Reg. Logical Database

Hi Experts,
This is with reference to Logical Database (LDB) , I have some Doubts\Clarifications ,
1, What is the Significance of the Hierarchy of LDB structure (I.e Nodes\Tables).?
2, How to find the relation between to Nodes\Tables that is with which field references the tables were interlinked.
Thanks in Advance,
Regards,
Sen

Hi
The Hierarchy/Tree structure of tables indicates the order of database tables data fetching. As per the order it should fetch.
For example take sales order 3tables VBAK,VBAP, VBEP
so the data has to be fetched from VBAK first, then VBAP and lastly from VBEP.
You can't fetch the data from VBEP starting. it is wrong.
Always tables were interlinked with the correct Keys fields.
for example if you take the above tables VBAK and VBAP are linked with VBELN field
and VBAP and VBEP are linked with VBELN and POSNR fields
So always LDB is created with such a linking tables only, not with any table just like that.
Reward points if useful
Regards
Anji

Similar Messages

Reg setting up Logical database

Hi,
I need to set up logical file system for generating Idoc. can any one help me in setting up logical file system and how to config the idoc to that location.
I appreciate your help.
waiting to hear
Thanks,
Kisu

Hi,
I am not sure I understood your requirement. Your heading said "Reg setting up Logical database". But in your description you are asking about "logical file system". Then you say IDOC configuration. Can you please explain what you want to do?
You can create logical file using transaction FILE. If you are talking about RFC Destinations for Idocs(not logical file system), then you are talking about SM59. If you are looking for configuring logical systems for ALE distribution or workflow configuration, then you do that in customizing transaction SPRO under "Basis Components>ALE>Logical Systems--> Define Logical Systems".
Please let us know which one it is.
Srinivas

Reg Dynamic Selections in Logical DataBases

Hi All,
I am forcefully scheduling a report to run in background mode even though the users run it online.
While doing so I have handled all the parameters and the select options in the selection screen in the following way.
SELECT OPTIONS
wa_rspar-selname = 'BUDAT'.
   wa_rspar-kind = 'S'.
   if BUDAT[] is not initial.
      loop at BUDAT.
         wa_rspar-sign = BUDAT-sign.
         wa_rspar-option = BUDAT-option.
         wa_rspar-low = BUDAT-low.
         wa_rspar-high = BUDAT-high.
         append wa_rspar to rspar.
      endloop.
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     wa_rspar-low = BUDAT.
     append wa_rspar to rspar.
   endif.
   clear: wa_rspar.
PARAMETERS.
wa_rspar-selname = 'SORTART'.
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   append wa_rspar to rspar.
   clear: wa_rspar.
While doing so since the report uses logical database-the dynamic selection portion has to be handled otherwise the dynamic selection is ignored and the report is displayed wrong.
How can we handle the dynamic selection portion for the forceful conversion of the program to background mode even if it is run online.
Has anyone faced this kind of issue.If so how was it resolved.
Thanks in advance.

Finally it seems not to be possible to fill the dynamic selection of a logical database during INITIALIZATION in a report which is using the respective logical database (under report properties).
My solution was to create a new select option within the customer program which refers to the respective database column (... FOR bsis-gjahr). If this column is supported by the dynamic selections of the logical database, then the values entered on the selection screen are automatically transferred and used by the logical database selection. It is just important to refer to the correct table, as BSIS-gjahr is working while BSEG-gjahr and BKPF-gjahr are not working in my example.
See the following link:
http://help.sap.com/saphelp_470/helpdata/en/9f/dba73935c111d1829f0000e829fbfe/content.htm?frameset=/de/9f/dba76035c111d1829f0000e829fbfe/frameset.htm&current_toc=/de/d3/2e974d35c511d1829f0000e829fbfe/plain.htm&node_id=305

Runtime error while creating logical database report pgm

Hi,
I have started doing pgm on Logical Database report using VBAK,VBAP and MARA. I took VBAK as the root node and VBAP& MARA as subnodes. The actual requirement is:- I am trying to place these tables in Application server for perfromance issue using Logical database. Based on sales, the items need to be be displayed. And based on Items, the material data should be displayed.So root node here is VBAK.
I have created these 3 nodes in SE36 tx.code. when I go back to se36 main screen and under "subobjects" ,I've selected "selections". I got a dialog box saying that "Nodes for which free selections are to be made". I have clicked on the radio buttons.And then clicked on "transfer" . I am getting a runtime error . Please let me know the solution.
Please do send me the actual process to goon with logical database reporting.

