Data from AS-400

Hello,
I'm a beginning Oracle Developer and have my first small data base up and running. However, in order to promote Oracle to a fully-supported, enterprise application I need to learn how to get and present data from the AS400 mainframe in another location.
How do I learn to do this? We have AS400 programmers at the other location but I would I need to be able to develop without bothering them directly. Is it possible for me to write queries directly to the AS400 (via T1) or do I need to have those developers write code to dump reports that I can pick up? Any help is appreciated but I could really gain from knowing where to go or what books to read to understand how this works.
Thanks much,
Jerry

If an Oracle gateway to AS400 exists, you could write a Report against the objects located on the AS400. You connect reports to the Oracle database, and the gateway permits you to see remote objects (ie on the AS400) as though they were local. The other alternative is to get the data dumped out to a file, and then loaded in the Oracle database to enable you to report off it, amongst other things.
Regards
The Oracle Reports Team http://technet.oracle.com

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What is the fastest way to bulk load data from AS/400 to Oracle?

I have been asked to move data from AS/400 to Oracle11gR2 as fast as ODI possibly can. Just straight mapping, no transformation, no joining.
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Create a new FILE dataserver - the put the IP address in the 'Host', complete the user and password fields. Create a new 'physical schema' - badly named I know as there is no such thing. The Physical schema 'Data Schema' would point to the directory that you require. /usr/etc/data/ for example. set your work as well.
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Convert data from AS/400

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You can retrieve data from your database, and then perform some convertions between datacodifications.
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How to migrate the data in AS/400 to Oracle

I have a customer, they plan to migrate their data from AS/400 DB2 V5R3,V6R1 to Oracle 11g. Since the source system is in production, they can only halt for 48 hours,
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Hello,
An option would be to use the Database Gateway for DRDA. With this tool, all the data in the iSeries machine will be seen like an Oracle Table.
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INSERT INTO <Oracle_table> SELECT <col1, col2.....> FROM <iSeries_table>@AS400
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CREATE TABLE <oracle_table> AS SELECT * FROM <iSeries_table>@AS400
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Unable to extract data from an AS/400 system.

Hello experts.
We are trying to extract data from an AS/400 system but not having any success until now.
I´ll write down you the stepts that we have followed until now:
1.- Create a DB Connect between both systems
2.- Create a Source System from AS400 in the workbench under DB Connect Directory
3.- Generate datasources from tebles specified in the schema of the connection
break point -
At this point, we had a problem with some tables with at least one fieldname containing character "Ñ".
After asking some possible solutions to SAP, the told us this is not supported, as the system can´t have any object with character "Ñ", so the transfer structure was unable to activate with this fields in the datasource.
--- end of brek point --
4.- After those issues, we´ve decided to implement, in another schema, views from those tables which had the fieldnames with that character "Ñ", changing them to an "N".
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6.- To be able to see those views, in transaction RSDBC, we had to deactivate the two checkboxes in the first window ( Choose tables and Choose views) .
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Please, I would appreciate any help you could give us on this problem.
Thank you very much
Regards
Joaquin

I´d like ti add something to this thread, and maybe clarify a littel bit the question.
The only way that the BW system recognizes those logical tables, through transaction RSDBC is checking out the two boxes on this transaction, "Select Tables" and "Select Views".
I don´t know haw these logical tables have been created, bus does this mean that the are not neither tables or views as BW understand them.
Please, if someone knows anythin about this, answer to this thread.
Thank you very much.
Joaquin Sobrido

How to access data in AS 400 from Oracle database

Hi
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Hi
Please find the details given below....Any body can help me on this please....
Issue Description: The stock status report to be developed at SATN has some information that is currently calculated and stored in the Fox/pro system. A real time ODBC needs to be done to the AS/400 system to retrieve values for the respective fields. This has never been tested before as it impacts many areas.
The DBA team need to work to establish such a relationship and a report needs to be written in Oracle to have this tested on a real time basis. Mapping needs to be developed on the Oracle side to grab the correct fields

I transferred about 400 gigs of data from my MacBook Pro to my new iMac using Migration Assistant, but it doesn't show on Finder. How can I locate my data?

