Logical file names and Physical file names

Hi Guys...
Can you let me know what is the difference between Logical file names and Physical file names?
Regards,
Rohit

Using Logical Files in ABAP Programs http://help.sap.com/saphelp_nw04/helpdata/en/9f/db95e635c111d1829f0000e829fbfe/content.htm
Creating and Defining Logical Filenames
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3df8358411d1829f0000e829fbfe/content.htm

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Information about file Id, Logical file name and Physical file name

Hi All,
I am testing one program. Selection screen has 3 parameters, File Id, Logical File Name and Physical file name. In Physical File name, i am giving complete file name with path. But it is giving error. Please tell me, what is File id and what all information i need to enter for logical file name and physical file name.
Thanks
Puneet Aggarwal

hi,
try using this for filename.
parameters : p_file like rlgrap-filename.
Thanks,
Gaurav

Difference between logical file path and physical file path

Hi,
Can anyone tell me why logical file path is required and why physical file path is required? What exactly is the difference bet them?
Thanks in advance.
Regards,
PS.

Hi,
The function module FILE_GET_NAME convert a logical path into its corresponding physical path.
The advantage of using logical pathes within your applications is obivous:
If you need to change the physical path you just adjust it within transaction FILE yet no changes are required to your application.
http://help.sap.com/saphelp_erp2005vp/helpdata/en/25/ab3a57df3b11d189fc0000e829fbbd/frameset.htm
The file names that you use in ABAP statements for processing files are physical names. This means that they must be syntactically correct filenames for the operating system under which your R/3 System is running. Once you have created a file from an ABAP program with a particular name and path, you can find the same file using the same name and path at operating system level.
Since the naming conventions for files and paths differ from operating system to operating system, ABAP programs are only portable from one operating system to another if you use the tools described below.
To make programs portable, the R/3 System has a concept of logical filenames and paths. These are linked to physical files and paths. The links are created in special tables, which you can maintain according to your own requirements. In an ABAP program, you can then use the function module FILE_GET_NAME to generate a physical filename from a logical one.
Maintaining platform-independent filenames is part of Customizing. For a full description, choose Tools ® Business Engineer ® Customizing, followed by
Implement. projects ® SAP Reference IMG. On the next screen, choose Basis Components System Administration ® Platform-independent File Names.
For a more detailed description of the function module FILE_GET_NAME, enter its name on the initial screen of the Function Builder and choose Goto Documentation. On the next screen, choose Function module doc.
Another way of maintaining platform-independent filenames is to use the Transaction FILE. The following sections provide an overview of the transaction.
To create a logical filename, choose Logical filename definition, client-independent from the Navigation group box in Transaction FILE, then choose New entries. You define logical filenames
You can either define a logical filename and link it to a logical path (as displayed here), or you can enter the full physical filename in the Physical file field. In the latter case, the logical filename is only valid for one operating system. The rules for entering the complete physical filename are the same as for the definition of the physical path for the logical file. To display further information and a list of reserved words, choose Help.
If you link a logical path to a logical file, the logical file is valid for all syntax groups that have been maintained for that logical path. The filename specified under Physical file replaces the reserved word in the physical paths that are assigned to the logical path. To make the name independent of the operating system, use names that begin with a letter, contain up to 8 letters, and do not contain special characters.
Save your changes.
regards,
Omkar.

Get Logical file name from Physical file name

Hi everybody,
Please how can i get Logical file name from Physical file name ?
Thanks & Regards
Hassan

Hi,
What i want is to get Logical file name from Physical file name, and not the opposite (get Physical file name from Logical file name).
Thanks & Regards,
Hassan

What is a Logical and Physical file path in sap?

what is a Logical and Physical file path in sap?

Hi,
Physical file is what you see from the OS level.
Logical file is what ABAP code can call certain functions to read/write.
Transaction FILE would link them together. Typically the logical path ends with "<FILENAME>", and the logical file refers to the logical path.
To extract the physical path from the logical path name
DATA: lf_mandt TYPE sy-mandt,
        lf_opsys TYPE sy-opsys.
lf_mandt = sy-mandt.
lf_opsys = sy-opsys.
To extract the physical path from the logical path name
CALL FUNCTION 'FILE_GET_NAME'
    EXPORTING
      client           = lf_mandt
      logical_filename = p_unix
      operating_system = lf_opsys
    IMPORTING
      file_name        = gwa_input
    EXCEPTIONS
      file_not_found   = 1
      OTHERS           = 2.
IF sy-subrc EQ 0.
Concatenating the physical path and the input unix file name
    CONCATENATE gwa_input p_file INTO gf_file .
ENDIF.
Reward if helpful.
Regards,
Ramya

