Structure or Internal table

Hi,
I am trying to create a function module to extract transaction data from R/3. Here, my question is: How do I transfer data from Interface table(E_T_DATA) to BW. Do I need to create(Define) an internal table in function module? or do I need to create a Structure in Data dictionary(SE11) and then define E_T_DATA LIKE (structure name or Internal table name)in the table parameters tab. I appreciate your help with points.
Thanks,
Rao.

Hi Rao,
You second option is correct.
i.e
you need to create a Structure in Data dictionary(SE11) and then define E_T_DATA LIKE (structure name or Internal table name)in the table parameters tab.
Are you using the function module RSAX_BIW_GET_DATA_SIMPLE as the
template to the FM to be used in Generic extraction?
With rgds,
Anil Kumar Sharma .P

Similar Messages

How to Read records from structure to internal table

HI,
Can any body know how to read the records from structure to internal table at runtime.
please give me sample program if possible.
thanks in advance
KP

if your internal table is having the same structure as the structure you are reading the values from then you can directly assign like..
internatable table work area or header line = structure.
or else if they are different assign field by field like
internal table-field1 = structure-field1.
internal table-field2 = structure-field2.
award points if it helps.

How to find out structure of internal table?

Hi
is there any way how to find out name of structure upon which internal
table was created?
i got internal table passed to function module by any table
type. There can be different types of table passed in. Inside of
module a need to find out the structure of table.
I've found a tricky way how to find this information using following
command 'DESCRIBE FIELD dobj INTO td.', but its probably not a correct
way because using this command is not recommended in application
programs.
Is there any function module, or something i can use for getting this information?
Thanks

Thanks very much
This has solved my problem:
DATA descr_ref TYPE ref to cl_abap_typedescr.
DATA tabname TYPE string.
descr_ref = cl_abap_typedescr=>describe_by_data( itab ).
tabname = descr_ref->absolute_name.

DIFF: Field string ,Structure and Internal table declaration

Hai,
       what is the diference between Field string ,Structure in ABAP program and Internal table declaration and how it will work ?
Thank you
ASHOK KUMAR.

hi,
Look this u will get a good idea.
*& Report ZTYPES                                                      *
REPORT ZTYPES                                                  .
* Table declaration (old method)
DATA: BEGIN OF tab_ekpo OCCURS 0,             "itab with header line
ebeln TYPE ekpo-ebeln,
ebelp TYPE ekpo-ebelp,
END OF tab_ekpo.
*Table declaration (new method)     "USE THIS WAY!!!
TYPES: BEGIN OF t_ekpo,
ebeln TYPE ekpo-ebeln,
ebelp TYPE ekpo-ebelp,
END OF t_ekpo.
DATA: it_ekpo TYPE STANDARD TABLE OF t_ekpo INITIAL SIZE 0,      "itab
      wa_ekpo TYPE t_ekpo.                    "work area (header line)
* Build internal table and work area from existing internal table
DATA: it_datatab LIKE tab_ekpo OCCURS 0,      "old method
      wa_datatab LIKE LINE OF tab_ekpo.
* Build internal table and work area from existing internal table,
* adding additional fields
TYPES: BEGIN OF t_repdata.
        INCLUDE STRUCTURE tab_ekpo. "could include EKKO table itself!!
TYPES: bukrs TYPE ekpo-werks,
       bstyp TYPE ekpo-bukrs.
TYPES: END OF t_repdata.
DATA: it_repdata TYPE STANDARD TABLE OF t_repdata INITIAL SIZE 0,   "itab
      wa_repdata TYPE t_repdata.                 "work area (header line)
Regards
Reshma

Dynamic Structures and Internal Tables

Hi All,
I am doing a report to create condition records based on the condition type and condition table. Assume the condition type as PR00 and it as condition table of 304,305,306.Each condition table as its own header and item fields.Based on the condition table that the user specifies in the selection screen
the header and item structures of my report should change dynamically and these should be moved to the dynamic internal table that contains both header and item fields.Can anyone give an idea how to achieve it. Thanks in advance.
Regards,
Chakradhar.

