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

²éѯOracle×ÊԴʹÓÃÇé¿ö

SELECT trim(NAME) ||'            '|| VALUE from v$parameter
WHERE NAME IN ('sga_max_size','db_cache_size','shared_pool_size',
'shared_pool_reserved_size','large_pool_size','java_pool_size',
'db_block_size','db_block_buffers','log_buffer','sort_area_size',
'sort_area_retained_size','hash_area_size','sessions','open_cursors')
ORDER BY NAME;
TRIM(NAME)||''||VALUE
--------------------------------------------------------------------------------
db_block_buffers                        0                        0          
db_block_size                               8192                           8192       
db_cache_size                                   2,281,701,376                 8,589,934,592 
hash_area_size                                4194304                       131072     
java_pool_size             &


Ïà¹ØÎĵµ£º

OracleÊý¾Ý¿âµÄÆÕÍ¨Ç¨ÒÆ·½·¨

ÔÚÏàͬ²Ù×÷ϵͳ»·¾³Ï£¬Ïàͬ°æ±¾OracleÊý¾Ý¿âµÄÇ¨ÒÆ±È½Ï¼òµ¥¡£
 
´óÖ²½Ö裺
1¡¢È·¶¨Ô´»úµÄ²Ù×÷ϵͳÀàÐͺͰ汾£¬Ô´»úÖ÷»úÃû£»Oracle°æ±¾£¬°²×°Ä¿Â¼£¬SID¡£
±¾ÀýÖУ¬Ô´»úΪ£º  Win2k Adv£¬ ywxt£¬Oracle v8.17,  d:\oracle, orcl
Ä¿±ê»úΪ£ºWin2003£¬ywxt£¬Oracle v8.17,  d:\oracle, orcl
  ......

Oracle ÒÆ¶¯Êý¾Ý¿âÎļþ


Oracle
ÒÆ¶¯Êý¾Ý¿âÎļþ

OracleÊý¾Ý¿âÓÉÊý¾ÝÎļþ£¬¿ØÖÆÎļþºÍÁª»úÈÕÖ¾Îļþ
ÈýÖÖÎļþ×é³É¡£
ÓÉÓÚ´ÅÅ̿ռäµÄ±ä»¯£¬»òÕß»ùÓÚÊý¾Ý¿â´ÅÅÌI/OÐÔÄܵĵ÷ÕûµÈ£¬ÎÒ們¿ÉÄܻῼÂÇÒÆ¶¯Êý¾Ý¿âÎļþ¡££¨×¢:
»Ö¸´Êý¾Ý¿âʱ·Ç³£
ÓÐÓã¬ÊôÓÚÀ䱸·Ý£©
²éѯµ±Ç°Êý¾Ý¿âÖÐ,Ïà¹ØÎļþ·¾¶

select * from v$datafile;
se ......

oracleÊý¾Ý¿âµÄ±¸·ÝÓë»Ö¸´

oracleÊý¾Ý¿âµÄ±¸·ÝÓë»Ö¸´
---- µ±ÎÒÃÇʹÓÃÒ»¸öÊý¾Ý¿âʱ£¬×ÜÏ£ÍûÊý¾Ý¿âµÄÄÚÈÝÊǿɿ¿µÄ¡¢ÕýÈ·µÄ£¬µ«ÓÉÓÚ¼ÆËã»úϵͳµÄ¹ÊÕÏ£¨°üÀ¨»úÆ÷¹ÊÕÏ¡¢½éÖʹÊÕÏ¡¢Îó²Ù×÷µÈ£©£¬Êý¾Ý¿âÓÐʱҲ¿ÉÄÜÔâµ½ÆÆ»µ£¬ÕâʱÈçºÎ¾¡¿ì»Ö¸´Êý¾Ý¾Í³ÉΪµ±ÎñÖ®¼±¡£Èç¹ûƽʱ¶ÔÊý¾Ý¿â×öÁ˱¸·Ý£¬ÄÇô´Ëʱ»Ö¸´Êý¾Ý¾ÍÏԵúÜÈÝÒס£Óɴ˿ɼû£¬×öºÃÊý¾Ý¿âµÄ±¸·ÝÊǶ ......

oracleµÄ´æ´¢¹ý³ÌºÍÓαê


OracleÖеĴ洢¹ý³ÌºÍÓαê:
select myFunc(²ÎÊý1,²ÎÊý2..) to dual; --¿ÉÒÔÖ´ÐÐһЩҵÎñÂß¼­
Ò»:OracleÖеĺ¯ÊýÓë´æ´¢¹ý³ÌµÄÇø±ð:
A:º¯Êý±ØÐëÓзµ»ØÖµ,¶ø¹ý³ÌûÓÐ.
B:º¯Êý¿ÉÒÔµ¥¶ÀÖ´ÐÐ.¶ø¹ý³Ì±ØÐëͨ¹ýexecuteÖ´ÐÐ.
C:º¯Êý¿ÉÒÔǶÈëµ½SQLÓï¾äÖÐÖ´ÐÐ.¶ø¹ý³Ì²»ÐÐ.
ÆäʵÎÒÃÇ¿ÉÒÔ½«±È½Ï¸´ÔӵIJéѯд³Éº¯Êý.È»ºóµ½´æ´¢¹ý³Ì ......

oracleÖзÖÒ³µÄʵÏÖ·½Ê½.rownumµÄʹÓÃ

¶ÔÓÚrownumÀ´ËµËüÊÇoracleϵͳ˳Ðò·ÖÅäΪ´Ó²éѯ·µ»ØµÄÐеıàºÅ£¬·µ»ØµÄµÚÒ»ÐзÖÅäµÄÊÇ1£¬µÚ¶þÐÐÊÇ2£¬ÒÀ´ËÀàÍÆ£¬Õâ¸öα×ֶοÉÒÔÓÃÓÚÏÞÖÆ²éѯ·µ»ØµÄ×ÜÐÐÊý£¬¶øÇÒrownum²»ÄÜÒÔÈκαíµÄÃû³Æ×÷Ϊǰ׺¡£
 ¾ÙÀý˵Ã÷£º
ÀýÈç±í£ºstudent(ѧÉú)±í£¬±í½á¹¹Îª£º
ID¡¡¡¡¡¡    char(6)¡¡¡¡¡¡¡¡¡¡ --ѧºÅ
name¡¡¡¡ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