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Oracle Job Óï·¨ºÍʱ¼ä¼ä¸ôµÄÉ趨

³õʼ»¯Ïà¹Ø²ÎÊýjob_queue_processes
alter system set job_queue_processes=39 scope=spfile;//×î´óÖµ²»Äܳ¬¹ý1000 ;job_queue_interval = 10 //µ÷¶È×÷ҵˢÐÂÆµÂÊÃëΪµ¥Î»
job_queue_process ±íʾoracleÄܹ»²¢·¢µÄjobµÄÊýÁ¿£¬¿ÉÒÔͨ¹ýÓï¾ä¡¡¡¡
show parameter job_queue_process;
À´²é¿´oracleÖÐjob_queue_processµÄÖµ¡£µ±job_queue_processֵΪ0ʱ±íʾȫ²¿Í£Ö¹oracleµÄjob£¬¿ÉÒÔͨ¹ýÓï¾ä
ALTER SYSTEM SET job_queue_processes = 10;
À´µ÷ÕûÆô¶¯oracleµÄjob¡£
Ïà¹ØÊÓͼ£º
dba_jobs
all_jobs
user_jobs
dba_jobs_running °üº¬ÕýÔÚÔËÐÐjobÏà¹ØÐÅÏ¢
 
£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­
Ìá½»jobÓï·¨£º
begin
sys.dbms_job.submit(job => :job,
                      what => 'P_CLEAR_PACKBAL;',
                      next_date => to_date('04-08-2008 05:44:09', 'dd-mm-yyyy hh24:mi:ss'),
                      interval => 'sysdate+ 1/360');
commit;
end;
/
 
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´´½¨JOB
variable jobno number;
begin
dbms_job.submit(:jobno, 'P_CRED_PLAN;',SYSDATE,'SYSDATE+1/2880',TRUE);
commit;
ÔËÐÐJOB
SQL> begin
         dbms_job.run(:job1);
         end;
         /
ɾ³ýJOB
SQL> begin
        dbms_job.remove(:job1);
        end;
        /
DBA_JOBS
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OracleµÄ³£ÓÃÃüÁî

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1.Êý¾Ý¿â¹ÜÀíÏà¹Ø

 
¡¡¡¡bbed.exe¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Êý¾Ý¿éä¯ÀÀºÍ±à¼­¹¤¾ß
¡¡¡¡dbv.exe¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Êý¾ÝÎļþÂß¼­¼ì²â¹¤¾ß
¡¡¡¡exp.exe¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Êý¾Ýµ¼³ö¹¤¾ß
¡¡¡¡imp.exe¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Êý¾Ýµ¼È빤¾ß
¡¡¡¡mig.exe¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Êý¾Ý¿âÒÆÖ²¹¤¾ß
¡¡¡ ......

Oracle ´æ´¢¹ý³ÌÖе÷ÓÃ×Ô¶¨ÒåµÄº¯ÊýÎÊÌ⣿

 ÎÒÏÖÔÚÔÚ×öÒ»¸öOracleÊý¾Ýµ¼È룬Ҫ½«EXCELÊý¾Ýµ¼Èëµ½OracleÊý¾Ý¿âÖУ¬ÏȶÁÈ¡Êý¾Ý£¬½«Êý¾Ý±£´æÔÚÒ»ÕÅÁÙʱ±íÖУ¬È»ºóµ¼Èë֮ǰ¶ÔÁÙʱ±íÖÐÊý¾ÝµÄÿ¸ö×Ö¶Î×öУÑ飬±ÈÈçÊý¾ÝÊÇ·ñΪÕûÊý£¬ÕûÊýµÄ×î´óλÊý£¬¼°µ¼ÈëµÄÊý¾ÝÔÚÔ­Êý¾Ý¿âÖÐÊÇ·ñÒѾ­´æÔڵȣ¬ÎÒдÁËÒ»¸ö´æ´¢¹ý³Ì£¬¶ÔÒì³£µÄÊý¾Ý£¬½«×ֶΓis_checked”ÉèΪÒì³ ......

Oracleѧϰ±Ê¼Çժ¼1

 1.create alter insert update selectµÈ
ÈçºÎ½¨±í
   ѧÉú±ístudent
        create table student( --ѧÉú±í
           xh number(4), --ѧºÅ
           ......

oracle·ÖÒ³²éѯ

OracleµÄ·ÖÒ³²éѯÓï¾ä»ù±¾ÉÏ¿ÉÒÔ°´ÕÕ±¾Îĸø³öµÄ¸ñʽÀ´½øÐÐÌ×Óá£
·ÖÒ³²éѯ¸ñʽ£º
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 ......
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