Creation of Datasource on Logical Database

Hi,
Any information as to how to create Datasource from a logical database in R/3 would be a great help.
Thanks,
Nikhil

hi,
Using that LDB, you can write SQL statements in ECC,so create a table and dump the data from LDB into that table. And create a DS on that table.
LDB: you can't see it in SE11, just it is combination of some tables.
While creating DS in RSO2, we have 3 options, but LDB option is not there, either you create a Function Module using that LDB or Table then you connet that in RSO2.
Thanks
Reddy

Similar Messages

Datasource from a logical database.

Hi all,
I am in need of creating a datasource from a std.. Logical Database IMA in R/3. Is it possible to create a datasource directly from logical database or it is essential to find the base tables fetching data to the logical databse and look for the appropriate business content.
Regards,
Murali

Thank you,
The document helped me to create a Infoset.Can anyone share ur experience of creating a datasource using a INFoset which extracts data from a LDB. The LDB which i am supposed to use has few structures,hence, I am having some performance isssues which i believe a more elaborate better document can help me with.. The LDB I am looking for is IMA.
Thanks in advance.

Report creation with PNP logical database

Hi All
Want to select data according to the begda and endda on the selection screen, if any body has the code will be of great help
rgds
aj

Hi,
In the attributes,give PNP as logical database.
Then in the program,paste the following coding.
tables pernr.
infotypes 0001.
start-of-selection.
get pernr.
provide * from p0001 between pn-begda and pn-endda.
write : / p0001-begda, p0001-endda.
endprovide.
end-of-selection.

Creation of logical database

hi all.....
i was created LDB and i created KNA1 as node and in that VBAK as child node and VBAP as child node for VBAK.
in the selection option i choosed all fields ,
in the selection i written as
selection-option: cust no for kna1-kunnr,
selection-option: ordno for vbak-vbeln.
and in the source code
in KNA1 include..
select * from kna1 where kunnr in custno .
endselect.
in VBAK include...
select * from vbak where vbeln in ordno and kunnr = kna1-kunnr.
endselect.
in VBAP include...
select * from vbap where vbeln = vbak-vbeln.
end select.
when i checked there is no syntax mistakes but i test that program im gettign runtime error i.e convertion is not possible..........
please solve my problem...

Hi Ramprasad,
your efforts to create a logical database are highly admirable.
But if you want to stay up-to-date, you might consider using something else. Starting with ABAP 600 release, SAP lists this in the Obsolete Techniques section of ABAP that may appear in older programs but should no longer be used..
look here: <a href="http://help.sap.com/printdocu/core/Print46c/en/Data/Index_en.htm">http://help.sap.com/saphelp_erp2005vp/helpdata/en/fc/eb2d4d358411d1829f0000e829fbfe/frameset.htm</a>
Regards,
Clemens

Creation of DataSource

Hello Techies,
I am very new to ejb.
I am trying to create a DataSource in weblogic.
I am having weblogic 7.0 n using mysql as DataBase.
I am using mysql-connector-java-3.0.17-ga.jar file to connect mysql from java.
I had modified the script of startWLS.cmd which is present in the following path
C:\bea\weblogic700\server\bin
set CLASSPATH=%JAVA_HOME%\lib\tools.jar;%WL_HOME%\server\lib\weblogic_sp.jar;%WL_HOME%\server\lib\weblogic.jar;%WL_HOME%\server\lib\mysql-connector-java-3.0.17-ga-bin.jar;%CLASSPATH%
Now i had placed this mysql-connector-java-3.0.17-ga-bin.jar in to
C:\bea\weblogic700\server\lib
I am having few doubts regarding creation of DataSource.
Now after this on i opened the console n created a connection pool
The details are of connection Pool are as follows::
GENERAL::
Name : ramukkpool
url : jdbc:mysql://localhost:3306/test
Driver Classname: com.mysql.jdbc.Driver
Properties :
user = root
Password = XXX
>> create
TARGETS::
i had shifted myServer from left side to right side n clicked >>Apply
(Techncially can we say this as deploying the connection pool into server ???????????
If not how to deploy the connection pool into server??)
I did not get any errors in the console.
Now i am creating a datasource
CONFIGURATION:
Name : ramukkDataSource
JNDIName: jdbc/ramuJndi(Does we have to follow this convention only?? i.e JNDIName should start with jdbc/ only)
PoolName: ramukkpool
createTARGETS::
I had shifed myServer from left to right n >>Apply.
Now also i did not get any errors in the console.
Does this means I had created DataSource successfully.
How to deploy the DataSource into server??
regards,
ramu.

