Difference b/w logical and phisical filke

Hi,
   could anybody help on this. what is the difference between logical file and phisical file in interfaces. and how to display logo using classes in alv grid.
eventhough i'm upoloading the logo to appln server using transaction'SE78' i'm not getting it in the output. i've tried it using transaction OAER also. please help on this one.
thanks.

hi,
Physical file is the original file
Logical file is used to refer (like pointer) the physical file and its path
for example physical file mm_test is stored in dir_temp-> test -> xxxx - > mm_text
the logical file contains all the details
cheers,
sasi

Similar Messages

  • Diff logical and physical doc

    Hello BW Experts,
    What is the difference between the logical and physical documents.
    Thanks,
    BWer

    hi BWer,
    take a look
    http://help.sap.com/saphelp_nw2004s/helpdata/en/4e/668867df6a5c4591a4dc46631f5cc3/frameset.htm
    http://help.sap.com/saphelp_nw2004s/helpdata/en/6c/69bd22418d11d1896e0000e8322d00/frameset.htm
    hope this helps.

  • Difference between logical and virtual terms

    Hello,
    This is not purely oracle question; but in documentation so many times we find 2 terms:
    A. Logical
    B.Virtual.
    So what is the principle difference between logical and virtual? As I know physical is that which I can see and touch; while logical/virtual is that is imaginary. We say tablespace is logical not virtual; while Java Virtual Machine; not Java Logical Machine. So I want to know; what is the principle difference; why two words for an imaginary thing. Before posting question; I searched in google as “Difference between virtual and logical” but I couldn’t found the answer.
    Please quote your comments.
    Thanks & Kind Regards
    Girish Sharma

    Girish,
    I wont say that I am correcting you as this is like that half glass full/empty thing.May be what I see is half empty , you would see the same as half full.
    Well now coming to the explanation.I am saying honestly , I got more confused after reading your definitions.What do you mean by saing that tablespace is not virtual.I see it as purely virtual.We don't say it as virtual tablespace or logical tablespace but it is actualy logical/virtual, having no existance but just the definition right?
    How can you say that the size of virtual is larger than logcial?The size of tablespace is actualy the sum total of size of datafiles.So it actualy becomes very larger right?Much larger than JVM which is of few megs only.
    The point 3 totally knocked me out.I have no idea what you said.
    Ok I tell you this.Just remember the definition that Hans gave already.If you ask me than its the best definition that we can have. Just remember this and if some one asks you more further than give them your point 3 definition and tell them understand this ;-).Please don'tmind I am just kidding. Its just semantics.Don't get lost into it.You will find many people using both the terms interchangibly. So its ok.I shall stick with Hans's defintion,simple and concise.There are lot more other topics to dig upon in oracle.I can mail you lots of them.Spend time on those.Don't think that I am demotivating you.I understand you asked only because you have a doubt.But we got a good resolution of it and beyond that, its not of much use to dig it atleast not in the technial terms.
    Cheers
    Aman....
    PS:Are you on oraclecommunity.net?

  • Difference between physical join and logical join

    Hi Gurus,
    Can anyone tell me what is the difference between physical join and logical join
    Thanks,
    Chandra

    Hi,
    A physical join is at the physical layer and defines the join between two physical tables. Logical joins live at the BMM (logical) layer and define a join between two logical tables.
    The important differentiation is that at the BMM layer you do not tell the OBIEE server how to do the join, you just tell it that there is a relationship between these two logical entities. When the server comes to this logical join it will use the information in the physical joins and decides how the two logical tables are joined together.
    In BMM you use complex joins to establish which logical tables are joined which another, the OBI EE server will go to the physical level to search the physical join to make the query. You can also use physical joins in the BMM to override the join in the physical layer but only in very specific conditions.
    If you also set complex join in the physical layer OBI EE won't be able to construct the physical query.
    Hope this answers your question.
    Award points if helpful.
    Thanks,
    -Amith.