Diff between logical and physical file path

Hi ,
Could you please explain difference between logical and physical file path's and their importance in ABAP.
Thanks and regards,
shyla

Hi
The function module FILE_GET_NAME convert a logical path into its corresponding physical path.
The advantage of using logical pathes within your applications is obivous:
If you need to change the physical path you just adjust it within transaction FILE yet no changes are required to your application.
http://help.sap.com/saphelp_erp2005vp/helpdata/en/25/ab3a57df3b11d189fc0000e829fbbd/frameset.htm
The file names that you use in ABAP statements for processing files are physical names. This means that they must be syntactically correct filenames for the operating system under which your R/3 System is running. Once you have created a file from an ABAP program with a particular name and path, you can find the same file using the same name and path at operating system level.
Since the naming conventions for files and paths differ from operating system to operating system, ABAP programs are only portable from one operating system to another if you use the tools described below.
To make programs portable, the R/3 System has a concept of logical filenames and paths. These are linked to physical files and paths. The links are created in special tables, which you can maintain according to your own requirements. In an ABAP program, you can then use the function module FILE_GET_NAME to generate a physical filename from a logical one.
Maintaining platform-independent filenames is part of Customizing. For a full description, choose Tools ® Business Engineer ® Customizing, followed by
Implement. projects ® SAP Reference IMG. On the next screen, choose Basis Components System Administration ® Platform-independent File Names.
For a more detailed description of the function module FILE_GET_NAME, enter its name on the initial screen of the Function Builder and choose Goto Documentation. On the next screen, choose Function module doc.
Another way of maintaining platform-independent filenames is to use the Transaction FILE. The following sections provide an overview of the transaction.
To create a logical filename, choose Logical filename definition, client-independent from the Navigation group box in Transaction FILE, then choose New entries. You define logical filenames
You can either define a logical filename and link it to a logical path (as displayed here), or you can enter the full physical filename in the Physical file field. In the latter case, the logical filename is only valid for one operating system. The rules for entering the complete physical filename are the same as for the definition of the physical path for the logical file. To display further information and a list of reserved words, choose Help.
If you link a logical path to a logical file, the logical file is valid for all syntax groups that have been maintained for that logical path. The filename specified under Physical file replaces the reserved word in the physical paths that are assigned to the logical path. To make the name independent of the operating system, use names that begin with a letter, contain up to 8 letters, and do not contain special characters.
Save your changes.

Logical and physical file paths

Hi,
can anyone elobrate me on what are logical and physical file
paths ?

hi,
Follow this link
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3deb358411d1829f0000e829fbfe/frameset.htm
File format determination (Required / optional fields and field checks).
Logical File Path configuration through transaction 'FILE'. A new physical file path should be created on operating system level or an existing one can be used if agreed. The Basis team member should create a new file path at operating system level, if required.
Hope this helps, Do reward.

I can not transfer date from one hard drive to another, I keep getting an error because I have two of the same file names and one file name is in caps and I cant change the file name

can not transfer date from one hard drive to another, I keep getting an error because I have two of the same file names and one file name is in caps and I cant change the file name. My original external has an error and needs to be reformatted but I dont want to lose this informations its my entire Itunes library.

Sounds like the source drive is formatted as case sensitive and the destination drive is not. The preferred format for OS X is case insensitive unless there is a compelling reason to go case sensitive.
Why can't you change the filename? Is it because the source drive is having problems? If so is this happening with only one or two or a few files? If so the best thing would be to copy those over individually and then rename them on the destination drive.
If it is more then you can do manually and you can't change the name on the source you will have to reformat the destination as case sensitive.
Btw this group is for discussion of the Support Communities itself, you;d do better posting to Lion group. I'll see if a host will move it.

Differnce between business name and physical name

What is the differnce between business name and physical name in OWB

Hi Vibhuti,
What I have noticed is that Physical name is THE important thing that is required while importing and synchronising. It has a length limitation of 30. The mappings appear with this name in the left panel in design center. The Business name is just for reference I believe.
Cheers,
Swagata

How can I download music files (MP3) and video files (AVI) to iPod Nano?