Hi Ramachandran,
Follow the link given below, you will get one tutorial named "How to access the Car Rental Web Service?" for the same thing. This application is creating Datasource and also tables in WAS, and accessing that databse table from webdynpro as well as J2ee application.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/web dynpro tutorial and sample applications.faq
Also you can get documentation for the same in Help content of your Netweaver developer studio.
Regards,
Bhavik

Logical database EQI (equipment) .. I dont want to use the default selecti

i am using Logical database EQI (equipment) its realated to PM module.....
i dont want to use the default selection screen.
instead i want to process my own selection screen inputs..
(ie..) i want to fetch the data using the GET event using my own selection screen inputs.
my selection screen inputs is   equipmentnumber (equnr)
and the output list : 1.equnr      "equipment number
                              2.shtxt       "Equipment Description
                              3.tplnr        "Functional Location
                              4.pltxt        "Functional Location Description
                              5.qmnum    "Notification Number
                              6.qmtxt      "Notification Description
             and so on ..........
how to do this ... can any one give sample code... or logic

Hi Victor,
I have a simple solution for this.i think it will help you.Do u have any idea about query designer in SAP.
by using it we can satisfy u r reuqirement.follow the below steps.
1)Go to SQ01
2)In the screen click on QuickViewer option.then you will go to another screen.
3)In that screen give any name starting with 'Z' in the QuickView box and then click on create.
4)In the dialogbox enter title and comments and then select LogicalDatabase as the DATASOURCE and give DataSourceLogicalDatabase as EQI.check the radio button Basis Mode and then click on ok.
5)then on the screen in the first half of leftside you will get another screen with the columns DATAFIELDS,LISTFIELDS,SELECTIONFIELDS,TECHNICALNAME.
6)In the DATAFIELDS column expand the tree,then u can see the fields what we have,and what you want.and also you can see the check boxes in front of the columns LISTFIELDS,SELECTIONFIELDS.
7)LISTFIELDS means the output fields,SELECTIONFIELDS means the selection screen fields(equnr).
check the checkboxes as per u r requirement and click on execute.
8)then a progam will be created.to know the program name after executing the program GO TO
SYSTEM->STATUS.then u can see the program name there.
If u know all these,let me know so that i can try for another solution.
Thanks,
N.K.C

Asset Reporting - Copying Logical Database ADA

Can you please assist with the following query? Im trying to include the following standard R3 ffields within standard R3 reports AR01 (Asset Balances) & AR18 (Depreciation Simulation):
                                Table            Field Name            Data Element
Serial Number            ANLA            SERNR                AM_SERNR
Inventory Number       ANLA            IVNR                   INVNR_ANLA
To date I have been unsuccessful in my endeavours.
I have been discussing with an ABAPer and have been discussing the creation of Z transactions to give me the information Im looking for.
Im looking for help, assistance and expertise whether the following would be recommended or even technically feasible.
·     Is it possible to copy logical database ADA to say ZADA (if yes how would I or the ABAPer go about this)?
·     Is there a way to link existing R3 reports to the new logical database
As the majority of the R3 reports appear to be linked to ADA the aim is to amend this once and not require creating lots of Z reports.
Any help you could provide would be greatly appreciated
Best regards,
Paul

