Is Logical Database used in ABAP?????

Hi All,
I m very confused whether LDB's are used in ABAP or not.
i have undergone a small training in ABAP-HR (HCM).
In that training i was told that there is an advantage in HCM that LDB's are used here
which were not used in ABAP.
And i have read somewhere that LDB's are used in ABAP.
can plz sumone give a light on this.
Thanks,
Sonali

hi,
The use of a logical database provides you with an alternative to having to program database accesses individually. Logical databases retrieve data records and make them available to ABAP programs.
The same logical database can be the data source for several Quick Views, queries, and programs. In the Quick View, the LDB can be specified directly as a data source. A query works with the logical database when the functional area that generated the query is defined with a logical database. In the case of type 1 programs, the LDB is entered in the attributes or called using function module LDB_PROCESS. See appendix for information on how to use the function module.
Logical databases offer several advantages:
The system generates a selection screen. The use of selection screen versions or variants provides the required flexibility.
The user does not have to know the exact structure of the tables involved (especially the foreign key dependencies); the data is made available in the correct order at GET events.
Performance improvements within logical databases directly affect all programs linked to the logical database, without having to change the programs themselves.
Maintenance can be performed at a central location.
Authorization checks can also be performed centrally.
A logical database is an ABAP program that reads predefined data from the database and makes it available to other programs.
A hierarchical structure determines the order in which the data is supplied to the programs. A logical database also provides a selection screen that checks user entries and conducts error dialogs. These can be extended in programs.
SAP provides some 200 logical databases in Release 4.6. The names of logical databases have been extended to 20 places in Release 4.0 (namespace prefix max. 10 characters).
In the case of executable programs, you can enter a logical database in the attributes.
Use the NODES statement to specify the nodes of the logical database that You want to use in the program. NODES allocates the appropriate storage space for the node - that is, a work area or a table area depending on the node type.
The logical database makes the data records available for the corresponding GET events.
The sequence in which these events are processed is determined by the structure of the logical database.
Logical databases are made up of several sub-objects. The structure determines the hierarchy, and thus the read sequence of the data records.
Hope this helps, Do reward

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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

Problem with logical database DDF in ABAP query

Hi All,
I have created an ABAP query via the transaction SQ01 using the logical database DDF to retrieve customer master data from tables KNA1 & KNB1. The selection screen used is the screen 903 of the logical database DDF. But now the problem is that when I execute the query, I am getting a blank value in the tax code4(KNA1-STCD4) field though there is value in the KNA1 table for this particular field. This field was added to the table by means of a customizing include. Can anyone suggest a way to get around this problem so that I can view the content of the field STCD4 in the query.
Thanks and regards,
Sarath.

I think it's not used by DDF.
so you must check it with:
check kna1-bran1 in s_bran1.
A.

