PROCEDURE Broken (job IN binary_integer, Broken IN boolean, next_date IN
DBMS_Job包的用法
包含以下子过程:
Broken()过程。
change()过程。
Interval()过程。
Isubmit()过程。
Next_Date()过程。
Remove()过程。
Run()过程。
Submit()过程。
User_Export()过程。
What()过程。
1、
Broken()过程更新一个已提交的工作的状态,典型地是用来把一个已破工作标记为未破工作。
这个过程有三个参数:job 、broken与next_date。
PROCEDURE Broken (job IN binary_integer,
Broken IN boolean,
next_date IN date :=SYSDATE)
job参数是工作号,它在问题中唯一标识工作。
broken参数指示此工作是否将标记为破——TRUE说明此工作将标记为破,,而FLASE说明此工作将标记为未破。
next_date参数指示在什么时候此工作将再次运行。此参数缺省值为当前日期和时间。
2、
Change()过程用来改变指定工作的设置。
这个过程有四个参数:job、what 、next_date与interval。
PROCEDURE Change (job IN binary_integer,
What IN varchar2,
next_date IN date,
interval IN varchar2)
此job参数是一个整数值,它唯一标识此工作。
What参数是由此工作运行的一块PL/SQL代码块。
next_date参数指示何时此工作将被执行。
interval参数指示一个工作重执行的频度。
3、
Interval()过程用来显式地设置重执行一个工作之间的时间间隔数。
这个过程有两个参数:job与interval。
PROCEDURE Interval (job IN binary_integer,
Interval IN varchar2)
job参数标识一个特定的工作。interval参数指示一个工作重执行的频度。
4、
ISubmit()过程用来用特定的工作号提交一个工作。
这个过程有五个参数:job、what、next_date、interval与no_parse。
PROCEDURE ISubmit (job IN binary_ineger,
What IN varchar2,
next_date IN date,
interval IN varchar2,
no_parse IN booean:=FALSE)
这个过程与Submit()过程的唯一区别在于此job参数作为IN型参数传递且包括一个
由开发者提供的工作号。如果提供的工作号已被使用,将产生一个错误。
5、
Next_Date()过程用来显式地设定一个工作的执行时间。这个过程接收两个参数:job与next_date。
PROCEDURE Next_Date(job IN binary_ineger,
next_date IN date)
job标识一个已存在的工作。next_date参数指示了此工作应被执行的日期与时间。

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Yes,youcansearchinsideaBLOBinMySQLusingspecifictechniques.1)ConverttheBLOBtoaUTF-8stringwithCONVERTfunctionandsearchusingLIKE.2)ForcompressedBLOBs,useUNCOMPRESSbeforeconversion.3)Considerperformanceimpactsanddataencoding.4)Forcomplexdata,externalproc


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