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Microsoft Windows XP Professional Service Pack 3 (Build 2600)
INTEL_ DG41RQ__
iTunes 11.1.3.8
QuickTime 7.2
FairPlay 2.5.16
Apple Application Support 2.3.6
iPod Updater Library 11.1f5
CD Driver 2.2.3.0
CD Driver DLL 2.1.3.1
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Apple Mobile Device Driver 1.64.0.0
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Gracenote SDK 1.9.6.502
Gracenote MusicID 1.9.6.115
Gracenote Submit 1.9.6.143
Gracenote DSP 1.9.6.45
iTunes Serial Number 0012B9B00CB27BC0
Current user is an administrator.
The current local date and time is 2013-12-22 23:15:54.
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Core Media is not supported. (16002)
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ATI RADEON XPRESS 200 Series
Intel(R) G41 Express Chipset
**** External Plug-ins Information ****
No external plug-ins installed.
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Network Adapter Information
Adapter Name:        {E4F794BB-151F-490C-8AC0-1EDB6DA3718A}
Description:             D-Link DWA-125 Wireless N 150 USB Adapter(rev.A2) - Packet Scheduler Miniport
IP Address:              192.168.5.104
Subnet Mask:          255.255.255.0
Default Gateway:     192.168.5.1
DHCP Enabled:       Yes
DHCP Server:          192.168.5.1
Lease Obtained:      Sun Dec 22 21:35:11 2013
Lease Expires:         Mon Dec 23 21:35:11 2013
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                                216.93.191.228
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Using Modem:         No
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Connection attempt to browsing iTunes Store was successful.
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No drivers in LowerFilters.
UpperFilters: GEARAspiWDM (2.2.3.0),
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iTunesHelper 11.1.3.8 is currently running.
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Hi fkerrin!
In case you haven’t already tried this process before, here is an article for you about syncing media to the iPod:
iTunes: Syncing media content to iPod
http://support.apple.com/kb/ht1351
Thanks for coming to the Apple Support Communities!
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FireFox 4 and earlier versions will not install on my Windows Vista, 64 bit computer. The file downloads and the file extracts but I never make it to the installation wizard.

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The SWF plugin for FF and the SWO for IE are also correct.
You shouldn't be having any problems with Flash Player.
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eidnolb

Logical Database design and physical database implementation

Hi
I am an ORACLE DBA basically and we started a proactive server dashboard portal ,which basically reports all aspects of our infrastructure (Dev,QA and Prod,performance,capacity,number of servers,No of CPU,decomissioned date,OS level,Database patch level) etc..
This has to be done entirely by our DBA team as this is not externally funded project.Now i was asked to do " Logical Database design and physical Database
implementation"
Even though i know roughly what's that mean(like designing whole set of tables in star schema format) ,i have never done this before.
In my mind i have a rough set of tables that can be used but again i think there is lot of engineering involved in this area to make sure that we do it properly.
I am wondering you guys might be having some recommendations for me in the sense where to start?are there any documents online , are there any book on this topic?Are there any documents which explain this phenomena with examples ?
Also exactly what is the difference between logical database design vs physical database implementation
Thanks and Regards

Logical database design is the process of taking a business or conceptual data model (often described in the form of an Entity-Relationship Diagram) and transforming that into a logical representation of that model using the specific semantics of the database management system. In the case of an RDBMS such as Oracle, this representation would be in the form of definitions of relational tables, primary, unique and foreign key constraints and the appropriate column data types supported by the RDBMS.
Physical database implementation is the process of taking the logical database design and translating that into the actual DDL statements supported by the target RDBMS that will create the database objects in a target RDBMS database. This will generally include specific physical implementation details such as the specification of tablespaces, use of specialised indexing (bitmap, clustered etc), partitioning, compression and anything else that relates to how data will actually be physically stored inside the database.
It sounds like you already have a physical implementation? If so, you can reverse engineer this implementation into a design tool such as SQL Developer Data Modeller. This will create a logical design by examining the contents of the Oracle data dictionary. Even if you don't have an existing database, Data Modeller is a good tool to use as a starting point for logical and even conceptual/business models.
If you want to read anything about logical design, "An Introduction to Database Systems" by Date is always a good starting point. "Database Systems - A Practical Approach to Design, Implementation and Management" by Connolly & Begg is also an excellent reference.

How to find output type givenSapscript form name and print program name

Hi Experts,
Can anyone tell me how to find the output type of a sapscript form if the print program name and sapscript form name is
known.

Hi,
There are two ways:
1. Use table TNAPR .. Here is table give PGNAM as your print program name and FONAM as form name.. Now the field KSCHL will be the output type assigned to your script.
2. You can also check the NACE t-code.. In that select a application(Corresponds to your area) -> click on Output types tab -> Here you get list of output type.. You need click on Processing Routine folder to get all other info..