Hi Paul,
this is strange, what release are you on?
I have just checked AR01 on ECC 6.0, and it offers everything you need. On the selection screen of AR01, you can add selection criteria on both Serial number and Inventory number. Plus, you can display both fields in the ALV list.
The data may be stored on table ANLA physically, but the logical database ADA is using a structure (ANLAV) instead. Both SERNR and INVNR are available in that structure. On the selection screen, you have to use the Dynamic selections button. And in the ALV list, you simply add the 2 columns, best idea wold be to save it as a variant for future use.
Anyway, logical databases can be copied in SE36, you simply have to press the Copy button The more critical issue is how to link standard reports to the new LDB. The answer is, no way. Instead, you should copy some of your favorite standard reports, and change the LDB in the copies.
But, I really do not think you need this, as ADA can provide you with the information required out of the box.
Hope that helps, points welcome
Csaba

Can any one tell me how to create logical database

i want to create logical database which contain tables BSEG,BSIS,BSAS,BKPF.
tell me how this table will come under hierarchary and
what should i do.please guide me step by step for this problem,i am new to logical datbase.

Hi,
Use transaction SE37 or SLDB for creation of LDB.
Three main things in creation of LDB are
1)Structure(Hierarchy in nodes)
2)Selections
3)Source code
In structure part we have to define hierarchy as IN NODES
BKPF - Accounting Document Header
BSEG - Accounting Document Segment
BSIS
BSAS
In selections part we have to define selection screens for the LDB
In source code part we have to write the data decelerations and data retrieval.
Regards
Rajesh Yadla

Linking logical database to TABLE in query

Can we link Logical Database to Table during query creation in tcode SQVI
Message was edited by:
rohith modi
Message was edited by:
rohith modi

go to sqvi and select "Table Join"in data source and enter title select radio button for "basis mode" and enter u reach a new screen in that new screen press "insert table" and give ur table name and again press "insert table" and give another table in thsi way we can joint table in ABAP query.
reward points if it is helpful

How to add a selection criterion to a SQ01 query based on logical database SDF?

Hi,
How should I add a selection criterion to a SQ01 query based on the logical database SDF? Is it possible through additional code? How to make use of the custom selection fields? I need a selection criterion based on BKPF-CPUDT (creation date).
Thanks.

Hi John,
Please check the given below link in addtion to Atul post.
http://scn.sap.com/community/erp/sd/blog/2012/04/16/query-report-tips-part-2--mandatory-selection-field
Thanks,
Senthil Maruthappan.

SFLIGHT is NOT defined for the current logical database.

I have just started learning ABAP and bought an ABAP Objects book by Horst Keller. I have installed 4.6d mini sap and SAP GUI 6.4 on win XP Prof. I executed S_FLIGHT_MODEL_DATA_GENERATOR to load DB tables.
(1). When I tried to check a sample program, I get an error message SFLIGHT is not defined for the current logical database.
Here is the partial code:
REPORT zbcb01f1 .
TABLES: sflight, sbook.
DATA: BEGIN OF sr OCCURS 100,
      carrid LIKE sbook-carrid,
      connid LIKE sbook-connid,
      fldate LIKE sbook-fldate,
      bookid LIKE sbook-bookid,
      order_date LIKE sbook-order_date,
      loccuram LIKE sbook-loccuram,
      END OF sr.
GET sflight.   <---- Error is pointed here
(2). I am also not getting Graphical Screen Painter when selecting Layout for a screen. Instead, I am getting alphanumeric editor.
Someone please help me.
Raizak.