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

Sort+logical database using field group and extract

Hi Folks,
I have a program which is using Logical database concept and creating a file on application server as below.
SORT BY
    reguh-zbukr                        "Zahlender Buchungskreis
    reguh-rzawe                        "Payment method
    reguh-ubnks                        "Bankland unserer Bank
    reguh-ubnky                        "Bankkey zur Übersortierung
    reguh-ubnkl                        "Bankleitzahl unserer Bank
    reguh-ubknt                        "Kontonummer bei unserer Bank
    payment_form                       "Brazil: CC, DOC or OP
    regud-xeinz                        "X - Lastschrift
    reguh-zbnks                        "Bankland Zahlungsempfänger
    reguh-zbnky                        "Bankkey zur Übersortierung
    reguh-zbnkl                        "Bankleitzahl Zahlungsempfänger
    reguh-zbnkn                        "Bank-Ktonummer Zahlungsempfänger
    reguh-lifnr                        "Kreditorennummer
    reguh-kunnr                        "Debitorennummer
    reguh-empfg                        "Zahlungsempfänger CPD
    reguh-vblnr                        "Zahlungsbelegnummer
    regup-belnr.
LOOP.
AT NEW reguh-rzawe
PERFORM store_on_file USING j_1bh1.
ENDAT
AT NEW reguh-ubnkl
PERFORM store_on_file USING j_1bh2.
ENDAT
AT NEW reguh-ubnkt
PERFORM store_on_file USING j_1bh2.
ENDAT
AT NEW VBLNR
PERFORM store_on_file USING j_1bh3.
AT DATEN
PERFORM store_on_file USING j_1bh4.
ENDAT.
ENDLOOP.
FORM store_on_file USING daten.
IF hlp_temse CA par_dtyp.            "Temse
    PERFORM temse_schreiben USING daten.
ELSE.
    TRANSFER daten TO g_name.
ENDIF.
ENDFORM.
Is Sorting concept different when it comes to logical databases and field groups ?
I had added a new field in the sort reguh-rzawe.I think due to that it is getting into AT NEW UBNKL and AT NEW UBKNT even though those details are same for the payment methods in the payment run.Even though the house bank number and account number is same for all the payment methods it is getting into AT NEW UBNKL and AT NEW UBKNT for every new payment method in the iteration.
vblnr-1
rzawe- A
ubnkl-12345
ubnkt-45678
vblnr-2
rzawe- A
ubnkl-12345
ubnkt-45678
vblnr-3
rzawe- B
ubnkl-12345
ubnkt-45678
vblnr-4
rzawe- B
ubnkl-12345
ubnkt-45678
Can anyone here throw some light on this.
Thanks,
K.Kiran.

Read the documentation for the at-new process. As I recall the at-new considers the field named, and all the fields to the left of that in the table. With that in mind, look at how your logic will work. This could result in more, or fewer, breaks than intended(fewer if, for instance, a field to the left was deleted).

Logical path using in abap program

hay,
I want to create file in application server directory.
so i want the user to select the Logical path and file name from screen.so that he can create the file and seved in selected logical path.{path used must be from Instance profile DIR_LOGGING,GLOBALPATH directory etc).
could you pls tell me how to do this using parameter for user input selecting FILE PATH.
Do we have Functional module for Retrieving physical path
from logical path?
could you pls help me..
ambichan.

hey,
Thanks for your reply.
Instead of using logical file name as input, can we allow the user to select logical path using parameter?
I want user to select Logical path or logical file name from parameter. is it possible?
(I want to avoid user to input insteal want to allow user to select the path)
ambichan
Message was edited by: ambi chan

How to upload pdf file to DataBase using webdynpro abap.

Hi Experts,
how can i upload a pdf file in document server using webdynpro abap and display the same pdf file on the view using webdynpro abap.
Please Provide requried information .
Thanks & Regards.
Bhushan.

NB - the "data" that is returned by these classes is the data as defined in an adobe form - it doesn't return the content of non-form PDF documents.
The PDF must be an interactive form ( although that doesn't restrict you to using the SAP process for creating the form is my understanding - but I could be wrong. )
Edit - I was wrong! ONLY PDF documents that have been created by the ADS can have data extracted using these classes. So unless you are using Adobe interactive forms - then you will get no value from this functionality - and if you're using AIF then you're probably just use the standard UI element
Edited by: Chris Paine on Oct 26, 2010 6:04 PM

HR PNP Logical Database Using Cost Center selection: error!?

Hi all,
I'm using PNP logical data base and using the selection-fields available through HR Class Reports (a copy of PAY_DEF) but what happens is if in selection-screen I fill the personnel number say 1000, i get the payroll data I'm trying to get, but if i use the search field cost center of that exact person i get nothing. Does anyone has a clue on what i might be doing wrong? Because all the other search fields work, company code, HR area, everyone, but cost center, and I'm positive that i use the right cost center.
Thanks in advance,
Paula

Even though nobody answered me, i finally found the solution for my problem. so and because someone might need it here it is:
Go to Spro->Personnel Management->Human Resources Information System->Reporting->Adjusting the Standard Selection Screen and then:
1st Create Report Categories and
2nd Assign Report Categories
Since not all rep. categories on the 1st assignment is explicit on how will sel screen appear i advice you to go to the 2nd point, and execute some of the programs that appear there, and that might look alike to what you are looking for, and if you are so lucky as to find one exact use the same report category in your program, if its very alike, well, copy the Report Category into one of your own and change it the way you need it to be.
Hope this be helpfull for someone.
Paula.

