在本篇文章中,我們主要介紹參數(shù)類型的內(nèi)容,自我感覺有個(gè)不錯(cuò)的建議和大家分享下

    現(xiàn)有一個(gè)參數(shù)為date類型的存儲(chǔ)：
  

    create or replace procedure t_pro(t_var in date)

as

begin

     dbms_output.put_line(TO_CHAR(T_VAR,'YYYY'));

     --dbms_output.put_line(T_VAR);

end;

/
  

????job的實(shí)現(xiàn)代碼為：

    begin

	dbms_scheduler.create_job(

		job_name => 'FFFF',

		job_type => 'STORED_PROCEDURE',

		job_action => 'T_PRO',

		number_of_arguments => 1, 

		repeat_interval => 'FREQ=DAILY;INTERVAL=3', 

	    enabled => FALSE

		); 

end;

/
  

????其中參數(shù)?job_type => 'STORED_PROCEDURE' 表現(xiàn)該job執(zhí)行的是一個(gè)存儲(chǔ)進(jìn)程類型，參數(shù)?job_action => 'T_PRO' 表現(xiàn)執(zhí)行的是個(gè)一哪存儲(chǔ)進(jìn)程（說白了就是存儲(chǔ)的名字）以下為官方檔文對(duì)該參數(shù)釋解：

????The action is the name of the stored procedure. You have to specify the schema if the procedure resides in another schema than the job. If case sensitivity is needed, enclose the schema name and the store procedure name in double quotes. For example, job_action_action=> '" Schema "." Procedure " ' . PL/SQL procedures with INOUT or OUT arguments are not supported as job_action when the job or program type is STORED_PROCEDURE .
官方檔文要求 用戶名.存儲(chǔ)名字? 這樣寫！而且存儲(chǔ)進(jìn)程中有 輸入輸出和輸出參數(shù)時(shí)，job_type的值都不能為? STORED_PROCEDURE。當(dāng)然沒有了job_type參數(shù)，job_acton也不被持支了！

???? 參數(shù)?number_of_arguments => 1 代表該job的執(zhí)行程序（本例就是T_PRO）的參數(shù)個(gè)數(shù)（ T_PRO的個(gè)數(shù)為 1 ）。該參數(shù)必要須設(shè)置！起官方檔文的釋解為：This attribute specifies the number of arguments that the job expects. The range is 0-255, with the default being 0.

???? 參數(shù)?repeat_interval => 'FREQ=DAILY;INTERVAL=3'表現(xiàn)天天的3點(diǎn)為執(zhí)行該job的時(shí)光！該參數(shù)怎么設(shè)置請(qǐng)考參官方檔文

???? 參數(shù)?enabled => FALSE 表現(xiàn)否是用啟該job。這里要設(shè)置為 FALSE? , 注意大小寫！

???? job定義完成后，就要給該job的參數(shù)設(shè)定值了：

    begin

	DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE (           

		job_name => 'FFFF',                     

		argument_position => 1,                                                   

		argument_value => SYSDATE

		);   

end;

/
  

????參數(shù)?argument_position => 1 表現(xiàn)的是 該job的參數(shù)的位置，如果job中參數(shù)有多個(gè)，寫為2,3,4....次依遞增1。注意：有如多個(gè)參數(shù)要須制訂要須這樣寫

    begin

	DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE (           

		job_name => 'FFFF',                     

		argument_position => 1,                                                   

		argument_value => SYSDATE

		);   

		DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE (           

		job_name => 'FFFF',                     

		argument_position => 2,                                                   

		argument_value => val2

		);  

		DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE (           

		job_name => 'FFFF',                     

		argument_position => 3,                                                   

		argument_value => val3

		); 

	    ......

end;

/
  

????參數(shù)?argument_value => SYSDATE 表現(xiàn)你要傳入的值的定義。該參數(shù)官網(wǎng)釋解為：

????

????

    EXEC DBMS_SCHEDULER.ENABLE('FFFF');

EXEC DBMS_SCHEDULER.RUN_JOB('FFFF');
  

    SQL> select VERSION from v$instance;



VERSION

-----------------

11.2.0.1.0