  • Combinatorial logic difference between Spartan 6 and Spartan 3

    Hello,
    I'm porting a project from the Spartan 3 series to the Spartan 6 and encountered a difference in implementation between the two families. I've added the part of the code that is responsible for the difference in attachment. It's written fully combinatorial which I know is usually a bad idea, but I'll have to rewrite a much larger part of the project if I want to change this module to synchronous logic.
    The module itself is used in a motor H-bridge driver and checks if the desired current level in the motor is reached. If so, it starts a fixed freewheel (off) period which is implemented as a counter and decreased every time a pulse arives on the freewheelclk input. When this module is implemented on a Spartan 3, the counter correctly counts down every pulse. However it counts down only every 4 pulses on a Spartan 6.
    In behavioural simulation the code works fine, but Chipscope verified the counter value decreasing only every 4 pulses when actually running on the Spartan 6.
    I assume this is due to a difference in combinatorial logic (timing) in the slices, but find it difficult to pinpoint the exact problem. What is the best way to further analyse this problem and/or what could be a fix so this code behaves the same on both platforms?
    Additional details which I don't know are relevant:
    - The Spartan 3 project was in ISE 14.7, the Spartan 6 project is in Planahead 14.7
    - The Spartan 3 is a XC3S200-4TQG114C
    - The Spartan 6 is a XC6SLX9-2CSG225C

    Thanks for adding this details:
    I would like to focus on design functionality.
    The major difference in the in ISE/PlanAhead 14.7, with respect to synthesis is the XST synthesis parser.
    When Spartan-3 selected for a project in ISE/PA XST old parser is picked.
    When Spartan-6 selected for a project in ISE/PA XST New parser is picked.
    The important point to note is ISE and PlanaAhead default synthesis options are not same.
    I would still try to work with ISE 14.7 for spartan-6 ported design which is easy to understand the root cause of the incorrect behavior.
    In ISE 14.7, inorder to understand the difference is because of the parser, I would start verifying behavioral and Post-synthesis simulation.
    Try comparing the synthesis reports to understand if there is any difference in analyzing the code or optimization.
    You may share the project and the simulation test bench, if help needed in investigation.
    Regards,
    Achutha

  • What is difference between report programming and dialog programming?

    hi,
    what is difference between report programming and dialog programming? plz provide some example code
    bye

