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×ÜÖ®£¬EXP/IMPµÄʱºòÐèÒª¿¼ÂÇJOB£¬²¢ÔÚ²Ù×÷½áÊøºó¼ì²éJOBÐÅÏ¢ÊÇ·ñÒѾ­ÕýÈ·µÄµ¼Èë¡£
±¾Îĸø´ó¼Ò½éÉÜÒ»ÏÂORACLE jobµÄʹÓ÷½·¨£º
Õâ¸öjob Ö´ÐеŦÄÜ: ÏòijÕűíÖж¨Ê±²åÈëÒ»Ìõ¼Ç¼(±ÈÈçÒ»·ÖÖÓ²åÈëÒ»Ìõ)
step 1: Ê×ÏÈ´´½¨Ò»Õűí a,
create table a(a date);
step 2: ´´½¨Ò»¸öproc test ,Õâ¸ö test ¾ÍÊÇÈ¡³öϵͳµÄµ±Ç°Ê±¼äÖµ,È»ºó²åÈëµ½ a ±íÖÐ
SQL> create or replace procedure test as
begin
insert into a values(sysdate);
end;
/
step 3: ´´½¨Ò»¸öjob,Õâ¸öjobÉèÖÃΪÿ·ÖÖÓÔËÐÐÒ»´Î,Ò²¾ÍÊÇÿ·ÖÖÓµ÷ÓÃÒ»ÏÂÉÏÃæµÄ test,Õâ¸ö proc
SQL> variable job1 number;
SQL>
SQL> begin
dbms_job.submit(:job1,'test;',sysdate,'sysdate+1/1440');¡¡¡¡--ÿÌì1440·ÖÖÓ£¬¼´Ò»·ÖÖÓÔËÐÐtest¹ý³ÌÒ»´Î
end;
/
step 4:È¥ÔËÐÐÉÏÃæ´´½¨ºÃµÄ job
SQL> begin
dbms_job.run(:job1);
end;
/
[×¢]:¹ý¼¸·ÖÖÓºó Óà select to_char(a,'yyyy/mm/dd hh24:mi:ss')from a; È¥²é¿´ a ±í,·¢ÏÖ¶àÁ˼¸Ìõ¼þ¼Ç¼,Õâ¾Í˵Ã÷ÁË job Õý³£¹¤×÷ÁË
Èç¹ûҪɾ³ýÕâ¸ö job ¿ÉÒÔÓÃ:
SQL> begin
dbms_job.remove(:job1);
end;
/
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SELECT * from
(
SELECT A.*, ROWNUM RN
from (SELECT * from TABLE_NAME) A
WHERE ROWNUM <= 40
)
WHERE RN >= 21
ÆäÖÐ×îÄÚ²ãµÄ²éѯSELECT * from TABLE_NAME±íʾ²»½øÐз­Ò³µÄԭʼ²éѯÓï¾ä¡£ROWNUM <= 40ºÍRN >= 21¿ØÖÆ·ÖÒ³²éѯµÄÿҳµÄ·¶Î§¡£
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Oracle SQLʵÀý

1¡£select * from a where a.rowid=(select min(b.rowid) from b where a.id=b.id);
create test1(
nflowid number primary key, 
ndocid number,
drecvdate date);
insert into test1 values (1, 12301, sysdate) ;
insert into test1 values (2, 12301, sysdate);
select * from test1 order by drecvdate:
......
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