I transferred about 400 gigs of data from my MacBook Pro to my new iMac using Migration Assistant, but can't find any of my data on Finder. I'm thinking that the data got transferred but not cataloged. Finder shows about 400 gigs of my hard drive being used, but the files it shows don't come anywhere close to 400 gigs. How can I find out what is really on the hard drive and how can I access my MacBook files I transferred?

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Loading data from one table to another table

I need to load the data (data conversion) from one table to 3 different table.
I have to load the data from Source table to following 3 target tables.
So Consumer table has email pk and it has relationship with CONSUMER_RCV table and CONSUMER_RCV
table has relationship with CONSUMER_ATTR table. I am doing right now with pl/sql but I am looking
to use MULTI INSERT or SQL*LOADER or another efficient way.
I tried with MultiInsert but it getting failed as it's violating Unique Constraints as source table might contains
Duplicate emails.
Could you please show me how I can load the data efficiently?
Also I need to load in CONSUMER_ATTR table from CONTACT table which has ATTR1, ATTR2 columns.
so My mapping will be ...
Contact.email, first_name, last_name will go into Consumer table
then in CONSUMER_RCV, I generate the id column value by sequence, load email and DATE_CREATEd from contact table
And rest of the value is hard coded
Then in CONSUMER_ATTR table I will generate the CONSUMER_ATTR_id through sequence, for ID, will use the same
id column value which I have generated by sequence in CONSUMER_RCV, then put the attr_type = 'ATTR1' and for
attr_value column I will insert the value from contact table's ATTR1 value,
Then generate another CONSUMER_ATTR_ID, will use the same id column value which I have generated by sequence
in CONSUMER_RCV, then put the attr_type = 'ATTR2' and for
attr_value column I will insert the value from contact table's ATTR2 value,
Please let me know if you need further explanation.
I am using Oracle 9i R2.
Please consider CONTACT is Source table, CONSUMER is a Target1, CONSUMER_RCV is a Target2 and CONSUMER_ATTR is a Target3
to simplify the problem.
Following is the Table structure
=========================
CREATE TABLE CONTACT (
ID VARCHAR2 (40) NOT NULL, -- will go into Target1
EMAIL VARCHAR2 (100) ,      -- might be duplicate and will go into Target1 and Target2
FIRST_NAME VARCHAR2 (100) NOT NULL, -- will go into Target1
LAST_NAME VARCHAR2 (100) NOT NULL, -- will go into Target1
COUNTRY VARCHAR2 (40) NOT NULL, -- will go into Target1
PHONE VARCHAR2 (100), -- will go into Target1
NOTIFY VARCHAR2 (3), -- will go into Target2 table's RECEIVE_EMAIL column
CREATE_DATE DATE ,               -- will go into Target1 and target2
ATTR1 VARCHAR2 (400),           -- will go into Target3 as attr_type= ATTR1 and will load actual value in ATTR_VALUE
ATTR2 VARCHAR2(100),          -- will go into Target3 as attr_type= ATTR2 and will load actual value in ATTR_VALUE
ATTR2 VARCHAR2(100),          -- will go into Target3 as attr_type= ATTR1 and will load actual value in ATTR_VALUE
CONSTRAINT CONTACT_PK
PRIMARY KEY ( USER_ID ) ) ;
CREATE TABLE CONSUMER(
EMAIL VARCHAR2 (100) NOT NULL, -- PK
TITLE VARCHAR2 (40),
FIRST_NAME VARCHAR2 (40),
LAST_NAME VARCHAR2 (40),
ADDRESS1 VARCHAR2 (40),
ADDRESS2 VARCHAR2 (40),
CITY VARCHAR2 (30),
STATE          VARCHAR2 (30),
ZIP          VARCHAR2 (10),
COUNTRY VARCHAR2 (40),
PHONE VARCHAR2 (15),
DATE_CREATED DATE NOT NULL,
CONSTRAINT CONSUMER_PK
PRIMARY KEY ( EMAIL ) ) ;
CREATE TABLE CONSUMER_RCV (
ID                VARCHAR2 (40) NOT NULL,-- PK
EMAIL VARCHAR2 (100) NOT NULL,-- FK reference to Consumer
SITE VARCHAR2 (100) NOT NULL, -- default website
RECEIVE_EMAIL VARCHAR2 (1),
CREATE_DATE DATE NOT NULL,
CONSTRAINT CONSUMER_RCV_PK
PRIMARY KEY (ID) ) ;
ALTER TABLE CONSUMER_RCV ADD CONSTRAINT CONSUMER_RCV_FK
FOREIGN KEY (EMAIL)
REFERENCES CONSUMER (EMAIL) ;
CREATE TABLE CONSUMER_ATTR (
CONSUMER_ATTR_ID           VARCHAR2 (40) NOT NULL, -- PK
ID                     VARCHAR2 (40) NOT NULL, -- FK reference to COnsumer_RCV
ATTR_TYPE           VARCHAR2 (100) NOT NULL,
ATTR_VALUE           VARCHAR2 (4000) NOT NULL,
CONSTRAINT CONSUMER_ATTR_PK
PRIMARY KEY ( CONSUMER_ATTR_ID ) ) ;
ALTER TABLE CONSUMER_ATTR ADD CONSTRAINT CONSUMER_ATTR_FK
FOREIGN KEY (CONSUMER_ATTR_ID)
REFERENCES CONSUMER_RCV (ID) ;