    ABAP programming
    Basically reports are used to read database and represent the results in lists.
    Reports are collections of processing blocks that the system calls depending on events.
    We can use reports to evaluate data from database tables.
    Reports are stand alone programs and controlled by events.
    A report itself never creates events
    steps in report:
    Processing the selection screen
    Reading the database
    Evaluating the data and creating lists
    Outputting a list.
    1st u write simple logics, after that u can enhance the code as step by step.
    http://venus.imp.mx/hilario/Libros/TeachYrslfAbap4/index.htm
    http://help.sap.com/saphelp_47x200/helpdata/en/d1/802cfc454211d189710000e8322d00/frameset.htm
    http://www.sapdev.co.uk/reporting/reportinghome.htm
    Dialog Programming
    Structure of a Dialog Program
    A dialog program consists of the following basic components:
    Screens (dynpros)
    Each dialog in an SAP system is controlled by dynpros. A dynpro (DYnamic PROgram) consists of a screen and its flow logic and controls exactly one dialog step. The flow logic determines which processing takes place before displaying the screen (PBO-Process Before Output) and after receiving the entries the user made on the screen (PAI-Process After Input).
    The screen layout fixed in the Screen Painter determines the positions of input/output fields, text fields, and graphical elements such as radio buttons and checkboxes. In addition, the Menu Painter allows to store menus, icons, pushbuttons, and function keys in one or more GUI statuses. Dynpros and GUI statuses refer to the ABAP/4 program that control the sequence of the dynpros and GUI statuses at runtime.
    ABAP/4 module pool
    Each dynpro refers to exactly one ABAP/4 dialog program. Such a dialog program is also called a module pool, since it consists of interactive modules. The flow logic of a dynpro contains calls of modules from the corresponding module pool. Interactive modules called at the PBO event are used to prepare the screen template in accordance to the context, for example by setting field contents or by suppressing fields from the display that are not needed. Interactive modules called at the PAI event are used to check the user input and to trigger appropriate dialog steps, such as the update task.
    All dynpros to be called from within one transaction refer to a common module pool. The dynpros of a module pool are numbered. By default, the system stores for each dynpro the dynpro to be displayed next. This dynpro sequence or chain can be linear as well as cyclic. From within a dynpro chain, you can even call another dynpro chain and, after processing it, return to the original chain.
    Check this link for basics.
    http://sap.mis.cmich.edu/sap-abap/abap09/index.htm
    Check this link for Dialog Programming/Table Control
    http://www.planetsap.com/Tips_and_Tricks.htm#dialog
    Check this SAP Help for Dialog Program doc.
    http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9cdc35c111d1829f0000e829fbfe/content.htm
    Check this SAP Help link for Subscreens.
    http://help.sap.com/saphelp_nw70/helpdata/en/9f/dbabfe35c111d1829f0000e829fbfe/content.htm
    Check this link for subscreen demo program.
    http://abapcode.blogspot.com/2007/05/demo-program-to-create-subscreen-in.html
    Also check this link too.
    http://abapcode.blogspot.com/2007/06/dialog-programming-faq.html
    http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9cdc35c111d1829f0000e829fbfe/frameset.htm
    http://sap.mis.cmich.edu/sap-abap/abap09/sld004.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/52/670ba2439b11d1896f0000e8322d00/frameset.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/52/670c17439b11d1896f0000e8322d00/frameset.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/52/670c17439b11d1896f0000e8322d00/frameset.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9ccf35c111d1829f0000e829fbfe/frameset.htm
    http://abapprogramming.blogspot.com/

  • What is difference between 32 bit and 64 bit sql server memory management

    What is difference between 32 bit and 64 bit sql server memory management
    Thanks
    Shashikala

    This is the basic difference...check if helps:
    A 32-bit CPU running 32-bit software (also known as the x86 platform) is so named because it is based on an architecture that can manipulate values that are up to 32 bits in length. This means that a 32-bit memory pointer can store a value between 0 and
    4,294,967,295 to reference a memory address. This equates to a maximum addressable space of 4GB on 32-bit platforms
    On the other hand 64-bit limit of 18,446,744,073,709,551,616, this number is so large that in memory/storage terminology it equates to 16 exabytes. You don’t come across that term very often, so to help understand the scale, here is the value converted to
    more commonly used measurements: 16 exabytes = 16,777,216 petabytes (16 million PB)➤ 17,179,869,184 terabytes (17 billion TB)➤ 17,592,186,044,416 gigabytes (17 trillion GB)➤
    As you can see, it is significantly larger than the 4GB virtual address space usable in 32-bit systems; it’s so large in fact that any hardware capable of using it all is sadly restricted to the realm of science fiction. Because of this, processor manufacturers
    decided to only implement a 44-bit address bus, which provides a virtual address space on 64-bit systems of 16TB. This was regarded as being more than enough address space for the foreseeable future and logically it’s split into an 8TB range for user mode
    and 8TB for kernel mode. Each 64-bit process running on an x64 platform will be able to address up to 8TB of VAS.
    Please click the Mark as answer button and vote as helpful if this reply solves your problem

  • Difference between unique constraint and unique index

    1. What is the difference between unique constraint and unique index when unique constraint is always indexed ? Which one is better in this case for better performance ?
    2. Is Composite index of 3 columns x,y,z better
    or having independent/ seperate indexes on 3 columns x,y,z is better for better performance ?
    3. It has been very confusing for me to decide which columns to index, I have indexed most foreignkey columns, is it a good idea ? We do lot of selects and DMLS on most of our tables. Is there any query that I can run and find out if indexes are really being used and if they are improving any performance. I have analyzed and computed my indexes using ANALYZE index index_name validate structure and COMPUTE STATISTICS;
    null