Hi Raizak,
the easiest way is to go to service.sap.com/notes and enter the note number. For this time I've copied the 2 notes below.
Best regards,
Christian
Symptom
The Graphical Layout Editor of the Screen Painter either does not start or terminates.Error message 37527 is displayed in the session in which the call was made (Graphical Layout Editor not available.
Additional key words
() EUNOTE, EUSCREENPAINTER, 37 527
Cause and prerequisites
This note comprises all the common causes for error message 37527 and provides you with information on how to systematically trouble shoot the problem.
1. Windows32 or UNIX/motif?
As of Release 4.6B there is only the program version for 32bit Windows (NT, 95, 98, 2000 ff.).Up to Release 4.6A there was also a version for UNIX/Motif.All of the more current notes (with the exception of Note 45490) refer only to the Windows version.
2. Termination at the start or during use?
The following diagnostic steps refer to the causes of the errors which prevent the Graphical Layout Editor from starting. However, there are also known error causes, which result in the program terminating when the application is being used and which also produce the 37527 error message. This affects -
Rel.4.6C/D: Termination when attempting to read texts in the logon language -> Note 375494
Crash after transferring program and dictionary fields. Termination after transferring program and dictionary fields -> Note 189245
Release 3.1I: Termination after inputting field text -> Note 113318
3. Is the SAPGUI installation correct?
The Graphical Layout Editor is automatically installed during the standard installation of the SAPGUI.If you chose a non-standard installation, then you should have explicitely selected its installation (component "Development Tools - Graphical Screen Painter").
The program executable is called gneux.exe.During the SAPGUI installation it is placed in the same directory as the SAPGUI programms (for example, front.exe) (usually C:\Program Files\SAPpc\sapgui). The following belong to the program:
- An additonal executable gnetx.exe (RFC starter program)
- the DLL eumfcdll.dll
- various eusp* data files (that is, the names all begin with eusp.)
You can check the completeness of the program installation by starting the program gneux.exe locally in the SAPGUI directory (for example, by double-clicking on the program name in the Explorer window).The Layout Editor is displayed with German texts and an empty drawing area for the pseudo screen EUSPDYND 0000.
If the installation is not complete, an error dialog box provides information regarding the cause of the error, for example, sometimes the DLL eumfcdll.dll is missing after reinstalling the SAPGUI. For example, the eumfcdll.dll DLL was sometimes missing after the SAPGUI was reinstalled.
4. System link defined and okay?
The Graphical Layout Editor is a separate program which is started by the Screen Painter Transaction (SE51) on the Frontend machine.
Up to Release 3.0F, the programs communicated with each other via the graphics log of the SAPGUIs (gmux).The definition of the environment variable SAPGRAPH may be the cause for the program not being being found where it is.
As of Release 3.1 G, the programs use a separate RFC link which is set up in addition to the SAPGUI's RFC link.Missing or incorrect definitions of the RFC destination EU_SCRP_WN32 or problems with the creation of the RFC link are the most frequent causes for error message 37527 being displayed.Below you can find the correct settings for the RFC destination EU_SCRP_WN32 (under "Solution").Note 101971 lists all the possible causes for problems with the RFC link set-up. Attention:The Graphical Layout Editor may not be operated through a firewall (for example between the SAP and the customer system) because this does not allow an additional RFC connection in addition to the SAPGUI.
Solution
ad 1 UNIX/Motif
Note 45490 describes possible errors resulting from an incorrect program installation under UNIX/Motif (up to Release 4.6A).
ad 2 Termination when using
The above-mentioned notes may contain options for solving individual problems.However, you usually have to replace the program with an corrected version.You can do this either by downloading a patch from sapservX or by installing a more current SAPGUI.The patch is mentioned in the respective note.
ad 3 Installation
You either need to reinstall the SAPGUI or manually copy the missing file into the SAPGUI directory.In both cases you should make sure beforehand that a Graphical Layout Editor is no longer running.To do this you can either remove all processes gneux.exe from the process list by using a tool such as Task Manager (on WindowsNT) or exit the Graphical Layout Editor from the Screen Painter Transaction menu via Edit -> Cancel Graphical Screen Painter). Attention:For each session or system an individial Layout Editor process may exist so that, if need be, several processes should be cancelled.
ad 4 System link
Up to Release 3.0F:you can either delete the environment variable SAPGRAPH or copy all the files of the Graphical Layout Editor into the directory which is specified by SAPGRAPH.
As of Release 3.1G:you can use Transaction SM59 to check the RFC destination EU_SCRP_WN32 (expand the TCP/IP connections, select destination EU_SCRP_WN32).If the destination is missing, then you should create it with the following settings:
- Connection type "T" (start of an external program via ...)
- Activation type "Start"
- Start on "Front-end workstation"
- Front-end workstation program "gnetx.exe" (caution! NOT gneux.exe)
- Description (optional) "Graph. Screen Painter (Windows32)
Start Program gneux.exe using the gnetx.exe starter program."
If you want to start the program from a different directory than the SAPGUI standard directory, then replace the default value under Frontend work station by the complete path name for program gnetx.exe.Transaction SM59 also allows you to check the RFC connection via the pushbutton "Test connection").In this case the system attempts to localize and start the program gnetx.exe.If there are errors, a message is displayed regarding the possible causes (for example, gateway problem, timeout problem or the like).Note 101971 provides a detailed explanation of the problems involved with an RFC connection set-up.As the Graphical Screen Painter requires a functional RFC connection as of Release 3.1G, contact the System Administrator or create an message on the topic Middleware (BC-MID-RFC) if you encounter RFC problems.
