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1.¶¨ÒåÓαê
cursor ÓαêÃû is selectÓï¾ä;
2.´ò¿ªÓαê
open ÓαêÃû;
3.ÌáÈ¡ÓαêÊý¾Ý
fetch ÓαêÃû into ±äÁ¿Ãû1, ±äÁ¿Ãû2, ....;
»ò
fetch ÓαêÃû into ¼Ç¼ÐͱäÁ¿Ãû;
4.¹Ø±ÕÓαê
close ÓαêÃû;
5.ÓαêµÄÊôÐÔ
%isopen
¸ÃÊôÐÔ±êʶÓαêÊÇ·ñ´ò¿ª£¬Èç¹ûûÓдò¿ªÓαê¾ÍʹÓÃfetchÓï¾ä½«Ìáʾ´íÎó¡£
%isfound
¸ÃÊôÐÔ±êʶһ¸öfetchÓï¾äÊÇ·ñÓÐÖµ£¬ÓÐÖµ·µ»Øtrue£¬·ñÔò·µ»Øfalse¡£
%notfound
¸ÃÊôÐÔÓë%isfoundÏà·´¡£
%rowcount
¸ÃÊôÐÔÓÃÓÚ»ñÈ¡ÓαêµÄÊý¾ÝÐÐÊý¡£
ʾÀý£º
set serveroutput on
declare
  tempsal scott.emp.sal%type;
  cursor mycursor is
    select * from scott.emp
    where sal>tempsal;
  cursorrecord mycursor%rowtype;
begin
  tempsal:=800;
  open mycursor;
  if mycursor%isopen then
    fetch mycursor into cursorrecord;
    dbms_output.put_line(to_char(cursorrecord.deptno));
    dbms_output.put_line(to_char(mycursor%rowcount));
  else
    dbms_output.put_line('Óα껹δ´ò¿ª');
  end if;
end;


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linq to sql ÖдÓdbmlÎļþÖд´½¨Êý¾Ý¿â

        ½ñÌìºÜÓôÃÆ,ʵÑéÊҵķþÎñÆ÷¶«Î÷¶¼Ã»ÓÐÁË,¶øÎÒµÄÊý¾Ý¿âÓÖÔÚÄÄÀï,ÎÒÓÖûÓб¸·Ý,°ÑÎÒÒÖÓôµÄÒªÃü,ÐÒ¿÷ÎÒÓõÄlinq to sql.×ÐϸÏëÏë,ËûµÄdbmlÎļþ»ù±¾°üº¬ÁËÊý¾Ý¿âµÄËùÓÐÄÚÈÝ,ËùÒÔ,Ò»¶¨Óа취´ÓdbmlÎļþÖд´½¨Êý¾Ý¿â!
        Ñо¿ÁËÒ»¶ÎÊ ......

sql server·ÃÎÊÔ¶³ÌÊý¾Ý¿â

--´´½¨Á´½Ó·þÎñÆ÷
exec sp_addlinkedserver   'ITSV ', ' ', 'SQLOLEDB ', 'Ô¶³Ì·þÎñÆ÷Ãû»òipµØÖ· '
exec sp_addlinkedsrvlogin 'ITSV ', 'false ',null, 'Óû§Ãû ', 'ÃÜÂë '
--²éѯʾÀý
select * from ITSV.Êý¾Ý¿âÃû.dbo.±íÃû
--µ¼ÈëʾÀý
select * into ±í from ITSV.Êý¾Ý¿âÃû.dbo.±íÃû
--ÒÔºó²» ......

³¬¼¶SQL——ÔÚSQLÖÐÀÛ¼Ó

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  jmbdat         dayt           y           &n ......

PL/SQLѧϰ±Ê¼ÇÈý


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1.1 if .. then .. end if
if Ìõ¼þ then
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end if;
1.2 if .. then .. else .. end if
if Ìõ¼þ then
    Óï¾ä¶Î£»
else 
    Óï¾ä¶Î£»
end if;
1.3 ifǶÌ×
2.Ñ­»·¿ØÖÆ
2.1 loop .. exit .. end loop
loop  
   & ......
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