    1. Unique index is part of unique constraint. Of course you can create standalone unique index. But is is no point to skip the logical view of business if you spend same effort to achive.
    You create unique const. Oracle create the unique index for you. You may specify index characteristic in unique constraint.
    2. Depends. You can't utilize the composite index if the searching condition is not whole or front part of the indexing key. You can't utilize your index if you query the table for y=2. That is.
    3. As old words in database arena, Index may be good or bad for a table depending on the size of table, number of columns in the table... etc. It is very environmental dependent. In fact, It is part of database nomalization. Statistic is a way oracle use to determine the execution plan.
    Steve
    null

  • Difference b/w DATA TYPE and DATA OBJECT & differences b/w TYPE and LIKE

    hai
    can any one say the differences between Data type and Data Object.
    And also differences between TYPE and LIKE
    thanks
    Gani

    hi,
    _Data Types and Data Objects_
          Programs work with local program data – that is, with byte sequences in the working memory. Byte sequences that belong together are called fields and are characterized by a length, an identity (name), and – as a further attribute – by a data type. All programming languages have a concept that describes how the contents of a field are interpreted according to the data type.
          In the ABAP type concept, fields are called data objects. Each data object is thus an instance of an abstract data type. There are separate name spaces for data objects and data types. This means that a name can be the name of a data object as well as the name of a data type simultaneously.
    Data Types
       As well as occurring as attributes of a data object, data types can also be defined independently. You can then use them later on in conjunction with a data object. The definition of a user-defined data type is based on a set of predefined elementary data types. You can define data types either locally in the declaration part of a program using the TYPESstatement) or globally in the ABAP Dictionary. You can use your own data types to declare data objects or to check the types of parameters in generic operations.
         All programming languages distinguish between various types of data with various uses, such as ….. type data for storing or displaying values and numerical data for calculations. The attributes in question are described using data types. You can define, for example, how data is stored in the repository, and how the ABAP statements work with the data.
    Data types can be divided into elementary, reference, and complex types.
    a. Elementary Types
    These are data types of fixed or variable length that are not made up of other types.
    The difference between variable length data types and fixed length data types is that the length and the memory space required by data objects of variable length data types can change dynamically during runtime, and that these data types cannot be defined irreversibly while the data object is being declared.
    Predefined and User-Defined Elementary Data Types
    You can also define your own elementary data types in ABAP using the TYPES statement. You base these on the predefined data types. This determines all of the technical attributes of the new data type. For example, you could define a data type P_2 with two decimal places, based on the predefined data type P. You could then use this new type in your data declarations.
    b.  Reference Types
    Reference types are deep data types that describe reference variables, that is, data objects that contain references. A reference variable can be defined as a component of a complex data object such as a structure or internal table as well as a single field.
    c. Complex Data Types
    Complex data types are made up of other data types. A distinction is made here between structured types and table types.
    Data Objects
          Data objects are the physical units with which ABAP statements work at runtime. The contents of a data object occupy memory space in the program. ABAP statements access these contents by addressing the name of the data object and interpret them according to the data type.. For example, statements can write the contents of data objects in lists or in the database, they can pass them to and receive them from routines, they can change them by assigning new values, and they can compare them in logical expressions.
           Each ABAP data object has a set of technical attributes, which are fully defined at all times when an ABAP program is running (field length, number of decimal places, and data type). You declare data objects either statically in the declaration part of an ABAP program (the most important statement for this is DATA), or dynamically at runtime (for example, when you call procedures). As well as fields in the memory area of the program, the program also treats literals like data objects.
            A data object is a part of the repository whose content can be addressed and interpreted by the program. All data objects must be declared in the ABAP program and are not persistent, meaning that they only exist while the program is being executed. Before you can process persistent data (such as data from a database table or from a sequential file), you must read it into data objects first. Conversely, if you want to retain the contents of a data object beyond the end of the program, you must save it in a persistent form.
    Declaring Data Objects
          Apart from the interface parameters of procedures, you declare all of the data objects in an ABAP program or procedure in its declaration part. These declarative statements establish the data type of the object, along with any missing technical attributes. This takes place before the program is actually executed. The technical attributes can then be queried while the program is running.
         The interface parameters of procedures are generated as local data objects, but only when the procedure is actually called. You can define the technical attributes of the interface parameters in the procedure itself. If you do not, they adopt the attributes of the parameters from which they receive their values.
    ABAP contains the following kinds of data objects:
    a.  Literals
    Literals are not created by declarative statements. Instead, they exist in the program source code. Like all data objects, they have fixed technical attributes (field length, number of decimal places, data type), but no name. They are therefore referred to as unnamed data objects.
    b.  Named Data Objects
    Data objects that have a name that you can use to address the ABAP program are known as named objects. These can be objects of various types, including text symbols, variables and constants.
    Text symbols are pointers to texts in the text pool of the ABAP program. When the program starts, the corresponding data objects are generated from the texts stored in the text pool. They can be addressed using the name of the text symbol.
    Variables are data objects whose contents can be changed using ABAP statements. You declare variables using the DATA, CLASS-DATA, STATICS, PARAMETERS, SELECT-OPTIONS, and RANGESstatements.
    Constants are data objects whose contents cannot be changed. You declare constants using the CONSTANTSstatement.
    c.  Anonymous Data  Objects
    Data objects that cannot be addressed using a name are known as anonymous data objects. They are created using the CREATE DATAstatement and can be addressed using reference variables.
    d.  System-Defined Data Objects
    System-defined data objects do not have to be declared explicitly - they are always available at runtime.
    e.  Interface Work Areas
    Interface work areas are special variables that serve as interfaces between programs, screens, and logical databases. You declare interface work areas using the TABLES and NODESstatements.
    What is the difference between Type and Like?
    Answer1:
    TYPE, you assign datatype directly to the data object while declaring.
    LIKE,you assign the datatype of another object to the declaring data object. The datatype is referenced indirectly.
    Answer2:
    Type is a keyword used to refer to a data type whereas Like is a keyword used to copy the existing properties of already existing data object.
    Answer3:
    type refers the existing data type
    like refers the existing data object
    reward if useful
    thanks and regards
    suma sailaja pvn

