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ORACLE ´´½¨Êý¾Ý¿âÁ¬½ÓDBLink

CREATE PUBLIC DATABASE LINK ASXT_LINK ;
CONNECT TO ASXT IDENTIFIED BY PASSWORD ;
USING '(DESCRIPTION =(ADDRESS_LIST =(ADDRESS =(PROTOCOL = TCP)(HOST = 192.168.0.100)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = AAA)))'; ......

oracle ÈçºÎ°ÑÊý¾Ý¿â±äΪ·Ç¹éµµÈÕ־ģʽ

shutdown immediate
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alter database archivelog
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oracle lockmode

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2£ºRow-S Ðй²Ïí(RS)£º¹²Ïí±íËø£¬sub share 
     e.g. 2¼¶ËøÓУºSelect for update,Lock For Update,Lock Row Share 
   ......

ORACLE Óë mysql µÄÇø±ð

 1.ÔÚORACLEÖÐÓÃselect * from all_usersÏÔʾËùÓеÄÓû§£¬¶øÔÚMYSQLÖÐÏÔʾËùÓÐÊý¾Ý¿âµÄÃüÁîÊÇshow databases¡£¶ÔÓÚÎÒµÄÀí½â£¬ORACLEÏîÄ¿À´ËµÒ»¸öÏîÄ¿¾ÍÓ¦¸ÃÓÐÒ»¸öÓû§ºÍÆä¶ÔÓ¦µÄ±í¿Õ¼ä£¬¶øMYSQLÏîÄ¿ÖÐÒ²Ó¦¸ÃÓиöÓû§ºÍÒ»¸ö¿â¡£ÔÚORACLE(db2Ò²Ò»Ñù)Öбí¿Õ¼äÊÇÎļþϵͳÖеÄÎïÀíÈÝÆ÷µÄÂß¼­±íʾ£¬ÊÓͼ¡¢´¥·¢Æ÷ºÍ´æ´¢¹ý³ÌÒ² ......
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