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 --sqlplus
sqlplus;
sys /password as sysdba;
--²éÕÒÓû§ID£¨user#£©,Êý¾Ý¿âÀïÃæ´æ·ÅµÄÓû§¶¼ÊÇ´óд!
select user#,name,password from user$ where name ='FACT';
USER# NAME                           PASSWORD
   91     FACT                           7A0F2B316C212D67
-¸ù¾ÝÓû§ID ¸üÐÂÓû§Ãû¡£
update user$ set name= FACT where user#=91;
--Ìá½»¡£
commit;
--È·ÈÏÓû§ÃûÊÇ·ñ¸üгɹ¦¡£
select user#,name,password from user$ where USER# = 91;
USER# NAME                           PASSWORD
91       FACT                            7A0F2B316C212D673
--ÐÞ¸ÄÓû§ÃÜÂë¡£
alter user fact identified by fact;
--ÊÖ¹¤Ö´Ðмì²éµã²Ù×÷£¬½«Database Buffer CacheÖеÄÊý¾ÝÇ¿ÖÆÐ´³öµ½Íâ´æ¡£
alter system checkpoint;
--Ç¿ÖÆË¢ÐÂShared Pool£¡ÒòΪOracleµÄÊý¾Ý×ÖµäÐÅÏ¢ÊÇ»º´æÔÚShared PoolµÄDictionary CacheÖеġ£
alter system flush shared_pool;
--È·ÈÏÃÜÂëÊÇ·ñÐ޸ijɹ¦¡£
select user#,name,password from user$ where USER# = 91;
USER# NAME                           PASSWORD
   91    FACT                             7A0F2B316C212D67
--²âÊÔÓû§ÊÇ·ñ¿ÉÓá£
conn fact/fact
Connected.
show user
USER is "FACT"
--ÖØÆôORACLE·þÎñ


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select t.id ,t.code, t.name ,t.pid
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from tas_catalog t
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start with id=110
connect by  pid = prior id
order siblings  by id
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