  • The difference between FIELD-SYMBOL and normal DATA TYPE

    Dear experts,
    Please see the example below, both are output the same result.
    DATA: EXTERNAL_RECORD(4000),
          POSITION TYPE I,
          LENGTH TYPE N,
          ENTRY TYPE STRING.
    EXTERNAL_RECORD = '0005Smith0007Edwards0005Young'.
    DO.
      LENGTH = EXTERNAL_RECORD+POSITION(4).
      IF LENGTH = 0.
        EXIT.
      ENDIF.
      ADD 4 TO POSITION.
      MOVE EXTERNAL_RECORD+POSITION(LENGTH) TO ENTRY.
      WRITE ENTRY.
      ADD LENGTH TO POSITION.
      IF POSITION >= 4000.
        EXIT.
      ENDIF.
    ENDDO.
    --OR It can be written as--
    DATA: EXTERNAL_RECORD(4000),
          POSITION TYPE I,
          LENGTH TYPE N.
    FIELD-SYMBOLS <ENTRY>.
    EXTERNAL_RECORD = '0005Smith0007Edwards0005Young'.
    DO.
      LENGTH = EXTERNAL_RECORD+POSITION(4).
      IF LENGTH = 0.
        EXIT.
      ENDIF.
      ADD 4 TO POSITION.
      ASSIGN EXTERNAL_RECORD+POSITION(LENGTH) TO <ENTRY>.
      WRITE <ENTRY>.
      ADD LENGTH TO POSITION.
      IF POSITION >= 4000.
        EXIT.
      ENDIF.
    ENDDO.
    Is there any special circumstances we need to use FIELD-SYMBOL?
    Why is FIELD-SYMBOL is introduce in the first place?
    Kindly advice with example.
    Thanks in advance for those who can help me on this.