Hello
Logically speaking, a company code can have more than one FSV as long as they share the same chart of accounts.
When COA is common, the FSV pattern can be designed seperatly to serve the purpose of varied reporting.
The dump you are getting is a temporary snag. Take a screen shot from SM54 after you execute the report and pass it to BASIS for analysis. They would fix that.
Reg
assign points if useful

Logical Database in Abap Objects

Hi to All
I want do it a program report using a Logical Database.
Is this possible ??? But when I make a GET <node>, occurs the following error:
         "" Statement "ENDMETHOD" missing. ""
I'm doing the following:
CLASS MONFIN IMPLEMENTATION.
       METHOD TRAER_DATOS.
               GET VBRK.
       ENDMETHOD.
ENDCLASS.
Please, somebody tell me how I use the logical database in Abap Objects.
Thank you very much
Regards
Dario R.

Hi there
Logical databases whilst of "some use" are not really part of OO.
If you want to use a logical database in an abap OO program I would create a special class which just does the get data from your DB and pass this either at record or table level.
Techniques such as GET XXXX LATE aren't really part of any OO type of application since at Object Instantiation time you should be able to access ALL the attributes of that object.
As far as OO is concerned Logical databases are a throwback to "Dinosaur Technology".
Since however modules such as SD and FI are still heavily reliant on relational structures (i.e linked tables etc) then there is still some limited life in this stuff but for OO try and solve it by another method.
If you really must use this stuff in OO then do it via a FMOD call and save the data in a table which your method will pass back to your application program.
You can't issue a GET command directly in a method.
Cheers
Jimbo

Logical Database in Webdynpro

Hello,
I have a program in R/3 that is based on a logical database. I don't want to have to write the program all over again in Webdynpro.
Is there a way to use the logical database in Webdynpro for ABAP.

Basically WDA calls a FM and then the following help is a good starting point:
"Calling a Logical Database Using a Function Module"
http://help.sap.com/saphelp_nw04/helpdata/en/64/237f8cd43711d1950b0000e8353423/content.htm
Kindly close the thread and award appropriate a points to the answer given.
Sergio

Logical database in adhoc query

Hello All,
Can anyone tell me what is the logical database in adhoc query?

Hi
When you create a query , you have to select an infoset. Infoset can be considered as a source from which data is populated in the Query Fields.
Infosets are created from Transaction SQ02.
There can be four methods through which an Infoset can become a source of data:
1. Table join ( By joining two or more tables from Data dictionary)
example: Joining tables PA0001 and PA0006 on Pernr to get a one resultant dataset
2. Direct read of Basis Table ( Like PA0001 as a source for data in Infoset )
3. Logical Database ( A Pre-written Program by SAP that extract data from clusters, tables taking care of authorizations and validity periods)
Example : Logical database PNP, PNPCE (Concurrent Employement),PCH ( LDB for Personnel Development Data)
Custom Logical DBs can be created in T_Code SE-36.
4. Data Retrieval by a Program ( Custom code written by ABAP developers which will collect and process data) . This program has a corresponding Structure in data dictionary and the fields of this structure will be used in query)
Reward Points, if helpful.
Regards
Waseem Imran

LOGICAL DATABASE IN HR ABAP PRPGRAMMING

Hi Friends,
what is use of LOGICAL DATABASE IN HR ABAP PROGRAMMING
AND END-OF-SELECTION EVENT IN HR PROGRAMMING PROGRAMMING???
regards,
vijay.

