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--´´½¨¶ÔÏóÀàÐÍ
create or replace type emp_typ as object (
id number,
name varchar2(30),
sal number,
comm number,
member procedure change_comm(new_comm number),
member function get_info return  varchar2
) ;
--´´½¨¶ÔÏóÀàÐ͹¹Ô캯Êý¶¨Òå
create or replace type body emp_typ is
member procedure change_comm(new_comm number)
is
begin
comm:=new_comm;
end;
member function get_info return varchar2
is
v_info varchar2(30);
begin
v_info:='ÐÕÃû:'||name ||' ¹¤×Ê:'||sal;
return v_info;
end;
end;
--´´½¨´øÀàÐ͵ıí
create table detail (empt emp_typ,tel number,addr Varchar2(20))
--²åÈëÊý¾Ý
insert into detail values (emp_typ(6666,'yangliping',5000,3000),13675047974,'shanghai caobao')
--¸üÐÂÊý¾Ý
update  detail set empt=emp_typ(7777,'yangliing',3000,2000) where tel=13675047974
--²éѯÊý¾Ý
select * from detail
½á¹û:
EMPT.ID EMPT.NAME EMPT.SAL EMPT.COMM   TEL          ADDR
6666 yangliing   8000     5000        13833338888  ±±¾©
7777 yangliing   3000     2000       13675047974  shanghai caobao
--ɾ³ý¶ÔÏó±íÊý¾Ý
delete from detail  where tel=13675047974


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O:select ceil(-1.001)  value from dual
3.È¡Õû£¨Ð¡£© 
S:select floor(-1.001) value  
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4.È ......

Oracle 10G DataGuard

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Oracle 10G DataGuard
server A: 10.85.10.44 SID=mesdb
target server B: 10.85.10.43
oracle version:10.2.0.1
OS platform : windows 2003
Data GuardĬÈÏÊÇmaximize performance£¬ ¿ÉÒÔÓÃÒÔÏÂÓï¾äÀ´½øÐÐģʽ¼äµÄÇл»¡£
ALTER DATABASE ......

oracle³£ÓÃÊý¾ÝÀàÐÍ

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1.view ÏÞÖÆ
create or replace view my_view01
as select * from emp
with check option
/
2.synonym ͬÒå´Ê
create synonym dept for scott.dept;
select * from dept;
3.sysdba ¹«¹²
drop synonym dept;
create public synonym dept for scott.dept;
desc dba_synonyms
......

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 create tablespace ±í¿Õ¼äÂß¼­Ãû datafile '±í¿Õ¼äÎļþµÄÎïÀíÂß¼­'
 size Îļþ´óС£¨È磺10m£© autoextend ÊÇ·ñ×Ô¶¯Ôö³¤Îļþ´óС£¨on/off ......
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