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Create or replace Function º¯ÊýÃû[²ÎÊýÁбí]
Return Êý¾ÝÀàÐÍ
IS|AS
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Begin
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end£»
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create or replace function
GetName(sNo varchar2)
return varchar Is --²»ÄÜÖ¸¶¨¾«¶È
name
varchar(12);
Begin
select ename into name from emp
where empno=sNo;
return name;
Exception
when
Too_many_rows then
DBMS_output.put_line('·µ»ØÖµ¶àÓàÒ»Ìõ');
when
Others then
DBMS_output.put_line('ÔÚÖ´Ðк¯ÊýGetNameʱ³öÏÖÒâÍâ´íÎó!');
End;
/
µ÷ÓÃ
declare
name varchar(12);
begin
name:=getname('7369');
DBMS_output.put_line('½á¹ûΪ:'||name);
end;
/
Êý¾Ý×ֵ䣺user_source
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µä£ºuser_errors;
»ò show errors£»
select * from user_source from where
name='GETNAME'; --×¢Òâ´óд
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c:\>sqlplus "sys/test1234 as sysdba" ÒÔsysdbaÉí·ÝµÇ¼
c:\>sqlplus/nolog ÒÔnologÉí·ÝµÇ¼
sql> connect sys/test1234 as sysdba
Connected.
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SQL> startup &nb ......
-- get all dictionary for oracle db
select * from dict;
--select * from dictionary;
-- get all columns for dictionarys
select * from dict_columns;
-- get the default name-space for current user
select username,default_tablespace from user_users;
-- get roles for current user
select * from us ......
alter system kill session'50,492';
--ÒÔϼ¸¸öΪÏà¹Ø±í
SELECT * from v$lock;
SELECT * from v$sqlarea;
SELECT * from v$session;
SELECT * from v$process ;
SELECT * from v$locked_object;
SELECT * from all_objects;
SELECT * from v$session_wait; ......
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