If the program gnetx.exe can be found and started, the banner dialog box with logo, release data and version number is displayed briefly.As the Layout Editor itself is not started, the error cause must be in the installation of the Layout Editor program gneux.exe if the connection test was successful.
Release 4.5A to 4.6B: Use with Releases <3.1G>.
The Graphical Layout Editor is downward-compatible as regards the system connection, that is, an RFC-based Layout Editor for example from Release 4.6C can also be used on a non-RFC-based Screen Painter, for example of Release 3.0F.However, the releases mentioned above have a program error which causes a crash due to memory violation in the start phase of the program.Note 197328 describes the solution by installation of the corrected program version.
Important: Trace file dev_euspNNN!
If none of the diagnosis steps leads to the cause of the error and to the solution of the problem via the corresponding note, then you should add the contents of the trace files dev_euspNNN (NNN = process number) to the message for SAP, if possible.You can find this file in the current directory of the SAP System, for example under Windows NT in C:\Winnt\Profiles\<user>\SAPworkdir.If several such trace files can be found there, make sure that you use the file which matches the termination time with respect to date and time of creation.In most cases the ERROR message in the last lines of this trace file provides an important note on the cause of the error.
Source code corrections
Symptom
The graphic layout editor of the Screen Painter cannot be started (RFC version).
Other terms
() EUNOTE, EUSCREENPAINTER
Reason and Prerequisites
This is generally caused by the fact that the RFC connection between the frontend graphics layout editor and the calling screen painter program at the backend cannot be set up.
Possibility 1: Route permission denied
In the trace file dev_eusp<Process Id> of the graphics layout editor you find the entry "ERROR in RFCMgr_accept: not accepted", and in the RFC trace file dev_rfc.trc you have an entry of the form "ERROR route permission denied (<Front-Id> to <BackId>,<Service>)".
If there is a firewall between frontend computer and application
server, you need to decide whether the port for the RFC of the graphical layout editor can be released here (see Solution 1 below).
In case no firewall exists between the frontend computer and the application server, in its route permission table, the SAProuter contains either no entry for the frontend computer, on which the graphics layout editor is started, or the entry says that the link is saved by a password.Since the connection is denied, the graphics editor processes exits again, and the screen painter switches to the alphanumeric layout editor.
Possibility 2: Service 'sapgw<ServiceId>' unknown
In the trace file dev_eusp<ProzessId> of the graphics layout editor you have the entry "ERROR in RFCMgr_accept: not accepted", and in the RFC trace file dev_rfc.trc you have an entry of the form "ERROR service 'sapgw<ServiceId>' unknown".
The service sapgw<ServiceId> (for example, sapgw00) is not known on one of the computers participating in the RFC communication because the corresponding entry is missing in its service file. The affected computer can be the frontend computer or the gateway computer.
Possibility 3: The system parameter gw/cpic_timeout value is too low
This system parameter determines how many seconds the gateway is waiting for the RFC connection to be set up.In case of a high network load, the default value of 20 seconds is too small with the result that the connection cannot be created on time.Here the graphics layout editor process also exits with the trace file entry "ERROR in RFCMgr_accept: not accepted".
Possibility 4: System parameter abap/no_sapgui_rfc set
The profile parameter abap/no_sapgui_rfc of the system is set (that is, it has a value not equal to space or 0).This prevents the program of the graphics layout editor from being started with RFC at the frontend.
Possibility 5: Unnecessary authorization check
The error message "No RFC authorization for user xxxxxx" is generated although the check of the RFC authorization was deactivated by profile parameter auth/rfc_authority_check (value = space or 0). The problem is caused by a program error, that ignores the value of the profile parameter let during the call of the RFC authorization check (see Note 93254). This error can occur as of Release 4.5.
Solution
ad 1) If a Firewall is installed between frontend computer and the application server, you need to decide whether the port for the RFC link of the graphical layout editor shall be released in the firewall. This is port 33nn, where nn is the 2-digit system number of the SAP application server. As of Release 3.1G, the graphical layout editor needs an RFC link for communication with the application server in addition to the already existing linkof the SAP GUIs. Such a second link is not allowed by the firewall in general because it would contradict the security concept (password protection, logging of the connection).
If no firewall exists, you should check whether the frontend computer can be added to the route permission table or whether the password option can be removed from out of the available entry.
For details refer to chapter 4.4 of the attached Note 30289.
ad 2) Include service sapgw<ServiceId> in the service file.
Refer to Note 52959 for details.
ad 3) Increase value for system parameter gw/cpic_timeout. 60 seconds should be sufficent as a timeout limit.
ad 4) Set the system parameter abap/no_sapgui_rfc to space or 0
Start the application server so that the new parameter value comes into effect.
ad 5) Import the Support Package specified in the attachment for the release in question or implement the advance correction in the source code as described in the attached correction instructions.
As a workaround, assign RFC authorizations as described in Note 93254.

