Oracle 10g schedule jobµÄ³£ÓòÙ×÷
OracleÊý¾Ý¿â10g schedule jobµÄ³£ÓòÙ×÷:
-- job ȨÏÞ
grant create job to somebody;
-- job ´´½¨
begin
dbms_scheduler.create_job (
job_name => 'AGENT_LIQUIDATION_JOB',
job_type => 'STORED_PROCEDURE',
job_action => 'AGENT_LIQUIDATION.LIQUIDATION', --´æ´¢¹ý³ÌÃû
start_date => sysdate,
repeat_interval => 'FREQ=MONTHLY; INTERVAL=1; BYMONTHDAY=1;BYHOUR=1;BYMINUTE=0;BYSECOND=0', -- °´Ô£¬¼ä¸ôΪ1¸ö(ÔÂ),ÿÔÂ1ºÅ,Á賿1µã
comments => 'Ö´ÐдúÀíÉÌÇå·Ö³ÌÐò'
);
end;
/
-- job Ö´ÐÐʱ¼ä²âÊÔ
DECLARE
start_date date;
return_date_after date;
next_run_date date;
BEGIN
start_date := sysdate;--to_timestamp_tz('10-OCT-2004 10:00:00','DD-MM-YYYY HH24:MI:SS');
return_date_after := start_date;
FOR i IN 1..10 LOOP
DBMS_SCHEDULER.EVALUATE_CALENDAR_STRING('FREQ=MONTHLY; INTERVAL=1; BYMONTHDAY=1;BYHOUR=1;BYMINUTE=0;BYSECOND=0',start_date, return_date_after, next_run_date);
DBMS_OUTPUT.PUT_LINE('next_run_date: ' || to_char(next_run_date,'yyyy-mm-dd HH24:MI:SS'));
return_date_after := next_run_date;
END LOOP;
END;
/
-- job ²éѯ
select owner, job_name, state from dba_scheduler_jobs;
select job_name, state from user_scheduler_jobs;
-- job ÆôÓÃ
begin
dbms_scheduler.enable('BACKUP_JOB');
end;
/
-- job ÔËÐÐ
begin
dbms_scheduler.run_job('COLA_JOB',TRUE); -- true´ú±íͬ²½Ö´ÐÐ
end;
/
-- job Í£Ö¹(²»Ì«ºÃÓÃ)
begin
dbms_scheduler.stop_job(job_name => 'COLA_JOB',force => TRUE);
end;
/
-- job ɾ³ý(¶ÔÍ£jobÀ´ËµºÃÓÃ)
begin
dbms_scheduler.drop_job(job_name => 'COLA_JOB',force => TRUE);)
end;
/
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MySQL:
SELECT column from table
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SELECT column from table
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Microsoft SQL Server:
SELECT TOP 1 column from table
ORDER BY NEWID()
IBM DB2
SELECT column, RAND() as IDX
from table
ORDER BY IDX FETCH FIRST 1 ROWS ONLY
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