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

ABAP Logical Database ADA

Hi All, I am quite familiar with Logical Databases but I need to understand the following.
1) I am using LDB ADA, but I want to use my own Selection Screen and not the default one that the LDB provides. I know I must put something in AT SELECTION-SCREEN but am unsure what.
2) Once I get the data, I want to store the data in an internal table - how do I go about doing this? If you can provide a code example that would be great.
Points for any relevant help.

Hi,
A logical database is a special ABAP/4 program which combines the contents of certain database tables. You can link a logical database to an ABAP/4 report program as an attribute. The logical database then supplies the report program with a set of hierarchically structured table lines which can be taken from different database tables.
Logical database structures
There are three defining entities in an SAP logical database. You must be clear on all three in order to create and use one.
Table structure: Your logical database includes data from specified tables in SAP. There is a hierarchy among these tables defined by their foreign keys (all known to SAP), and you are going to define a customized relationship between select tables. This structure is unique and must be defined and saved.
Data selection: You may not want or need every item in the referenced tables that contributes to your customized database. There is a selection screen that permits you to pick and choose.
Database access programming: Once youve defined your logical database, SAP will generate the access subroutines needed to pull the data in the way you want it pulled.
Creating your own logical database
Heres a step-by-step guide:
1) Call up transaction SLDB (or transaction SE36). The path you want is Tools | ABAP Workbench | Development | Programming Environment | Logical Databases. This screen is called Logical Database Builder.
2) Enter an appropriate name in the logical database name field. You have three options on this screen: Create, Display, and Change. Choose Create.
3) Youll be prompted for a short text description of your new logical database. Enter one. Youll then be prompted to specify a development class.
4) Specify a root node, or a parent table, as the basis of your logical database structure. You can now place subsequent tables under the root table as needed to assemble the data object you want. You can access this tree from this point forward, to add additional tables, by selecting that root node and following the path Edit | Node | Create. Once youve saved the structure you define in this step, the system will generate the programming necessary to access your logical database. The best part is you dont have to write a single line of code.
Noted point is we cant add any selection criteria thru our se38 program if you are attaching any LDB to program.Ist of no use.
If you want to change selection criteria to the existing LDB, you have to goto SE36 tcode and provide LDB name and choose "Change" mode by selecting "Selections" Radio button.
declaration of params is different compared to normal se38 program in some aspects.
PARAMETERS :p_curr LIKE bkpf-waers FOR TABLE bkpf OBLIGATORY.
this BKPF table should be one of the node in the "Structure" Radio button.
Thanks
Sivaparvathi
Please reward points if helpful.

Select-options when Using PNP logical database

Hi ,
We get a default selection screen when we use logical database in HR ABAP.
But we always get the selection elements as "PARAMETERS" and not as "SELECT-OPTIONS".
How can we change it to select options ....
I tried all the options in HR- Report categories but it is not working..
Kindly Help..
Regards,
Ashwin.

Hi,
execute the program. In the selection screen
For eg:
personel Number select the Mutiple Selection option. After that select the tab select intervals and u can give the range.
Regards,
Srinivas

Need to specify LEFT OUTER JOIN while using data from logical database BRM?

I'm trying to extract data for external processing using SQVI. The fields required are in tables BKPF (Document Header) and BSEG (document detail) so I'm using logical database BRM. Note: required fields include the SPGR* (blocking reasons) which don't appear to be in BSIS/BSAS/BSID/BSAD/BSIK/BSAK, hence I can't just use a Table Join on any of these but have to use BSEG, hence BRM.
If the document type is an invoice, I also need to include the PO number from table EKKO (PO header), if present, hence I'd like to add this to the list. However, if I do this, it seems that some records are no longer display, e.g. AB documents.
The interesting thing is that not all records are suppressed, so it's not a simple case of the logical database using an effective INNER JOIN, but the effect is similar.
In any event, is there a way to specify that the link to table EKKO should be treated as an effective LEFT OUTER JOIN, i.e. records from BKPF/BSEG should be included irrespective of whether any records from EKKO/EKPO exist or not?
Alternatively, is there some other way to get the SPGR* fields (for example) from BSEG and still join the BKPF? Of course, one solution is to use multiple queries, but I was hoping to avoid this.

