Oracle EBS fnd_request.submit_request 与 Fnd_concurrent.wait_for_ruqest

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1、关于fnd_request.submit_request的用法
fnd_request.submit_request
的用法:
FND_REQUEST.SUBMIT_REQUEST 
函数是用来提交一个请求的,它返回一个NUMBER.具体调用如下 

:result := fnd_request.submit_request(application CHAR, --AP模快 
program CHAR, --应用程序 
description CHAR, --请求说明(可选
start_time CHAR, --RUN 时间(可选
sub_request BOOLEAN, --立刻提交请求 
argument1 CHAR, --参数
argument2 CHAR, --参数
argument3 CHAR, --参数
argument4 CHAR, --参数
argument5 CHAR, --参数5....... 
argument100 CHAR); 

英文说明(zt oracle) : 
Parameters are as follows:

application - Short name of the application associated with the concurrent 
request to be submitted.

program - Short name of the concurrent program (not the executable) for which 
the request should be submitted.

description - Description of the request that is displayed in the Concurrent 
Requests form (Optional.)

start_time - Time at which the request should start running, formatted as HH24: 
MI or HH24:MI:SS (Optional.)

sub_request - Set to TRUE if the request is submitted from another request and 
should be treated as a sub-request.

argument1...100 - Arguments for the concurrent request; up to 100 
arguments are permitted. If submitted from Oracle Forms, you must specify all 
100 arguments.

补充说明:
  在用fnd_request.submit_request的时候,第五个参数用false,不要被参数名称误导;这个函数有105个参数,前面五个定义请求本身,后面100个是传递给请求的具体参数,都是Char类型,我们需要转换,默认值是chr(0),代表这个参数不用传递给调用的请求;
  在Package里面调用只需要传递需要的参数个数,因为它有默认值指示结束;
  在form里面则不行,要写满105个,而且我们参数结束之后要用一个chr(0)来表示结束


fnd_request.submit_request('AR',
'SVAINEX_P',
'',
'', 
FALSE,
:parameter.invoice_store,
chr(0),
'','','',
'','','','','','','','','','','','','','','','','','','','',
'','','','','','','','','','','','','','','','','','','','',
'','','','','','','','','','','','','','','','','','','','',
'','','','','','','','','','','','','','','','','','','','',
'','','','','','','','','','','','','','','');

例如:

 1 --submit the request
 2      l_req_id_fee := fnd_request.submit_request('PO',
 3                                                 'REQIMPORT',
 4                                                 '',
 5                                                 '',
 6                                                 FALSE,
 7                                                 'POP_REQUEST',
 8                                                 to_char(SYSDATE, 'YYYYMMDD'),
 9                                                 'ALL',
10                                                 '',
11                                                 'N',
12                                                 'N');
13      
14      if (l_req_id_fee is nullor (l_req_id_fee = 0then
15         raise l_submit_req;
16      else
17         --提交请求
18         COMMIT;
19         --更新状态(只有请求成功,状态才更改)
20         UPDATE hek_om_pop_headers_all
21         SET flow_status = 'reg_purchase'
22         --select * from hek_om_pop_headers_all
23         WHERE header_id IN (SELECT h.header_id
24                               FROM hek_om_pop_headers_v h
25                              WHERE h.flow_status = 'wait');
26         COMMIT;         
27      end if;
28
29

2Oracle Erp等待报表运行机制

主要是用到了Fnd_concurrent.wait_for_ruqest这个function.
Fnd_concurrent.wait_for_request
返回Boolean值,主要参数如下:
function FND_CONCURRENT.WAIT_FOR_REQUEST
(request_id IN number default NULL, --
请求ID
interval IN number default 60, --
检查时间间隔
max_wait IN number default 0, --
最大等待时间
phase OUT varchar2, 
status OUT varchar2, 
dev_phase OUT varchar2, --
请求运行阶段
dev_status OUT varchar2, --
各个阶段状态
message OUT varchar2 --
运行完成后输出信息
return boolean;

dev_phasePending,Running,Complete,Inactive等几种,每种对应不同的Dev-Status,比如Complete阶段后就有Normal,Error,Warning,Cancelled,Terminated等几种状态。

例如:

 1l_request_status := Fnd_Concurrent.Wait_For_Request(l_request_id,
 25,
 30,
 4l_phase,
 5l_status,
 6l_dev_phase,
 7l_dev_status,
 8l_message);
 9
10IF l_request_status THEN
11IF l_dev_status = 'NORMAL' THEN
12NULL;
13ELSE
14Fnd_Message.Debug('请求运行不成功:'||l_dev_status);
15RETURN;
16END IF;
17ELSE
18Fnd_Message.Debug('请求未完成,无法查看报表内容!');
19RETURN;
20END IF;
21
22Editor_Pkg.Report(l_request_id,'Y');
23

总结:FND_REQUEST.SUBMIT_REQUEST是一种通过后台方式提交请教的方法,可以在pkgform中使用,在form中使用要将参数写全。FND_CONCURRENT.WAIT_FOR_REQUEST是一个等待当前请求运行完毕的程序,可以利用这个等待当前的请求程序运行完毕再运行下面的程序。


3、有时候提交请求一直会返回0的情况:检查是否有初始化环境:

3.1、在PLSQL中设定初始的方法 

SELECT user_id
  INTO l_num_user_id
  FROM applsys.fnd_user
 WHERE user_name ='user_name';


SELECT responsibility_id
  INTO l_num_resp_id
  FROM apps.fnd_responsibility_vl
 WHERE responsibility_name ='responsibility_name';


SELECT application_id
  INTO l_num_resp_appl_id
  FROM applsys.fnd_application
 WHERE application_short_name = 'app_short_name';



fnd_global.apps_initialize (user_id  => l_num_user_id,
                            resp_id  => l_num_resp_id,
                            resp_appl_id => l_num_resp_appl_id);

3.2、在Form设定初始的方法 

-- 可直接引用全局变量 
fnd_global.apps_initialize (user_id      => FND_GLOBAL.APPS_INITIALIZE(FND_GLOBAL.USER_ID,

                            resp_id      => FND_GLOBAL.RESP_ID,

                            resp_appl_id => FND_GLOBAL.RESP_APPL_ID);



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