]]>
1.鐒跺悗杈撳叆緋葷粺鐢ㄦ埛鍚嶅拰瀵嗙爜
鐢ㄦ埛鍚?/span>/鍒涘緩琛ㄧ┖闂?/span>
create tablespace 琛ㄧ┖闂寸殑瀛樻斁璺緞,絀洪棿鐨勮嚜鍔ㄥ闀跨殑鍊兼槸10M
permanent online; --鍒涘緩鐢ㄦ埛
create user shi --鍒涘緩瀵嗙爜涓?/span>scj
default tablespace 榛樿琛ㄧ┖闂村悕
temporary tablespace temp --鍙?/span>profile琛ㄧ┖闂村悕; --鍒涘緩瑙掕壊
create role 瀵嗙爜;
5.瑙掕壊鍚嶏紱--瑙掕壊鍚?/span> to 鎶婅鑹叉巿浜堢敤鎴?/span>
6.緇?/span>shi緇?/span>shi瀵熺湅褰撳墠鐢ㄦ埛涓嬬殑鎵鏈夎〃
8.select tablespace_name from user_tablespaces; 琛ㄧ┖闂?/span>
9.select username from dba_users;蹇呴』鐢?/span>sys as sysdba鍒涘緩琛?/span>
create table 琛ㄧ┖闂村悕 --琛ㄧ殑鍒濆鍊?/span>
minextents 1 --鏈澶ф墿灞曞?/span>
);
11.--琛ㄦ坊鍔犱富閿拰绱㈠紩
alter table users
add constraint pk primary key (ID);
12.琛ㄦ坊鍔犲閿?/span>
alter table users
add constraint fk_roleid foreign key (roleid)
references role(role_id) on delete cascad; --鏄垱寤虹駭鑱?/span>
13.琛ㄥ悕錛?/span> --鍜?/span>id鎴彇瀛楃涓?/span>
select column(name,'琛ㄥ悕錛?/span> --涓殑‘鍘繪帀
15.鎵撳紑杈撳叆杈撳嚭錛堜笉鍐欑殑璇?/span>,鐨勫簲鐢?/span>
declare --澶嶈亴
a number:=0;
begin --寰幆
if((ccc mod 3)=0) then --鎵撳嵃鏄劇ず
a:=a+ccc;
end if; --緇撴潫寰幆
dbms_output.put_line(a);
end; --鐨勭敤娉?/span> --濮撳悕涓猴細(xì)'||name);
end;
/
18.灞炴у彲浠ュ湪榪愯鏃舵柟渚跨殑澹版槑璁板綍鍙橀噺鍜屽叾浠栫粨鏋?/span>
Set serveroutput on;
Declare
utype users%rowtype;
Begin
Select * into utype from users where id=20;
Dbms_output.put_line('鐢熸棩'|| utype.brithday);
end;
/ --%rowtype娓告爣鐨勫畾涔夊拰浣跨敤
Declare
Cursor ucur is select * from users; --瀹氫箟涓庢父鏍囨兂鍖歸厤鐨勫彉閲?/span>
Begin
Open ucur;--浣跨敤寰幆閬嶅巻娓告爣鐨勬煡璇㈢粨鏋?/span>
Dbms_output.put_line('鐢熸棩'||us.brithday);
Fetch ucur into us;
End loop;
Close ucur; --鍦ㄥ墠涓鏉＄殑fetch灞炴у間負(fù)true鍦ㄥ墠涓鏉?/span>fetch灞炴у間負(fù)true鍦ㄦ父鏍囨墦寮鏃?/span>%isopen錛涘惁鍒欎負(fù)false;
%rowcount鍒犻櫎
drop tablespace 鍒犻櫎琛ㄧ┖闂村拰閲岄潰鐨勫唴瀹?/span>
drop table 鍒犻櫎琛?/span>
drop user 鍒犻櫎鐢ㄦ埛
]]>