HI Hema,
How are the entries related.. is it like for one entry in y table there are more than one entry in x table then you have to use loop with in loop , here are the both the conditions.
1) For each entry in Y there are more than one entries in X
sort y by quota trpid.
sort x by quota trpid.
loop at y.
loop at x where quota eq y-quota
                        and trpid eq y-trpid.
z-value = x-value.
append z.
endloop.
endloop.
2) For each y there is one entry in x table.
sort y by quota trpid.
sort x by quota trpid.
loop at y.
read table x with key quota = y-quota
                            trpid = y-trpid binary search.
if sy-subrc eq 0.
z-value = x-value.
append z.
Endif.
endloop.
Mahesh

Issue in Data from DSO to DSO Target with different Key

Hello All,
I am having Issue in Data from DSO to DSO Target with different Key
Source DSO has Employee + Wage + Post numner as key and Target has Employee + Wage Type as key.
DSO semantic grouping works like Group By clause in sql, is my understanding right ?
Also if someone can explain this with a small example, it would be great.
Many Thanks
Krishna

Dear, as explained earlier your issue has nothing to do with semantic grouping .
Semantic grouping is only usefull when you have written a routine in the transformation for calculations and in error handling .
Please go through this blog which explains very clearly the use of semantic grouping .
http://scn.sap.com/community/data-warehousing/netweaver-bw/blog/2013/06/16/semantic-groups-in-dtp
Now coming to your above question
DSO 1
Employee WageTyp Amount
100          aa          200
200          aa          200
100          bb          400
100          cc          300
If we have semantic group as Employee . If we have Employee as key of the target DSO and update type as summation .
then target DSO will have
Emp                Amount
100                 700
200                 200
In this case Wage type will be the last record arriving from the data package . If the record 100 cc 300 is arrivng last then wage type will be cc .
2) Case 2
DSO 1
Employee WageTyp Amount
100          aa          200
200          aa          200
100          bb          400
100          aa          300
if we do Semantic grouping with Emp and Wage Type   If we have Employee and wage type as key of the target DSO and update type as summation .
then target DSO will have
Emp     Wage      Amount
100          aa          500
200          aa          200
100          bb          400
Hope this helps .

