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select owner, table_name
from dba_tab_columns
where lower(column_name)='firstname';
²éѯ³öÄÄЩ±í°üº¬firstname×Ö¶ÎÒÔ¼°ÕâЩ±íÊôÓÚÄĸöÓû§
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Oracle Data blocks £¬Extents£¬Segment

£¨Ò»£©Data blocks £¬Extents£¬Segment
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    ÏÈ¿´Data blocks£¨Ò²½ÐÂß¼­¿é£¬oracle¿é£¬Ò³£©°É£¬oracle´æ´¢Êý¾Ý¶¼ÊÇÔÚÕâЩÊý¾Ý¿éÖУ¬Ò»¸öÊý¾Ý¿éÊÇ´ÅÅÌÉÏÊý¾Ý¿âÎïÀí¿Õ¼äһϵÁÐÎïÀí×Ö½ÚµÄ×é³É¡£
    ±ÈData blocks¸ü¸ßÒ»²ãµÄÂß¼­Êý¾Ý¿é¿Õ¼äÊÇe ......

Êý¾Ý¿âtimestenÓë oracle ´¦ÀíÈÕÆÚÉÏд·¨ÉϵIJ»Í¬

     ÓÉÓÚ¹«Ë¾ÒµÎñÔö³¤½Ï¿ì£¬Êý¾Ý¿âoracleѹÁ¦Ô½À´Ô½´ó£¬¹«Ë¾¿¼ÂÇÔÚÓ¦Ó÷þÎñÆ÷ Websphere ºÍ Êý¾Ý¿âoracleÖ®¼äÔö¼Ó timestenÊý¾Ý¿âÀ´ÊµÏÖÊý¾ÝµÄ¶Áд·ÖÀ룬ÁíÍâÓÉÓÚtimestenÊÇÄÚ´æÊý¾Ý¿â£¬ËùÒÔ²éѯËÙ¶ÈÉÏÒªÓÅÓÚ oracle Êý¾Ý¿â£¬Á½¸öÊý¾Ý¿âËäÈ»¶¼ÊÇoracle¹«Ë¾µÄ²úÆ·£¬µ«ÊÇÔںܶàsqlµÄд·¨ÉÏÊDz»ÏàͬµÄ£¬Ï ......

Oracleѧϰ×ܽá

Oracle£ºÒ»¸öÊý¾Ý¿âÓжà¸öÓû§,Ò»¸öÓû§ÓµÓÐÒ»×éÊý¾Ý¿â¶ÔÏó,Õâ¸öÓû§ÎÒÃÇË׳ÆÎª·½°¸,
      ͨ³£Ò»¸öÒµÎñϵͳ¶ÔÓ¦Ò»¸öÊý¾Ý¿âÓû§¡£
¡ïOracle°²×°³É¹¦ºó»á×Ô¶¯´´½¨Ê®À´¸öϵͳ½ç±ðµÄÕË»§¡£Ä¬ÈÏÇé¿öÏÂÕâЩÕË»§ÖÐÖ»ÓÐËĸö¿ÉÓã¬ÆäËüµÄÕʺŶ¼±»ÉèÖóÉÁËËø¶¨»òÊÇÉèÖÃΪ¹ý   ÆÚ״̬£¬ÕâËĸöÕÊ»§¾Í ......

ÈçºÎ±àдoracle´æ´¢¹ý³Ì

ÔÚÎÒµÄÉÏÒ»¸öÒøÐÐÏîÄ¿ÖУ¬ÎÒ½Óµ½±àдORACLE´æ´¢¹ý³ÌµÄÈÎÎñ£¬ÎÒÊdzÌÐòÔ±£¬ÄÔ´üÀïÖ»ÓÐһЩÈçºÎʹÓÃCALLABLE½Ó¿Úµ÷Óô洢¹ý³ÌµÄ¾­Ñ飬һʱ²»ÖªÈçºÎÏÂÊÖ£¬ÎÒ²éÔÄÁËһЩ×ÊÁÏ£¬Í¨¹ýʵ¼ù·¢ÏÖ±àдORACLE´æ´¢¹ý³ÌÊǷdz£²»ÈÝÒ׵Ť×÷£¬¼´Ê¹ÉÏ·ÒԺ󣬵÷ÊÔºÍÑéÖ¤·Ç³£Âé·³¡£¼òµ¥µØ½²£¬Oracle´æ´¢¹ý³Ì¾ÍÊÇ´æ´¢ÔÚOracleÊý¾Ý¿âÖеÄÒ»¸ö³ÌÐò ......

oracle DBTIMEZONEÊ±Çøµ÷Õû

select dbtimezone from dual ;  --²é¿´Êý¾Ý¿âÊ±Çø
select sessiontimezone from dual ;  --²é¿´»á»°Ê±Çø
1.select u.name || '.' || o.name || '.' || c.name TSLTZcolumn
       from sys.obj$ o, sys.col$ c, sys.user$ u
      &nbs ......
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