Hi All,
Thanks for your replies.
SPLIT i_string_line-input_str AT cl_abap_char_utilities=>horizontal_tab
INTO i_header_line-header
          i_header_line-vkorg
          i_header_line-vtweg
          i_header_line-pltyp
         i_header_line-waerk.
In the above syntax based on the condition table I selected on selection screen my flat file is as below.
case 1: If condition table given is 304
H    SalesOrganization    DistributionChannel    Customer
I    Material    Releasestatus    Amount    Currency    ValidFrom    ValidTo
case 2: If condition table given is 305
H    SalesOrganization    DistributionChannel
I    Material    Releasestatus    Amount    Currency    ValidFrom    ValidTo
case 3: If condition table given is 306
H    SalesOrganization    DistributionChannel     PriceListType     DocumentCurrency
I    Material    Releasestatus    Amount    Currency    ValidFrom    ValidTo
In the above code i_string_line-input_str contains the following heading of fields based on the condition table we select in selection screen.when I want to split them into respective fields
using INTO clause my structure should change dynamically.How can I achieve it and my entire program is in OOPS ALV.Thanks in Advance.
Regards,
Chakradhar.

How to structure the internal table issue I want to download to excel

Hi ,
I am trying to download the data from the internal table whose structure was
i HAVE ONE INTERNAL TABLE WHICH IS
123 ABC MIKE
123 ABC DALLAS
123 ABC BOMBAY
345 BCD MEENAL
345 BCD SHINDE
345 BCD UJWALA
I want the output the i WANT THE INTERNAL TABLE TO STRUCTURE IN THIS WAY
123 ABC MIKE
 DALLAS
 BOMBAY
345 BCD MEENAL
 SHINDE
 UJWALA

U have to fill internal table as ..
Loop at ITAB. <-- contains all the values
at new field2.
 itab1 = itab.
 append itab1.
 clear itab1.
 continue.
endat.
clear : itab-field1 , itab-field2.
itab1 = itab.
append itab1.
clear itab1.
endloop.
Now download ITAB1.

Modify the structure of internal table which created dynamically!!!

HI All,
I am creating internal table dynamically using the below syntax. Now I need to remove few of the fields from the internal table structure. Could you please help me how to go ahead in these cases?
* Create table dynamically for local data
CREATE DATA gv_table_l TYPE TABLE OF (<fs_tabname>).
CREATE DATA gv_wa_l TYPE (<fs_tabname>).
ASSIGN gv_table_l->* TO <fs_local_tab>.
ASSIGN gv_wa_l->* TO <fs_local_wa
>.
Please let me know if you have any thoughts.
Thanks,
Raghu.

Hi ,
check this wiki
[Internal Table|http://wiki.sdn.sap.com/wiki/display/Snippets/Howtocreateinternaltable+dynamically]
in your case ...
1.Get filed list based on the type ...make use of "cl_abap_datadescr=>describe_by_type('MARA'), check for syntax or sample programs...
2.Delete fields which you dont want to be in your internal table....
3.Create internal table using method " CL_ALV_TABLE_CREATE=>CREATE_DYNAMIC_TABLE" ref attached link for sample code by Pinaki...
regards
Prabhu

HOW TO CONVERT STRUCTURE INTO INTERNAL TABLE

HOW TO CONVERT STRUCTURE INTO INTERNAL TABLE

lets declare a structure --
data: begin of str,
      name(10),
      age(3),
      city(10),
      end of str.
lets now convert this to an internal table itab --
data itab like table of str.
I hope this helps
regards,
-pankaj singh

Structure and internal table

is it possible to made a report by using internal talbe and structure....if yes how and if u have sample code for that pls tell me....
raju

Hi Raju,
Yes. It is possible. But it depends upon your requirement. Please check the transaction ABAPDOCU for examples.
Here are some examples
http://www.sapgenie.com/abap/code/chap1201.txt
http://www.sapgenie.com/abap/code/chap0103.txt
http://www.sapgenie.com/abap/code/chap0407.txt
http://www.sapgenie.com/abap/code/chap1112.txt
There are many examples here.
http://www.sapgenie.com/abap/example_code.htm
Cheers
Vinod
Message was edited by: Vinod C