Getting short dumps while reading bulky data from excel sheet

Hi all,
We have converted our non-unicode based sap system (R/3 4.7, Windows 2003,
SQL 2000) into a unicode based system recently. We are facing two peculiar
problems for last few days.
*Problem 1 - *Whenever we want to upload the data from excel sheet, the
system throws a dump after reading about 400 entries, while last week the
same system used to read about 8000 entries in a single go.
*Problem 2 - *Also, whenever we realease a transport requst from development
containing a lot of changes, the request will reach the quality system but
without the changes. but if i ll try to import the changes into quality
system after generating more than one request containing small small
changes, they get reflected in QAS immediately. Is there any size
constraint in transporting a request fro DEV->QAS->PRD.
Please suggest some ways.
I am pasting the dump (that I am getting while data uploading from Excel).
~~~~~~~~~~~~~~~~~~
Runtime errors
MESSAGE_TYPE_X*
Occurred on
22.02.2008 at
13:21:02*
The current application triggered a termination with a short dump.
What happened?
The current application program detected a situation which really
should not occur. Therefore, a termination with a short dump was
triggered on purpose by the key word MESSAGE (type X).
What can you do?
Print out the error message (using the "Print" function)
and make a note of the actions and input that caused the
error.
To resolve the problem, contact your SAP system administrator.
You can use transaction ST22 (ABAP Dump Analysis) to view and administer
termination messages, especially those beyond their normal deletion
date.
Error analysis
Short text of error message:
Control Framework : Error processing control
Technical information about the message:
Diagnosis
An error occurred when the system tried to process the commands
from the Automation Queue on the presentation server.
There are several possible reasons for this:
- The installation of the SAP GUI on the presentation server is
faulty or obsolete.
- There is an error in the application program
- There is an error in the SAPGUI or an integrated control
Procedure
1. Make sure that you have imported the appropriate Support
Package, the current kernel, and GUI patch for the release of your
System
2. Check whether the error occurs locally on one or a few PCs, or
generally on all PCs. Note whether the error only occurs for some
users, for example because of a specific Customizing setting.
If it only occurs locally, this suggests an installation problem
with the PC. Check the installation; if necessary, reinstall the
software. In the dump, search for the SY-MSGLI field, since it may
point to the cause of the error.
3. Activate the Automation Trace (in accordance with SAP Note
158985).
4.Start the transaction and continue until the screen immediately
before the dump.
5. From the System -> Utilities menu, choose Autom. Queue,
Synchronous Processing.
The status bar of the GUI displays the text:
"Automation synchron flush mode on"
6. If you now proceed with the application, the short dump will
display the ABAP call that caused the error; the Automation Trace
will contain the error on the presentation server.
7. If necessary, load the short dump and trace files on to
sapservX, so that SAP can analyze them.
Message classe...... "CNDP"
Number.............. 006
Variable 1.......... " "
Variable 2.......... " "
Variable 3.......... " "
Variable 4.......... " "
Variable 3.......... " "
Variable 4.......... " "
How to correct the error
Probably the only way to eliminate the error is to correct the program.
You may able to find an interim solution to the problem
in the SAP note system. If you have access to the note system yourself,
use the following search criteria:
"MESSAGE_TYPE_X" C
"SAPLOLEA" or "LOLEAU02"
"AC_SYSTEM_FLUSH"
If you cannot solve the problem yourself, please send the
following documents to SAP:
1. A hard copy print describing the problem.
To obtain this, select the "Print" function on the current screen.
2. A suitable hardcopy prinout of the system log.
To obtain this, call the system log with Transaction SM21
and select the "Print" function to print out the relevant
part.
3. If the programs are your own programs or modified SAP programs,
supply the source code.
To do this, you can either use the "PRINT" command in the editor or
print the programs using the report RSINCL00.
4. Details regarding the conditions under which the error occurred
or which actions and input led to the error.
System environment
SAP Release.............. "620"
Application server....... "nhbho930"
Network address.......... "192.168.0.30"
Operating system......... "Windows NT"
Release.................. "5.2"
Hardware type............ "4x Intel 801586"
Character length......... 16 Bits
Pointer length........... 32 Bits
Work process number...... 0
Short dump setting....... "full"
Database server.......... "NHBHO930"
Database type............ "MSSQL"
Database name............ "DEV"
Database owner........... "dev"
Character set............ "C"
SAP kernel............... "640"
Created on............... "Aug 17 2007 00:18:58"
Created in............... "NT 5.0 2195 Service Pack 4 x86 MS VC++ 13.10"
Database version......... "SQL_Server_8.00 "
Patch level.............. "196"
Patch text............... " "
Supported environment....
Database................. "MSSQL 7.00.699 or higher, MSSQL 8.00.194"
SAP database version..... "640"
Operating system......... "Windows NT 5.0, Windows NT 5.1, Windows NT 5.2,
Windows NT 6.0"
User, transaction...
Client.............. 300
User................ "NHBABAP"
Language key........ "E"
Transaction......... "SE38 "
Program............. "SAPLOLEA"
Screen.............. "SAPMSDYP 0010"
Screen line......... 0
Information on where terminated
The termination occurred in the ABAP program "SAPLOLEA" in
"AC_SYSTEM_FLUSH".
The main program was "ZBDC_CONTRACT ".
The termination occurred in line 29 of the source code of the (Include)
program "LOLEAU02"
of the source code of program "LOLEAU02" (when calling the editor 290).
~~~~~~~~~~~~~~~~~~~~~
Thank you all.
Cheers.
Mitra __.____._

