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 1.ʹÓÃCreate Function Óï¾ä´´½¨
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     Create or replace Function  º¯ÊýÃû[²ÎÊýÁбí]
     Return  Êý¾ÝÀàÐÍ
IS|AS
            ¾Ö²¿±äÁ¿
     Begin
            ¿ÉÖ´ÐÐÓï¾ä
    
end£»
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        ʹÓÃPL/SQL¿é
       
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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  
±àÒëʱ³ö´íµÄÊý¾Ý×Ö
µä£ºuser_errors;
»ò show errors£»
select * from user_source from where
name='GETNAME';  --×¢Òâ´óд
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OleDbConnectioncon=newOleDbConnection(cnnstr);
try
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con.Open();
}
catch
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OleDbCommandcmd=newOleDbCommand(strSQL,con);
System.Data.OleDb.OleDbDataReaderdr=cmd.ExecuteReader();
while(dr.Read())
 
{
stringdd=dr["gggg"].ToString();
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stringstr;
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select p.spid,
       a.serial#,
       c.object_name,
       b.session_id,
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  from v$proces ......

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