Genric extractor on logical database

Hi
I have a requirement to create a generic datsource.
the requirement is to pull the data from logical database
the logical data base consists of tables and structures.
could pls let me know how would i create a generic datasource to pull the data from logical database.
Thanks,
D

Hi
Determining the Generic Delta for a DataSource
       1.      Choose Generic Delta.
       2.      In the subsequent dialog box, specify the delta-determining field and the type for this field.
       3.      Maintain the settings for the generic delta:
                            a.      Specify a security interval.
The purpose of a security interval is to make the system take into consideration records that appear during the extraction process but which remain unextracted (since they have yet to be saved) during the next extraction.
You have the option of adding a security interval to the upper limit/lower limit of the interval.
b.      Choose the delta type for the data to be extracted.
The delta type is used to determine how extracted data is interpreted in BW and which data targets in which it can be posted.
With the delta type additive delta, the record to be loaded for summarizable key figures only returns the change to the key figure. The extracted data is added in BW. DataSources with this delta type can supply both ODS objects and InfoCubes with data.
With the delta type New Status for Changed Records, every record to be loaded returns the new status for all key figures and characteristics. The values are overwritten in BW. DataSources with this delta type can write the data into ODS objects and master data tables.
       4.      Save your entries.
Delta transfer is now possible for this DataSource.
After generating the DataSource, you can see this from the marking for the field Delta Update on the DataSource: Customer Version screen.
Example for Determining the Selection Interval for a Generic Delta
Safety Interval Upper Limit
The delta-relevant field is a timestamp.
The timestamp that was read last is 12:00:00. Delta extraction begins at 12:30:00. The safety interval for the upper limit is 120 seconds. The safety interval for the delta request is: 12:00:00 to 12:28:00. Upon completion of the extraction, the pointer is set to 12:28:00.
Safety Interval Lower Limit
The delta-relevant field is a timestamp. After images are transferred. In other words, the record is overwritten with the status after the change in BW, for example for master data. Any duplicate records that appear have no effect upon the BW system.
The last changed timestamp is 12:28:00. Delta extraction begins at 13:00. The safety interval for the lower limit is 180secs. The safety interval for the delta request is: 12:25:00 to 13:00:00. Upon completion of the extraction, the pointer is set to 13:00:00.

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

Creation of Datasource on Logical Database

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