hi
HR Logical Databases
In Human Resources (HR), the following logical databases can be used as a data source for HR InfoSets:
PNP (PNPCE)
PAP
PCH
By selecting a logical database, you determine the HR data that can be reported on using an InfoSet.
Logical Database PCH
This logical database generally enables you to report on all HR infotypes. However, you are advised not to use this logical database unless you want to report on Personnel Planning data.
Logical Database PNP (or PNPCE)
Use logical database PNP to report on HR master data. It is possible to use logical database PCH to access this data, but PNP meets such reporting requirements more quickly because it is best suited to the task of selecting persons.
Logical database PNP enables you to access HR master data and infotypes from Personnel Planning. For example, you have the following options:
Reporting on the costs, number of attendees booked, and instructor for a business event on which an employee is booked
Reporting on working time and planned compensation for a position that an employee occupies
Reporting on the validity and proficiency of a qualification that an employee fulfils
From a technical perspective, this means you can use PNP to report on all of the infotypes that exist for objects (infotype 1000) that have a direct relationship (infotype 1001) with the Person object.
The ability to access infotypes from Personnel Planning using logical database PNP is a special feature that you can only use in the context of SAP Query and Ad Hoc Query. You cannot use this functionality for ABAP reports you programmed yourself.
You can also use logical database PNP to report on data from Personnel Time Management (infotypes 2000 to 2999) and Payroll (special payroll infotypes for the USA and customer infotypes; for more information, access Customizing for the Human Resources Information System and see Payroll Results).
Logical Database PAP
Logical database PAP enables you to access data from Recruitment.
regards
navjot
reward if helpfull

Logical database and program selection filter

Hi experts ,
In my program i have to select pernr through logical database selection and payroll area through manual coding .
Could you tell me how to give the filter condition in program.I am using PNPCE Logical database .
Thank you.
Devika.

I guess you mean to modify the screen layout during AT SELECTION-SCREEN OUTPUT via
AT SELECTION-SCREEN OUTPUT.
LOOP AT SCREEN.
screen-active = 0.
MODIFY SCREEN.
ENDLOOP.
This does hides all screen elements but the screen is still displayed.

Logical Database and Logical Thing

Hi,
i want to access KONV which is cluster table and the field is KWERT.
The thing is that i want to access it by taking customers from KNVV and giving it to VBRK (SALES Table). Now in VBRK i want to have a selection on FKDAT to get a list of Customers stored in the field called KUNAG.
on VBRK-KUNAG basis i want to access the table KONV-KWERT.
If i am doing queries then the System stops responding cuz it has got alot of overhead. So i tried to use Logical Database called VFV.
If this is the best solution means using LDB then how to use it, can anyone help me with this. I tried it by Function module but it is showing all data without considering selection criteria.
If anyone can help me then plz do answer or refer me to any web site so that i can figure this thing out. If anyione has got a good book on that then plz feel free to mail me.
Thanks,
Muhammad Usman Malik
ABAP Consultant
Siemens
[email protected]
+92-333-2700972

Thanks Shibba that was very helpful, i applied that but the system overhead was so much.
can u help me with Dynamic selection code.
I used FREE_SELECTION_INIT, FREE_SELECTION_DIALOG and then FREE_SELECTIONS_RANGE_2_WHERE to get ther Selections in one table.
if u want me to send u the code then i can do that cuz i am getting so much mad that this work is not done yet.
The Scenario here is that we want to take BILLED Customers and VKORG as Industrial Billing Customer and then taking VBRK and giving all these Customers and then taking selection on FKDAT range.
Now after that the data should be collected from KONV-KWERT and i want to perform some calculation over it. I am using VFV (Logical Database) to perform this thing because i know that it would be very fast then applying my own queries.
If you can mail me any book on Logical Database and Dynamic selection then it will be very Helpful.
Thanks once again for being such helpful.
Muhammad Usman Malik
SAP Consultant
[email protected]
+92-333-2700972

Logical database access in abap HR

Dear all,
i am working on HR Master Report. is there any way to access logical database PNP without standard input screen.
means due to requirement my input screen is totally different so i don't want to use standard input screen. but i want to access
pernr table by get pernr or other functioality of PNP logical database.
any valuable suggesstion will be much apprecaited.
Thanks and Regards
vijay dwivedi

Yes, there is, by means of FM [LDB_PROCESS|http://help.sap.com/saphelp_47x200/helpdata/en/64/237f8cd43711d1950b0000e8353423/frameset.htm]
Regards
Marcin

How to use Logical database in function module?

