How to retrieve logical database

Hello All,
I have tried to make some changes in standard logical database and now it has become inconsistent.
Is there any way to reset it to its original state??
Thanks,
Sunny

We have these two servers at present ie devlopment and production
i have made some modifications in development server and this ldb is currently inconsistent
our transport route is from dev to prod server
i havent touched production yet
the original fomat is in production server.
hope the scenario is clear with u
pls let me knw if u want further info
sunny

Similar Messages

How to call logical database

hi friends,
plz explain me how to call logical database in a report program?

hi,
Logical databases are special ABAP programs that retrieve data and make it available to application programs. The most common use of logical databases is still to read data from database tables by linking them to executable ABAP programs.
However, from Release 4.5A, it has also been possible to call logical databases using the function module LDB_PROCESS. This allows you to call several logical databases from any ABAP program, nested in any way. It is also possible to call a logical database more than once in a program, if it has been programmed to allow this. This is particularly useful for programs with type 1.
Logical databases contain Open SQL statements that read data from the database. You do not therefore need to use SQL in your own programs. The logical database reads the program, stores them in the program if necessary, and then passes them line by line to the application program or the function module LDB_PROCESS using an interface work area.
Logical Databases - Views of Data
A logical database provides a particular view of database tables in the R/3 System. It is always worth using logical databases if the structure of the data that you want to read corresponds to a view available through a logical database.
The data structure in a logical database is hierarchical. Many tables in the R/3 System are linked to each other using foreign key relationships. Some of these dependencies form tree-like hierarchical structures. Logical databases read data from database tables that are part of these structures.
Advantages of Logical database -
1) No need of programming for retrieval , meaning for data selection
2) Easy to use standard user interface, have check completeness of user input.
Disadvantages
1) Fast in case of lesser no. of tables But if the table is in the lowest level of hierarchy, all upper level tables should be read so performance is slower.
GO THROUGH THE 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
Use Tcode SE36 For creating Logical Database.
Here is a simple Program on Logical database.
NODES: spfli,sflight.
START-OF-SELECTION.
WRITE 'Test Program for GET'.
*Fetching SPFLI table
GET spfli.
WRITE: / 'Carrid:', spfli-carrid,
'Connid:', spfli-connid.
*Fetching SFLIGHT table
GET sflight.
SKIP 5.
WRITE: / 'Carrid:', sflight-carrid,
'Connid:', sflight-connid.
logical database
logical database
http://help.sap.com/saphelp_nw04/helpdata/en/60/183d78163011d2953c0000e8353423/frameset.htm
general
example program
http://help.sap.com/saphelp_nw04s/helpdata/en/9f/db9be035c111d1829f0000e829fbfe/frameset.htm
regards,
pavan
REWARD POINTS IF USEFUL

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

How to determine logical database in a program?

Hello guys!
How to determine logical database in a program on Eclipse?
I have not found any options:
Thanks!

Welcome to SDN
Check the table RSOSFIELDMAP
Assign points if useful
Regards
N Ganesh

How to know logical database supports Dynamic Selections

hi all,
1. Logical database KDF supports Dynamic Selections
2. How to know logical database 'KDF' supports Dynamic Selections

You might find an answer regarding dynamic 'WHERE' statements in standard SAP report SAPDBKDF

Why and how we use Logical Database?

Can anybody explain with example why and how we use logical database?
Regards,
Rajan

Hello,
SAP comes loaded with all the extras. Among the extras that are most helpful to IT managers are all the access routines needed to pull any business object that managers can think of out of SAP databases. However, SAP has not thought of everything where your particular applications are concerned. SAP organizes its standard database tables to service business units based on conventional business applications. Itu2019s likely your business requires something new, perhaps even something exotic. In that case, you will need to create a new database, using information from different places. Basically, you need a logical database. You need to create a virtual business data object repository consisting of a new kind of record or table that suits your purposes. In addition, the repository should be composed of information that is actually stored in a number of different locations, none of them necessarily logically associated with one another. Letu2019s take a closer look at creating logical databases.
A case for a logical database
Suppose my company manufactures widgets of the most obscure variety, and they are components of other widgets. I sell my widgets as raw material for the more sophisticated widgets built by others, but in some cases I actually partner with other manufacturers in creating yet another class of widget. Now, in my world, I consequently have customers who are also partners. I sell to them and I partner with them in manufacturing and distribution. Also, I need an application that uses both of these dual-use relationships.
Essentially, I have a customer database and a partner database. Neither contains records that are structured to contain the identifying particulars of the other. Thus, I need a hybrid database that gives me tables detailing these hybrid relationships. What can I do? I can go the long way around and write a new database, pulling information from both and creating new objects with a customized program that I write by hand. However, this process is cumbersome and contains maintenance issues. On the other hand, I can use SAPu2019s logical database facility, create my logical database in a couple of minutes, and have no maintenance issues at all.
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.
u2022     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.
u2022     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.
u2022     Database access programming: Once youu2019ve 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
ABAP/4 (Advanced Business Application Programming language, version 4) is the language created by SAP for implementation and customization of its R/3 system. ABAP/4 comes loaded with many predefined logical databases that can construct and table just about any conventional business objects you might need in any canned SAP application. However, you can also create your own logical databases to construct any custom objects you care to define, as your application requires in ABAP/4. Hereu2019s 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.     Youu2019ll be prompted for a short text description of your new logical database. Enter one. Youu2019ll then be prompted to specify a development class.
4.     Now comes the fun part! You must 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 youu2019ve 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 donu2019t have to write a single line of code.
Regards
Arindam

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

How to modify Logical database Selection screen

I am using PNP logical database , it is giving one selection screen ,
after executioni can able to change the selection screen but i want to change default selection screen so that when i execute i want specific fields in selection.
How to modify it?