Determining internal table structure dynamically

Hi,
I have a number of internal tables in my program which I declare using types. As an example:
TYPES: begin of ty_hierarchy,
 control_id(6) type c,
 node_id(10) type c,
 node_name type bezei40,
 material type matnr,
 node_level type prodh_stuf,
 node_parent(10) type c,
 end of ty_hierarchy.
DATA: it_hierarchy type ty_hierarchy occurs 0.
Further down my program I need to determine the structure of internal table IT_HIERARCHY dynamically. Because I have a number of internal tables, I need to determine which internal table is being processed. Therefore it's important that I know the structure of the table that I'm currently processing.
I am aware of CL_ABAP* classes and functions like GET_COMPONENT_LIST. However because I have declared my tables using the TYPE statement the method/function cannot read my table structure correctly. If I changed my declaration to be as below, the method/function work! However I don't want to do this as I use field symbols to reference my internal tables and need to use the TYPE statement.
DATA: begin of ty_hierarchy,
 control_id(6) type c,
 node_id(10) type c,
 node_name type bezei40,
 material type matnr,
 node_level type prodh_stuf,
 node_parent(10) type c,
 end of ty_hierarchy.
DATA: begin of it_hierarchy occurs 0.
 include structure ty_hierarchy
DATA: end of it_hierarchy.
Does anyone know on how I can determine my internal table structure dynamically but still keeping my internal table declarations using TYPE statement?
Any help would be greatly appreciated with reward points .....
Thanks
Liam

Hello Liam
Both the ABAP-OO as well as the FM-based approach described by Eswar work well with your way of defining the itabs. I described three different ways how to get the structure of your itab dynamically:
- directly using the itab
- using a field symbol
- using a data reference
REPORT zus_sdn_dynamic_itabs.
TYPE-POOLS: abap.
TYPES: BEGIN OF ty_hierarchy,
control_id(6) TYPE c,
node_id(10) TYPE c,
node_name TYPE bezei40,
material TYPE matnr,
node_level TYPE prodh_stuf,
node_parent(10) TYPE c,
END OF ty_hierarchy.
DATA:
gs_hierarchy TYPE ty_hierarchy,
it_hierarchy TYPE ty_hierarchy OCCURS 0.
DATA:
gt_comp TYPE abap_compdescr_tab,
gs_comp_a LIKE LINE OF gt_comp,
gd_type TYPE abap_typekind,
gs_comp TYPE rstrucinfo,
it_comp TYPE TABLE OF rstrucinfo.
DATA:
go_struct TYPE REF TO cl_abap_structdescr,
go_table TYPE REF TO cl_abap_tabledescr,
gdo_data TYPE REF TO data.
FIELD-SYMBOLS:
<gt_itab> TYPE table.
START-OF-SELECTION.
GET REFERENCE OF it_hierarchy INTO gdo_data.
ASSIGN gdo_data->* TO <gt_itab>.
* (1) Describe directly by using the itab
* go_table ?= cl_abap_structdescr=>describe_by_data( it_hierarchy ).
* (2) Describe indirectly by using field symbol
* go_table ?= cl_abap_structdescr=>describe_by_data( <gt_itab> ).
* (3) Describe by data reference to itab
go_table ?= cl_abap_structdescr=>describe_by_data_ref( gdo_data ).
go_struct ?= go_table->get_table_line_type( ).
WRITE: / 'ABAP-OO Version:'.
gt_comp = go_struct->components.
LOOP AT gt_comp INTO gs_comp_a.
 WRITE: / gs_comp_a-name,
 gs_comp_a-length,
 gs_comp_a-type_kind,
 gs_comp_a-decimals.
ENDLOOP.
SKIP 2.
CALL FUNCTION 'GET_COMPONENT_LIST'
 EXPORTING
 program = sy-repid
 fieldname = 'GS_HIERARCHY'
 TABLES
 components = it_comp.
WRITE: / 'Function Module Version:'.
LOOP AT it_comp INTO gs_comp.
 WRITE: / gs_comp-compname,
 gs_comp-level,
 gs_comp-leng,
 gs_comp-type,
 gs_comp-olen,
 gs_comp-decs.
ENDLOOP.
END-OF-SELECTION.
Regards
Uwe