for the 50 millionth time: Excel spreadsheets are NOT databases, you should NOT try to use them as such and NEVER access them using JDBC.
You should also under NO condition use the JDBC-ODBC bridge driver (that was actually the 78 millionth time that was told someone).

Is there any way to export IT Resource data from OIM using the export tool?

Hello,
we are trying to migrate an OIM development environment to a preproduction environment and we need to migrate more than 400 IT Resources. We have exported some IT Resources and when we imported them in the preproduction environment their data was not migrated. Is there any way to export IT Resource data from OIM using the export tool? Or is there any other way to do this without doing it by hand?
Thank you for your help
Kind Regards

Well , OIM doesnot provide any such facility to export ITResource data along with ITResource .
Directly updating the DB could be an option ..
Thanks

How do I extract Data from a 1D Waveform into individual channels to be used for calculations on a live data page

Hello All,
I am a fairly new user to Labview and am currently creating a program that: monitors sensor inputs from various CompactDAQ modules (9213, 9217), does error checking, then uses the data in some final calculations, such as averaging etc. I have put together a small piece of code that includes the main functions that I am trying to accomplish. Right now I am fairly comfortable with getting the channels set up and assigned, then passing this data into a while loop that continually pulls data from these sensors.
I have the calculations vi complete and the channel inputs UI complete, now I am working on the reading and data manipulation side of things. The 1D Waveform that is coming out of read function is being broken up into the components that I am interested in (String Name and Y data). It then pass this information out of the loop through a queue which passes it along to the parallel loop below which will perform the error checking and the averaging calculations. There are some things that complicate this. I have shown 2 sensors in my example, but in the actual program, there can be up to 400 inputs. The issue is that not all these sensors will be used on every test that the software is used for. To use the inputs in the test VI as an example: If I am trying to average these 2 inputs to create a common value, but then on one test, sensor 2 is not there, it needs to recognize this and not use this in the averaging function.
So to get right down to it, I want to create something that can look through the clusters of data from the 1D Waveform, determine what these values are, then do the necessary functions to those numbers once they are identified, then pass them onto the Calculations VI where it then displays the usable information for the user. I think I am having an issue with determing how to sort as everything I have thought of makes me think there has to be an easier way.
Has anyone encountered this? Does my explaination of what I am trying to do make sense? Let me know and I can clarify.
Solved!
Go to Solution.
Attachments:
Channel Testing.vi ‏43 KB

As far as functionality goes, I don't see anything wrong. when it comes to efficiency you need to keep some general pointers in mind. These issues which I'm bringing up will not affect your code currently since your array sizes are small but can start creating memory fragmentaion and slow down the software if your array sizes are much larger and the software runs for a long period of time.
1. Try not to use Build Array. Each time you use a built array labview creates a copy in the memory. Try to initilized your arrays and replace the subsets.
2. as much as you can try not index arrays or unbundle cluster multiple times. try to perform as many tasks as possbile in one shot. (this was evident in your second loop)
Besides that it's looking good.
I made a few modifications to your code and attached it. I wanted to give you a different take on it as it relates to being able to control the inputs and outputs programitically, if you had a look up table. I didn't make the same modifications to your second loop but I can guide you through what needs to be done if you would like to move in this direction. Again your original code is well done for someone who is new to labview so don't feel like you need to follow the new VI design. Just try to remove the build array and multiple indexing as a good programming habbit.
www.movimed.com - Custom Imaging Solutions
Attachments:
Channel Testing.vi ‏41 KB