    HI,
    You can use field symbols to make the program more dynamic. In this example the name of a table control is substituted by a field symbol. Thus you cal call the form with any internal table, using the name of the table control as a parameter.
    Example
    form insert_row
    using p_tc_name.
    field-symbols <tc> type cxtab_control. "Table control
    assign (p_tc_name) to <tc>.
    insert 100 lines in table control
    <tc>-lines = 100.
    Field symbols allow you to:
    **     Assign an alias to a data object(for example, a shortened
            name for data objects structured through several hierarchies
            - <fs>-f instead of rec1-rec2-rec3-f)
    **     Set the offset and length for a string variably at runtime
    **     Set a pointer to a data object that you determine at runtime (dynamic ASSIGN)
    **     Adopt or change the type of a field dynamically at runtime
    **     Access components of a structure
    **     (from Release 4.5A) Point to lines of an internal table
            (process internal tables without a separate work area)
    Field symbols in ABAP are similar to pointers in other programming
    languages. However, pointers (as used in PASCAL or C) differ from ABAP
    field symbols in their reference syntax.
    The statement ASSIGN f to <fs> assigns the field f to field
    symbol <fs>. The field symbol <fs> then "points" to the
    contents of field f at runtime. This means that all changes to the
    contents of f are visible in <fs> and vice versa. You declare
    the field symbol <fs> using the statement FIELD-SYMBOLS: <fs>.
    Reference syntax
    Programming languages such as PASCAL and C use a dereferencing symbol
    to indicate the difference between a reference and the object to which
    it refers; so PASCAL would use p^ for a pointer instead of p, C would
    use *p instead of p. ABAP does not have any such dereferencing symbol.
    **     In PASCAL or C, if you assign a pointer p1 to a pointer p2,
    you force p1 to point to the object to which p2 refers (reference semantics).
    **     In ABAP, if you assign a field symbol <fs1> to a field
    symbol <fs2>, <fs1> takes the value of the data object to
    which <fs2> refers (value semantics).
    **     Field symbols in ABAP are always dereferenced, that is,
    they always access the referenced data object. If you want to
    change the reference yourself in ABAP, you can use the ASSIGN statement
    to assign field symbol <fs1> to field symbol <fs2>.
    Using field symbols
    You declare field symbols using the FIELD-SYMBOLS statement.
    They may be declared either with or without a specific type.
    At runtime you assign a field to the field symbol using the ASSIGN
    statement. All of the operations on the field symbol act on the field
    assigned to it.
    When you assign a field to an untyped field symbol, the field symbol
    adopts the type of the field. If, on the other hand, you want to assign
    a field to a typed field symbol, the type of the field and that of the
    field symbol must be compatible.
    A field symbol can point to any data object and from Release 4.5A,
    they can also point to lines of internal tables.
    The brackets (<>) are part of the syntax.
    Use the expression <fs> IS ASSIGNED to find out whether the field
    symbol <fs> is assigned to a field.
    The statement UNASSIGN <fs> sets the field symbol <fs> so
    that it points to nothing. The logical expression <fs>
    IS ASSIGNED is then false. The corresponding negative expression
    is IF NOT <fs> IS ASSIGNED.
    An unassigned field symbol <fs> behaves as a constant with
    type C(1) and initial value SPACE.
    MOVE <fs>
    TO dest     Transfers the initial value SPACE to the variable dest
    MOVE 'A' to <fs>     
    Not possible, since <fs> is a constant
    (runtime error).
    To lift a type restriction, use the CASTING addition in the
    ASSIGN statement. The data object is then interpreted as though
    it had the data type of the field symbol. You can also do this
    with untyped field symbols using the CASTING TYPE <type> addition.
    The danger with pointers is that they may point to invalid areas.
    This danger is not so acute in ABAP, because the language does not
    use address arithmetic (for example, in other languages, pointer p
    might point to address 1024. After the statement p = p + 10, it would
    point to the address 1034). However, the danger does still exist, and
    memory protection violations lead to runtime errors.
    A pointer in ABAP may not point beyond a segment boundary. ABAP does
    not have one large address space, but rather a set of segments.
    Each of the following has its own segment:
    *     All global data
    *     All local data
    *     Each table work area (TABLES)
    *     Each COMMON PART
    You should only let field symbols move within an elementary field or
    structure where ABAP allows you to assign both within the global data
    and beyond a field boundary.
    Rgds
    Umakanth

  • 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.