Create object/structure like dynamic internal table

Hi,
We have created dynamic internal table with some fields.
for the above how to create structure or internal table like dynamic internal table structure .
Scenario: internal table itab1 ( with header line) have 5 fields.
Based on some of the conditions in layout of the report.
we have to create dynamic internal table.
field-symbols: <FS> type standard table.
we are able to create dynamic internal table with 3 fields
with assignment <fs> = itab1[]
the columns are not appearing but data appearing in next column.
how to solve this one
Thanks
Ramesh

Hi Ramesh,
I hope this code works...
report yup_alv_datbase .
*-Display Database table contents in ALV Grid Format
>********************************************************************
This report displays data from SAP tables, views (like SE16) *
FM : REUSE_ALV_GRID_DISPLAY *
tables:
dd02l, " SAP tables
dd03l. " Table Fields
type-pools: slis. " ALV Global Types
selection-screen :
begin of line, comment 1(35) v_1 for field p_table. "#EC NEEDED
parameters p_table like dd03l-tabname obligatory memory id dtb.
selection-screen end of line.
selection-screen :
begin of line, comment 1(35) v_2 for field p_max. "#EC NEEDED
parameters p_max(2) type n default '20' obligatory.
selection-screen end of line.
at selection-screen.
select single * from dd02l where tabname = p_table
 and as4local = 'A'
 and as4vers = '0000'.
if sy-subrc ne 0.
Table & is not active in the Dictionary
 message e402(mo) with p_table.
elseif dd02l-tabclass = 'INTTAB'.
& is a structure, not a table
 message e403(mo) with p_table.
endif.
initialization.
v_1 = 'Table'.
v_2 = 'Maximum of records'.
start-of-selection.
perform f_display_data.
 Form F_DISPLAY_DATA
form f_display_data.
Macro definition
define m_sort.
 add 1 to ls_sort-spos.
 ls_sort-fieldname = &1.
 ls_sort-up = 'X'.
 append ls_sort to lt_sort.
end-of-definition.
data:
 l_long type i,
 lp_struct type ref to data,
 lp_table type ref to data, " Pointer to dynamic table
 of_sdescr type ref to cl_abap_structdescr,
 ls_lvc_cat type lvc_s_fcat,
 lt_lvc_cat type lvc_t_fcat, " Field catalog
 ls_fieldcat type slis_fieldcat_alv,
 lt_fieldcat type slis_t_fieldcat_alv, " Field catalog
 ls_layout type slis_layout_alv,
 lt_sort type slis_t_sortinfo_alv, " Sort table
 ls_sort type slis_sortinfo_alv.
field-symbols :
 <fieldcat> type slis_fieldcat_alv,
 <lt_data> type table, " Data to display
 <fs> type any,
 <components> type abap_compdescr.
Dynamic creation of a structure
create data lp_struct type (p_table).
assign lp_struct->* to <fs>.
Fields Structure
of_sdescr ?= cl_abap_typedescr=>describe_by_data( <fs> ).
loop at of_sdescr->components assigning <components>.
Field MANDT not displayed
 if sy-tabix = 1 and <components>-name = 'MANDT'.
 continue. " Next loop
 endif.
Build Fieldcatalog
 ls_lvc_cat-fieldname = <components>-name.
 ls_lvc_cat-ref_table = p_table.
 append ls_lvc_cat to lt_lvc_cat.
Build Fieldcatalog
 ls_fieldcat-fieldname = <components>-name.
 ls_fieldcat-ref_tabname = p_table.
 append ls_fieldcat to lt_fieldcat.
endloop.
Create internal table
call method cl_alv_table_create=>create_dynamic_table
 exporting it_fieldcatalog = lt_lvc_cat
 importing ep_table = lp_table.
assign lp_table->* to <lt_data>.
Read data
select * from (p_table) up to p_max rows
 into corresponding fields of table <lt_data>
 order by primary key.
if <lt_data>[] is initial.
No table entries found for specified key
 message i429(mo).
 exit.
endif.
Read key field to Build Sort Table
select * from dd03l where tabname = p_table
 and fieldname <> '.INCLUDE'
 and as4vers = '0000'
 and as4local = 'A'
 order by position.
 read table lt_fieldcat assigning <fieldcat>
 with key fieldname = dd03l-fieldname.
 check sy-subrc eq 0.
 add dd03l-leng to l_long.
 if dd03l-keyflag = 'X'.
 Build Sort Table
 m_sort dd03l-fieldname.
 <fieldcat>-key = 'X'.
 elseif l_long > 150.
 <fieldcat>-tech = 'X'.
 endif.
endselect.
ls_layout-zebra = 'X'.
ls_layout-colwidth_optimize = 'X'.
call function 'REUSE_ALV_GRID_DISPLAY'
 exporting
 is_layout = ls_layout
 it_fieldcat = lt_fieldcat
 it_sort = lt_sort
 tables
 t_outtab = <lt_data>.
endform. " F_DISPLAY_DATA
END OF PROGRAM Z_ALV_DYNAMIC_DATA *********************
Regards,
Sampath

