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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
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%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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C#ÖвÙ×÷OracleʱµÄSQLÓï¾ä²ÎÊýµÄÓ÷¨
OracleTransaction myTrans ;
conn.Open();
myTrans =conn.BeginTransaction(IsolationLevel.ReadCommitted) ......
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Ñо¿ÁËÒ»¶ÎÊ ......
ALTER procedure [dbo].[sp_lock_check]
@spid1 int = NULL,
@spid2 int = NULL
as
set nocount on
if @spid1 is not NULL
begin
select ......
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¡¡¡¡DML—Êý¾Ý²Ù×ÝÓïÑÔ(SELECT£¬DELETE£¬UPDATE£¬INSERT)
¡¡¡¡DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
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