  • Diff  between logical and physical page ?

    hi
    what exactly difference between logical and physical pages?
    where to set page size in report designer?
    after seting paper size in report designer can i readjust in print dialogue box?
    which is will be effected?
    please explain

    A logical page can contain several physical pages. Assume you want to create a format which is larger then your printer is able to print, then you can define a logical size, which contains n pages horizontally and m pages vertically.
    To set the page size for your report have a look at the properties in the main section of your paper layout.
    Regards
    Rainer

  • Difference between the Logical System n Client

    Hi Guys,
      i need a some information plz help me.
    what r the differences between the logical system n the client.
    plz give me the detail explanation
    appreciated with points
    regards
    kk

    Hi there,
    'logical system' is used to identify an individual client in a system, for ALE
    communication between SAP systems. That's why you see a field for 'logical
    system' in the client master data in SCC4 (table T000).
    Client can be defined as commercial, organizational, and technical terms, a self-contained unit in an SAP system with separate master records and its own set of tables.
    Hope it helps
    Cheers
    Deepanshu

  • Difference between Business system and Business service.

    Hi All,
    Can any one explain in detail difference between Business system and Business service.
    As we commonly say, Business service is for those system which are not in our landscape.
    Can any one explain in which particular scenarios we will go for Business Service.
    Reg
    Bapuraj

    Hi Bapuraj,
    Business System
    Business system is a logical system, and there is an importance on physical existence of the system.Also SLD entry is required.
    It is generally used for SAP applications, this is just a general prinicple followed but not mandatory.
    Business Component(formerly Service)
    You use a Business Component, when you do not have the System details of the the partner system to which you want to communicate. i.e. you have not configured the partner system in SLD.
    Business Service is an Absract Unit with Sender and Receiver Interfaces,In this case you need to explicitly add the message interfaces while doing configuration in ID.
    It is generally used for NON-SAP applications, this is just a general prinicple followed but not mandatory.
    <REMOVED BY MODERATOR>
    <LINKS CAN BE SEARCHED FOR BASIC QUESTIONS>
    -santosh.
    Edited by: Prateek Raj Srivastava on Jan 12, 2012 10:01 PM

  • Difference betweeen     Technical systems and Business systems

    Hi
    In a SLD we need to configure  technical systems and Business systems.. what is the exact difference between  Technical Systems and Business Systems..
    this question is asked an interview.. for this.. how can we explain..
    thanks
    babu

    Hi babu
    First I let u know with analogy and actual definition as below
    Any module of SAP like MM, SRM, FICO ets makes a logical system in combination according to business requirements is a business system which is actualy hosted on an  application server like ABAP AS or Java AS which is basically a technical system.
    Technical systems are application systems that are installed in system landscape (a CRM server, for example). Most systems (Web AS ABAP and Web AS Java systems) automatically report information to the SLD about the elements that they contain by using the SLD data supplier programs. You need to manually register the following types of system only:
    Standalone Java systems
    Third-party systems
    Business systems are logical senders or receivers that exchange messages by using SAP XI and that are entered in the System Landscape Directory.
    The business systems in the System Landscape Directory relate to a system landscape.
    The business systems of business partners are not entered in the System Landscape Directory. To be able to address such business partners logically, use services in the Integration Directory. A business system is a way of specifying a service in the Integration Directory more precisely (business system service).
    Reward point if it help u understand

Maybe you are looking for