What is the key column name and value column name in JDBC Adapter parameter

Hi
Can any one please tell me what is the Key Column Name and Key Column Value in JDBC adatper parameters. If i dont mention those parameters i am getting the following error
<b> Value missing for mandatory configuration attribute tableEOColumnNameId</b>
Please help me
Best Regards
Ravi Shankar B

Hi
I am doing DataBase Lookup in XI
First i have created a Table in Database( CheckUser) which has two fields UserName and PhoneNumber and then i have created
I have created one Communication Channel For Reciever Adapter .
I have given the parameters like this
JDBC Driver : com.microsoft.jdbc.sqlserver.SQLServerDriver
Connection : jdbc:microsoft:sqlserver://10.7.1.43:1433;DatabaseName=Ravi;
UserName.... sa
password.... sa
persistence : Database
Database Table Name : CheckUser
Key column name and Value column name i left blank and activated
and then
I have created
Data Types : Source ...... UserName
                  Destination.... PhoneNumber
Message Types
Message Interfaces
In Message Mapping
              I have created one User Defined function DBProcessing_SpecialAPI().This method will get the data from the database....
In this function i have written the following code
   //write your code here
String query = " ";
Channel channel = null;
DataBaseAccessor accessor = null;
DataBaseResult resultSet = null;
query = "select Password from CheckUser where UserName = ' " +UserName[0]+ " ' ";
try {
     channel = LookupService.getChannel("Ravi","CC_JDBC");
     accessor = LookupService.getDataBaseAccessor(channel);
     resultSet = accessor.execute(query);
     for(Iterator rows = resultSet.getRows();rows.hasNext();){
          Map rowMap = (Map)rows.next();
          result.addValue((String)rowMap.get("Password"));
catch(Exception e){
     result.addValue(e.getMessage());
finally{
     try{
          if(accessor != null)
               accessor.close();
     }catch(Exception e){
          result.addValue(e.getMessage());
And the i have mapped like this
UserName -
> DBProcessing_SpecialAPI----
>PhoneNumber
when i am testing this mapping i am getting the following error
<?xml version="1.0" encoding="UTF-8"?>
<ns0:Dest_JDBC_MT xmlns:ns0="http://filetofilescenario.com/ilg"><phoneNumber>Plain exception:Problem when calling an adapter by using communication channel CC_JDBC (Party: , Service: Ravi, Object ID: c360bc139a403293afbc49d5c46e4478) Check whether the communication channel exists in the Integration Directory; also check the cache notifications for the instance Integration Server (central Adapter-Engine) Channel object with Id Channel:c360bc139a403293afbc49d5c46e4478 not available in CPA Cache.
com.sap.aii.mapping.lookup.LookupException: Problem when calling an adapter by using communication channel CC_JDBC (Party: , Service: Ravi, Object ID: c360bc139a403293afbc49d5c46e4478) Check whether the communication channel exists in the Integration Directory; also check the cache notifications for the instance Integration Server (central Adapter-Engine) Channel object with Id Channel:c360bc139a403293afbc49d5c46e4478 not available in CPA Cache.
     at com.sap.aii.ibrun.server.lookup.AdapterProxyLocal.<init>(AdapterProxyLocal.java:61)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorInternal.getProxy(SystemAccessorInternal.java:98)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorInternal.<init>(SystemAccessorInternal.java:38)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorHmiServer.getConnection(SystemAccessorHmiServer.java:270)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorHmiServer.process(SystemAccessorHmiServer.java:70)
     at com.sap.aii.utilxi.hmis.server.HmisServiceImpl.invokeMethod(HmisServiceImpl.java:169)
     at com.sap.aii.utilxi.hmis.server.HmisServer.process(HmisServer.java:178)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:296)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:211)
     at com.sap.aii.utilxi.hmis.web.workers.HmisInternalClient.doWork(HmisInternalClient.java:70)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doWork(HmisServletImpl.java:496)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doPost(HmisServletImpl.java:634)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
</phoneNumber></ns0:Dest_JDBC_MT>
In RWB i have checked the status of JDBC driver its showing the following error
<b>Value missing for mandatory configuration attribute tableEOColumnNameId</b>
Best Regards
Ravi Shankar B
Message was edited by:
        RaviShankar B

What are the differences between file vault and legacy file vault?

what are the differences between file vault and legacy file vault?

Legacy is an encrypted disk image of your Home folder, FileVault2 is whole disk encryption

Logical file names and Physical file names

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