oracle ×Ô¶¯Ôö³¤ÁÐ Àý×Ó
--´´½¨ÐòÁÐ
create sequence innerid
minvalue 1
maxvalue 999999999
start with 1
increment by 1
cache 20
order;
--´´½¨±í
create table users(
userid int primary key,
username varchar2(20),
userpwd varchar2(20)
);
select * from users;
insert into users values(innerid.nextval,'zhangsan','123');
insert into users values(innerid.nextval,'lisi','123');
insert into users values(innerid.nextval,'wangwu','123');
--´´½¨´¥·¢Æ÷
create or replace trigger users_id
before insert on users for each row
begin
select innerid.nextval into :new.userid from dual;
end users_id;
insert into users(username,userpwd) values('zhaoliu','123');
select * from users;
commit;
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1¡¢ÔÚ±¾»ú69ÉÏ´´½¨Êý¾Ý¿âorcl £¬global_name=orcl£¬Ê¹ÓÃÓï¾ä
alter database rename global_name to orcl.us.oracle.com ÐÞ¸ÄÊý¾Ý¿âµÄÈ«¾ÖÊý¾Ý¿âÃûΪorcl.us.oracle.com
2¡¢ÔÚÐé»ú188ÉÏ´´½¨Êý¾Ý¿âviotest£¬global_name=viotest£¬Ê¹ÓÃÓï¾ä
alter database rename global_name to viotest.us.oracle.com ÐÞ¸ÄÊý¾Ý¿âµÄÈ«¾ÖÊ ......
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Function Fun_Split_Str(p_Str Varchar2, p_Division Varchar2, p_Seq Int)
Return Varchar2 Is
v_First Int;
v_Last Int;
Begin
If p_Seq < 1 Then
&nbs ......
1.´´½¨²âÊÔ±í
create table users(
userid int primary key,
username varchar2(20),
userpwd varchar2(20)
);
insert into users values(1,'test','test');
insert into users values(2,'test','test');
insert into users values(3,'test','test');
insert into users values(4,'test','test');
insert i ......
select owner,sum(bytes)/1024/1024 sum_MB
from dba_segments
where tablespace_name='USERS' and owner like 'ZJ%'
group by owner
order by 2 desc;
SET NEWPAGE NONE HEADING OFF SPACE 0 PAGESIZE 0 TRIMOUT ON TRIMSPOOL ON LINESIZE 25 ......
--¶¨ÒåÊý¾Ý¿âÁ¬½Ó·Ö·¢Æ÷
alter system set dispatchers='(PROTOCOL=TCP)(SERVICE=imapdb)(DISPATCHERS=5)(PROTOCOL=IPC)(DISPATCHERS=5)' scope=spfile;
--¶¨Òå¹²Ïí·þÎñÊý
alter system set shared_servers=20 scope=spfile;
--¶¨Òå¹²Ïí·þÎñµÄsessionÊý
alter system set shared_server_sessions=1024 scope=spfile;
......