oracle ¶¨Ê±Ö´ÐÐÈÎÎñ job
1¸öʵÀý
create table tjob2(tt date);
´´½¨Ò»¸ö´æ´¢¹ý³Ì
create or replace procedure t26 is
begin
insert into tjob2 values(sysdate);
commit;
end t26;
´´½¨job£¬Ã¿·ÖÖÓÖ´ÐÐÒ»´Î
SQL> declare
2 tjob number;
3 begin
4 sys.dbms_job.submit(job => tjob,
5 what => 'T26;',
6 next_date => to_date('26-02-2010 15:34:28', 'dd-mm-yyyy hh24:mi:ss'),
7 interval => 'sysdate+1/1440');
8 commit;
9 end;
10 /
next_date ÊÇÆðʼʱ¼ä
interval => 'sysdate+1/1440');
ÖУ¬sysdateÊÇÖ´ÐеÄʱ¼ä£¬¸ù¾ÝsysdateÀ´ÉèÖÃÏ´εÄÖ´ÐÐʱ¼ä
Ïà¹ØÎĵµ£º
DBWn½ø³Ì¸ºÔð½«ÔàÊý¾Ý¿éдÈë´ÅÅÌ¡£ËüÊÇÒ»¸ö·Ç³£ÖØÒªµÄ½ø³Ì£¬Ëæ×ÅÄÚ´æµÄÔö¼Ó£¬Ò»¸öDBWn½ø³Ì¿ÉÄܲ»¹»ÓÃÁË¡£´Óoracle8iÆð£¬ÎÒÃÇ¿ÉÒÔΪϵͳÅäÖöà¸öDBWn½ø³Ì¡£³õʼ»¯²ÎÊýdb_writer_process¾ö¶¨ÁËÆô¶¯¶àÉÙ¸öDBWn½ø³Ì¡£Ã¿¸öDBWn½ø³Ì¶¼»á·ÖÅäÒ»¸öcache lru chain latch¡£
DBWn×÷Ϊһ¸öºǫ́½ø³Ì£¬ ......
OracleÊý¾Ý¿âÓÐÈýÖÖ±ê×¼µÄ±¸·Ý·½·¨£¬ËüÃÇ·Ö±ðÊǵ¼³ö£¯µ¼È루EXP/IMP£©¡¢Èȱ¸·ÝºÍÀ䱸·Ý¡£µ¼³ö±¸¼þÊÇÒ»ÖÖÂß¼±¸·Ý£¬À䱸·ÝºÍÈȱ¸·ÝÊÇÎïÀí±¸·Ý¡£
Ò»¡¢ µ¼³ö£¯µ¼È루Export£¯Import£©
ÀûÓÃExport¿É½«Êý¾Ý´ÓÊý¾Ý¿âÖÐÌáÈ¡³öÀ´£¬ÀûÓÃImportÔò¿É½«ÌáÈ¡³öÀ´µÄÊý¾ÝËͻص½OracleÊý¾Ý¿âÖÐÈ¥¡£
£±¡¢ ¼òµ¥µ¼³öÊý¾Ý£¨Export£©ºÍµ¼ÈëÊý¾ ......
Óα꣺
ÓÃÀ´²éѯÊý¾Ý¿â£¬»ñÈ¡¼Ç¼¼¯ºÏ£¨½á¹û¼¯£©µÄÖ¸Õ룬¿ÉÒÔÈÿª·¢ÕßÒ»´Î·ÃÎÊÒ»Ðнá¹û¼¯£¬ÔÚÿÌõ½á¹û¼¯ÉÏ×÷²Ù×÷¡£
·ÖÀࣺ
¾²Ì¬Óα꣺
·ÖΪÏÔʽÓαêºÍÒþʽÓαꡣ
REFÓα꣺
ÊÇÒ»ÖÖÒýÓÃÀàÐÍ£¬ÀàËÆÓÚÖ¸Õë¡£
ÏÔʽÓα꣺
CURSOR ÓαêÃû ( ²ÎÊý ) [·µ»ØÖµÀàÐÍ] IS
Select Óï¾ä
ÉúÃüÖÜÆÚ£º
1.´ò¿ªÓαê(OP ......
1. ²é¿´±í¿Õ¼äµÄÃû³Æ¼°´óС
select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size
from dba_tablespaces t, dba_data_files d
where t.tablespace_name = d.tablespace_name
group by t.tablespace_name;
2¡¢²é¿´±í¿Õ¼äÎïÀíÎļþµÄÃû³Æ¼°´óС
select tablespace_name, file_id, file_name,
round(byte ......