Thanks for everyone's responses, I know how to work around the problem with sql, I am wanting to see if there is a way to make the outer joins filter go in the join clause instead of the where clause with Crystal Reports standard functionality.
We have some Crystal Reports users that are not sql users, i.e. benefit specialists, payroll specialists and compensation analysts who have Crystal Reports. I was hoping this functionality was available for them. I just made my example a simple one, but often reports have multiple outer joins with maybe 2 or three of the outer joins needing a filter on them that won't make them into an inner join.
Such as
Select person information
outer join address record
outer join email record
outer join tax record (filter for active state record & filter for code = STATE )
outer join pay rates record
outer join phone#s (filter for home phone#)
I thought maybe the functionality may be available, that I just don't know how or where to use it. Maybe it is just not available.
If it is not available, I will probably need to setup some standard views for them to query, rather than expecting them to pull the tables together themselves.

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

Select options for the pnp logical database.

Hi ,
We get a default selection screen when we use logical database in HR ABAP.
But we always get the selection elements as "PARAMETERS" and not as "SELECT-OPTIONS".
How can we change it to select options ....
I tried all the options in HR- Report categories but it is not working..
Kindly Help..
Regards,
Ashwin.

>
ASHWIN JOHARI wrote:
> Hi ,
> But we always get the selection elements as "PARAMETERS" and not as "SELECT-OPTIONS".
> Ashwin.
Which fields? Almost all of them are defined SELECT-OPTIONS.. you dont' see the range option directly.. click on he options icon & you can enter the ranges.
~Suresh

Logical database names

hi experts,
pls give me the main logical databases names used for taking reports using SAP query in sq02.
ex hr- pnp,material ckm etc

Hi
Check the tables related to LDB's
LDBS
LDBT
T0220
see the doc on LDB
A logical database is a special ABAP/4 program which combines the contents of certain database tables. You can link a logical database to an ABAP/4 report program as an attribute. The logical database then supplies the report program with a set of hierarchically structured table lines which can be taken from different database tables.
LDB offers an easy-to-use selection screens. You can modify the pre-generated selection screen to your needs. It offers check functions to check whether user input is complete, correct, and plausible. It offers reasonable data selections. It contains central authorization checks for data base accesses. Enhancements such as improved performance immediately apply to all report programs that use the logical database.
Less coding s required to retrieve data compared to normal internel tables.
Tables used LDB are in hierarchial structure.
Mainly we used LDBs in HR Abap Programming.
Where all tables are highly inter related so LDBs can optimize the performance there.
Check this Document. All abt LDB's
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.highlightedcontent?documenturi=%2flibrary%2fabap%2fabap-code-samples%2fldb+browser.doc
GO THROUGH LINKS -
http://www.sap-basis-abap.com/saptab.htm
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9bfa35c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9b5e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c6/8a15381b80436ce10000009b38f8cf/frameset.htm
/people/srivijaya.gutala/blog/2007/03/05/why-not-logical-databases
Re: **LDB**
www.sapbrain.com/FAQs/TECHNICAL/SAP_ABAP_Logical_Database_FAQ.html
www.sap-img.com/abap/abap-interview-question.htm
www.sap-img.com/abap/quick-note-on-design-of-secondary-database-indexes-and-logical-databases.htm
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9b5e35c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/9f/db9bb935c111d1829f0000e829fbfe/content.htm
Gothru the blog which provides info on LDB's:
/people/srivijaya.gutala/blog/2007/03/05/why-not-logical-databases
Reward points for useful Answers
Regards
Anji

Is Logical Database used in ABAP?????

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