Copyig Data from a TABLE MODEL (TABLE) TO A FILE

Hi guys,
I wont to copy data from a Default Table Model to a File can someone write a pease of code that will do that for me.
DefaultTableModel model = new DefaultTableModel();
JTable table;
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          JLabel welcome = new JLabel("Welcome to Thomas's Address Book v2.0.1");
          welcome.setFont(arial20);
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          JMenuBar mb = new JMenuBar();
          this.setJMenuBar(mb);
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          table = new JTable(model);
          this.add(table);
          JMenu fm = new JMenu("File");
          fm.setFont(arial20);
          mb.add(fm);
          //Menu Items
          JMenuItem Add = new JMenuItem("Add Record");
          Add.setFont(arial20);
          Add.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    addw a = new addw();
          fm.add(Add);
          //Import from a file
          JMenuItem inp = new JMenuItem("Import Records");
          inp.setFont(arial20);
          inp.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    //Opens Import Window.
                    inportw i = new inportw();
          fm.add(inp);
          JMenuItem quit = new JMenuItem("Exit");
          quit.setFont(arial20);
          fm.add(quit);
          quit.addActionListener(this);
class inportw extends JFrame
          //*Add Window Properties and Settings
          public inportw ()
               this.setSize(new Dimension(400, 150));
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               JLabel error_note = new JLabel("Error Here - Need to make table final!?");
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               binport.addActionListener(new ActionListener()
                    public void actionPerformed(ActionEvent e)
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A complete peace of code would be helpfull that would do this for me. Thankyou guys.

Rite then,
In answer to both post yes i have done my own homework if thats what you wont to call it.
And to the second post yes i have put in a File to export to. the code has not be pasted on my origanal post.
//Export Button - Export Window
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                    public void actionPerformed(ActionEvent e)
                         System.out.println("Export Pressed ");
                         try
                             FileWriter file = new FileWriter("AddressData.txt");
                            BufferedWriter out = new BufferedWriter(file);
                             out.write("AddressBook data File");
                            out.close();
                         catch (Exception ei)
                         System.err.println("Error: " + ei.getMessage());
               this.add(bexport);This is the export button,
I think the code for the table model should be something like this:
I wont to do something like this
model.getModel().getValueAt(0, 0);
Arrylist data = new arrylist();
try
                             FileWriter ffile = new FileWriter("AddressData.txt");
                            BufferedWriter out = new BufferedWriter(file);
                             out.write(data);
                            out.close();
                         catch (Exception ei)
                         System.err.println("Error: " + ei.getMessage());
                             }          Im not 100% sure how to get the information from the model into the arrylist, though a loop.
If there is a section of a webpage that may help could someone please post it for me.
Unfortunatly for me Im visualy impaired and find some of this hard. I learn though looking at examples and creating my own programs that do something similar.
If no one wonts to help then that fine with me !

How to retreive data from structure MDEZ in T.code CO09

As per our requirement 2 new columns are needed in a customize report .i.e
- u201Cinc. lot dateu201D
- u201Cavailable inc. lotu201D
u201Cinc. lot dateu201D:to get the values for inc.lot.date
From second screen of CO09(program: SAPLATP4 and screen number: 400) pick first date where MRP element is u201CPOitemu201D, u201CShpgNtu201D or u201CPrdOrdu201D.
u201Cavailable inc. lotu201D: to get the values for available inc.lot
Pick u201CCum. ATP QTyu201D from the same row.
These data are stored in structure MDEZ. Actually I want dat00 and MNG04 based on field DELB0. If DELB0 filed is POitem or Prdord or ShpgNt then only I should retrieve the dat00 and MNG04. IF there are more than one POitem in MRP element then we should pick the first POitems' mrp date and *** ATP qty .Can you please help me out how to get these data from the structure MDEZ.
input parameters to get the values are material number and plant.

