Ö別±íʾÓÃ戶Ãû£¬ÃÜ碼ºÍ·þ務Ãû f ......

¶à±í¹ØÁª²éѯµÄ sqlд·¨ - Oracle / »ù´¡ºÍ¹ÜÀí

´ó¼ÒºÃ£¬ÎÒ×î½üά»¤Ò»¸öÏîÄ¿£¬100¶à¸ö±í
Ö»ÄÜÓÃjdbcÖ±Á¬
Óöµ½Á˶à¸ö±í ¹ØÁª ²éѯµÄÇé¿ö Çë´ó¼ÒÖ¸½Ì
±ÈÈç
student(studentid,classid)
class(classid,classname)
class_teacher(classid,teacherid)Õâ¸öÊÇÖмä±í ......

SQL²éѯÎÊÌ⣨oracle) - Oracle / ¿ª·¢

ÈçÏÂ2ÕÅ±í£º
table1:
node_id
parent_id
root_id
value
table2:
node_id
status
±í1´æ´¢ÁËÒ»¿ÃÊ÷£¬±í2´æ´¢Á˽ڵã״̬£¬ÎÊÌâÈçÏ£º
ÈçºÎÓÃSQLÓï¾ä»ñµÃ״̬statusΪ1µÄ½ÚµãµÄËùÓÐ×Ó½ÚµãÒÔ¼°ÆäÏÂ×ÓÊ÷ÖÐËùÓÐ½Ú ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