Hi,
You need to use report category.In the attributes,click HR report category and select or create the selection screen you need.
Check this link.
http://www.sapdevelopment.co.uk/hr/hr_repcat.htm
Kindly reward points by clicking the star on the left of reply,if it helps.

How to debug Logical database

HI all,
I am trying to execute the report RFDOPR00 , where structure BSEGA is getting populated from Logical database DDF. Can I put break poing in DDF and see how BSEG is being populated.
I tried doing so but , not able to reach the break point. Please suggest how to debug DDF?
Regards
Saurabh

Hi,
If you want to see how it is getting populated.
Goto Tcode SE36, give DDF and press display.
On the user menu bar click on source code to view the logic.
Regards,
Amit

How to find Logical database name using selection view

Hi Experts,
How can we find logical database name using selection view in se36.
Regards,
Mani

Hi,
If you want to see the logincal database used in the report ( tcode se38) in the intial screen select the attribute tab
and click display you will bw able to see the logical datbase ysed for the report.
Thanks.

How to Find Logical Database with table name

Shankar

Version 4.6x
If you need to find the logical database for a table name, you can used SE36 - Logical Database Bulider.
Steps :-
Go to transaction SE36
Click Extras -> Table usage
Supply the Table name and hit enter.
A Display Logical Database will be shown on a pop-up windows.
Reward points if it is usefull ....
Girish

How to use Logic DataBase in WDA?

Hi Experts,
The LDBs contain: Selection Screen, Authorization check, Data Retrieval, and it is very useful for writing a report within R3 system.
I am developing some WDA reports, and really need this kind of features too. Is there anyone know how to use LDB in WDA???
Thanks a lot.
Best Regards,
Guo Guo Qing

Thanks for your reply.
Could you tell me if there is some standard function module to handle LDB?
Best Regards,
Guo Guo Qing

How to use logical database "psj" for query?

Hi, expert :
use "PSJ" to make a query. but in queries, the title have two lines. and can't correspond to the content.
how to make the title correspond to the content?
regards

Hi
Comments option nothing but where you can enter your description.While creating the SAP Query using SQVI enter your query name and click create one popup window will come in that you have comments field where you can enter your description.
Thanks
S.Murali

Query, infoset and Logical database tuning?

Hi, All:
I created infoset z_infoset based on logical database DDF.
then based on infoset z_query based on infoset z_infoset.
then run the z_query, the performance is too bad.
take long time.
How to tuning logical database, infoset and query.
Thanks,

These are what I am dealing with:
Transaction ME80FN
/SAPQUERY/ME, ME80FN query.
Another way to word the question is: How can I make a copy of the global query /SAPQUERY/ME, ME80FN to have that nifty bottom toolbar that transaction ME80FN has?
At first glance, they are the same entity... But the toolbar in the transaction and display options via the last button on the toolbar differentiate the two.
Thanks....

Why u use logical databases

how u used logical database?how is data transferrd to program?corresponding statement in LDB?

Hi,
Logical databases are programs that does useful tasks like data fetch, Authorization check on behalf of thep program to which you attach them.
Some of the Tasks of LDB's.
Reading the same data for several programs.
The individual programs do not then need to know the exact structure of the relevant database tables (and especially not their foreign key relationships). Instead, they can rely on the logical database to read the database entries in the right order during the GET event.
Defining the same user interface for several programs.
Logical databases have a built-in selection screen. Therefore, all of the programs that use the logical database have the same user interface.
Central authorization checks
Authorization checks for central and sensitive data can be programmed centrally in the database to prevent them from being bypassed by simple application programs.
Improving Performance
If you want to improve response times, logical databases permit you to take a number of measures to achieve this (for example, using joins instead of nested SELECT statements). These become immediately effective in all of the application programs concerned and save you from having to modify their source code.
The data fetch happend with the PUT_XXXX subrotuines in the Logical database programs.
Example:
DATABASE PROGRAM OF THE LOGICAL DATABASE TEST_LDB
PROGRAM sapdbtest_ldb DEFINING DATABASE test_ldb.
TABLES: lfa1,
 lfb1,
 lfc1,
 bkpf.
Initialize selection screen (process before PBO)
FORM init.
ENDFORM. "INIT
PBO of selection screen (always before selection
screen
FORM pbo.
ENDFORM. "PBO
PAI of selection screen (process always after ENTER)
FORM pai USING fname mark.
CASE fname.
 WHEN 'SLIFNR'.
 WHEN 'SBUKRS'.
 WHEN 'SGJAHR'.
 WHEN 'SBELNR'.
ENDCASE.
ENDFORM. "PAI
Call event GET LFA1
FORM put_lfa1.
SELECT * FROM lfa1
 WHERE lifnr IN slifnr.
 PUT lfa1.
ENDSELECT.
ENDFORM. "PUT_LFA1
Call event GET LFB1
FORM put_lfb1.
SELECT * FROM lfb1
 WHERE lifnr = lfa1-lifnr
 AND bukrs IN sbulrs.
 PUT lfb1.
ENDSELECT.
ENDFORM. "PUT_LFB1
Call event GET LFC1
FORM put_lfc1.
SELECT * FROM lfc1
 WHERE lifnr = lfa1-lifnr
 AND bukrs = lfb1-bukrs
 AND gjahr IN sgjahr.
 PUT lfc1.
ENDSELECT.
ENDFORM. "PUT_LFC1
Call event GET BKPF
FORM put_bkpf.
SELECT * FROM bkpf
 WHERE bukrs = lfb1-bukrs
 AND belnr IN sbelnr
 AND gjahr IN sgjahr.
 PUT bkpf.
ENDSELECT.
ENDFORM. "PUT_BKPF
Regards,
Sesh

How to retrieve logical database

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