Hi,
First of all data is never stored in structure so there is no way you can retrive data from structure.
you are looking into the screen field and it is not mandatory that it will always point to a table.
Now the qestion remains how to get the data ? you need to find database table for that field there are many ways like SE84 or SE11 where used etc.
Try to find the table if you still have the problem feel free to get back.
Regards
Bikas

Compare data from a table

Hello, I am trying to compare data from one and the same table. In short I have:
     NAME     DTM     CHARGE
     Atanas     8/18/2012 9:33:23 AM     100
Atanas     8/18/2012 9:33:23 AM     101
     Niki     8/18/2012 9:33:43 AM     200
     Niki     8/17/2012 9:34:10 AM     100
Niki     8/18/2012 9:33:43 AM     201
     Niki     8/17/2012 9:34:10 AM     101
     Atanas     8/17/2012 9:34:29 AM      50
Atanas     8/17/2012 9:34:29 AM      51
     Joro     8/18/2012 12:10:12 PM 400
     Joro     8/17/2012 12:10:21 PM 300
Joro     8/18/2012 12:10:12 PM 401
     Joro     8/17/2012 12:10:21 PM 301
And I want to sum CHARGE for each DTM for each NAME and present the difference in an additional column, the output should be like that:
NAME     DTM     CHARGE DTM CHARGE DIFFERENCE
     Atanas     8/17/2012 9:33:23 AM     101 8/18/2012 9:33:23 AM 201 - 100
Niki     8/17/2012 9:33:23 AM     201 8/18/2012 9:33:23 AM 401 - 200
Joro     8/17/2012 9:33:23 AM     601 8/18/2012 9:33:23 AM 801 200
the DTM will be always /sysdate - 2/ and /sysdate - 1/,
Thanks in advance!

It is not clear what you are trying to do, but it looks like:
with sample_table as (
                      select 'Atanas' name,to_date('8/18/2012 9:33:23 AM','mm/dd/yyyy hh:mi:ss am') dtm,100 charge from dual union all
                      select 'Atanas',to_date('8/18/2012 9:33:23 AM','mm/dd/yyyy hh:mi:ss am'),101 from dual union all
                      select 'Niki',to_date('8/18/2012 9:33:43 AM','mm/dd/yyyy hh:mi:ss am'),200 from dual union all
                      select 'Niki',to_date('8/17/2012 9:34:10 AM','mm/dd/yyyy hh:mi:ss am'),100 from dual union all
                      select 'Niki',to_date('8/18/2012 9:33:43 AM','mm/dd/yyyy hh:mi:ss am'),201 from dual union all
                      select 'Niki',to_date('8/17/2012 9:34:10 AM','mm/dd/yyyy hh:mi:ss am'),101 from dual union all
                      select 'Atanas',to_date('8/17/2012 9:34:29 AM','mm/dd/yyyy hh:mi:ss am'),50 from dual union all
                      select 'Atanas',to_date('8/17/2012 9:34:29 AM','mm/dd/yyyy hh:mi:ss am'),51 from dual union all
                      select 'Joro',to_date('8/18/2012 12:10:12 PM','mm/dd/yyyy hh:mi:ss am'),400 from dual union all
                      select 'Joro',to_date('8/17/2012 12:10:21 PM','mm/dd/yyyy hh:mi:ss am'),300 from dual union all
                      select 'Joro',to_date('8/18/2012 12:10:12 PM','mm/dd/yyyy hh:mi:ss am'),401 from dual union all
                      select 'Joro',to_date('8/17/2012 12:10:21 PM','mm/dd/yyyy hh:mi:ss am'),301 from dual
select nvl(s1.name,s2.name) name,
        s1.dtm,
        s1.charge,
        s2.dtm,
        s2.charge,
        s2.charge - s1.charge diff
from      (
             select name,
                     dtm,
                     sum(charge) charge
               from sample_table
               where dtm >= trunc(sysdate) - 1
                 and dtm < trunc(sysdate)
               group by name,
                        dtm
            ) s1
        full join
             select name,
                     dtm,
                     sum(charge) charge
               from sample_table
               where dtm >= trunc(sysdate)
                 and dtm < trunc(sysdate) + 1
               group by name,
                        dtm
            ) s2
          on s1.name = s2.name
NAME   DTM           CHARGE DTM           CHARGE       DIFF
Atanas 17-AUG-12        101 18-AUG-12        201        100
Niki   17-AUG-12        201 18-AUG-12        401        200
Joro   17-AUG-12        601 18-AUG-12        801        200
SQL> SY.

Data from AS-400

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