I will create a function module in HR.
but how to use Logical database in function module ? Logical database PNP always show screen.in function (RFC) code , it is a matter.

You cannot attach the LDB to the main program of the function group.
- So you may [SUBMIT|https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=submit&adv=false&sortby=cm_rnd_rankvalue] a report which use the LDB and get back the data (export/import), by default in the syntax of SUBMIT the selection-screen will not be displayed
- Use [LDB_PROCESS|https://www.sdn.sap.com/irj/sdn/advancedsearch?query=ldb_process&cat=sdn_all], fill a structured table for selection, and get data back in another table
- Use [HR function modules to read Infotypes|https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=hrfunctionmodulestoread+Infotypes&adv=false&sortby=cm_rnd_rankvalue].
Regards

Use of Logical Database in function module

Hello Experts,
Is there a way of using logical database and Get enent inside a function module.
I am trying to create a RFC for HR module and need this badly. Any help would be highly appriciated.
Thanks,
Gregory fernando

This fm will work fine with all LDBs including PNP
Have you checked the fm documentation ?
a®

Change selection screen in LDB (KDF logical database - NOT HR)

Hi All,
Iu2019d like to use KDF logical database to keep the dynamic selections since user wants to use it but I need to change the selection screen itself. The existing variants for KDF donu2019t meet the user requirements. Some fields I need to hide some add. Like I want to u201Cremoveu201D the field u2018Posting periodu2019 (MONAT) (which is available in dynamic selection screen) and put it on the u201Cmainu201D selection screen.
Do I need to create my own logical database or there is a way around?
Could someone give me a practical advice or sample of solution?
Thanks a lot.

Thanks Himanshu,
I did as you suggested but problem is that it does not allow me to hide the whole block.
I have 3 filelds actually on block KD_0 I need to hide (its from selection screen of KDF logical database.)
SELECT-OPTIONS: KD_LIFNR FOR LFA1-LIFNR MATCHCODE OBJECT KRED.
SELECT-OPTIONS: KD_BUKRS    FOR LFB1-BUKRS.
SELECTION-SCREEN END OF BLOCK KD_0.
PARAMETERS KD_INDEX AS SEARCH PATTERN FOR TABLE LFA1.
What I did is below. I used sp instead of u201C=u201D since it has many screen for field KD_LIFNR(for frame, text etc).
And when I did just for KD_LIFNR it was hidden but when I did the same for KD_BUKRS it was not hidden . The field has stars u201C*********u201D in it.
Same happen with KD_INDEX. The name of the field is hidden but field not and it filled with ********. Do you have any ideas what it can be?
I debugged it to catch all screen names but no luck
loop at screen.
    if screen-name cp 'KD_LIFNR' or
    screen-name cp 'KD_BUKRS' or
    screen-name cp 'KD_INDEX' or
    screen-name = '%B000003_BLOCK_1000' or
    screen-name = 'SSCRTEXTS-FRAME_TEXT' or
    screen-name = 'SSCRTEXTS-MCID_TEXT' or
    screen-name = 'SSCRTEXTS-STRNG_TEXT' or
    screen-name = 'SSCRFIELDS-SEARCH_BTN' or
    screen-name = '%B025008_BLOCK_1000' or
    screen-name = '%F021010_1000' or
    screen-name = 'ALCUR' or
    screen-name = '%F022012_1000' or
    screen-name = 'EXCDT' or
    screen-name = 'SSCRFIELDS-UCOMM'.
      screen-invisible = '1'.
      modify screen.
    endif.
endloop.

Use of Logical database in ABAP Queries

hi,
Can anybody tell me when/why do we use logical database in Infosets for ABAP Query?
Regards,
Divya

hi,
pros: -you need not to define so many own tables, fields and additional codings in your info set
cons: - performance in huge DB's
A.
Message was edited by: Andreas Mann

Reg. Logical Database

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