Internal Table and Structures

Hi,
I am a beginer. I know how to create a structure and how to create an internal table using ABAP/4. My problem is, i don't understand where to use internal table and structure, also i find myself very confused about the explicit work areas.
Plese someone show me a program by explaining all of this clearly.

Hi
Internal tables are the core of ABAP. They are like soul of a body. For any program we use
internal tables extensively. We can use Internal tables like normal data base tables only, but the
basic difference is the memory allocated for internal tables is temporary. Once the program is
closed the memory allocated for internal tables will also be out of memory.
But while using the internal tables, there are many performance issues to be considered. i.e which
type of internal table to be used for the program..like standard internal table, hashed internal
table or sorted internal table etc..
Internal tables
Internal tables provide a means of taking data from a fixed structure and storing it in working memory in ABAP. The data is stored line by
line in memory, and each line has the same structure. In ABAP, internal tables fulfill the function of arrays. Since they are dynamic data
objects, they save the programmer the task of dynamic memory management in his or her programs. You should use internal tables
whenever you want to process a dataset with a fixed structure within a program. A particularly important use for internal tables is for
storing and formatting data from a database table within a program. They are also a good way of including very complicated data
structures in an ABAP program.
Like all elements in the ABAP type concept, internal tables can exist both as data types and as data objects A data type is the abstract
description of an internal table, either in a program or centrally in the ABAP Dictionary, that you use to create a concrete data object. The
data type is also an attribute of an existing data object.
Internal Tables as Data Types
Internal tables and structures are the two structured data types in ABAP. The data type of an internal table is fully specified by its line type,
key, and table type.
Line type
The line type of an internal table can be any data type. The data type of an internal table is normally a structure. Each component of the
structure is a column in the internal table. However, the line type may also be elementary or another internal table.
Key
The key identifies table rows. There are two kinds of key for internal tables - the standard key and a user-defined key. You can specify
whether the key should be UNIQUE or NON-UNIQUE. Internal tables with a unique key cannot contain duplicate entries. The uniqueness
depends on the table access method.
If a table has a structured line type, its default key consists of all of its non-numerical columns that are not references or themselves
internal tables. If a table has an elementary line type, the default key is the entire line. The default key of an internal table whose line type
is an internal table, the default key is empty.
The user-defined key can contain any columns of the internal table that are not references or themselves internal tables. Internal tables
with a user-defined key are called key tables. When you define the key, the sequence of the key fields is significant. You should remember
this, for example, if you intend to sort the table according to the key.
Table type
The table type determines how ABAP will access individual table entries. Internal tables can be divided into three types:
Standard tables have an internal linear index. From a particular size upwards, the indexes of internal tables are administered as trees. In
this case, the index administration overhead increases in logarithmic and not linear relation to the number of lines. The system can access
records either by using the table index or the key. The response time for key access is proportional to the number of entries in the table.
The key of a standard table is always non-unique. You cannot specify a unique key. This means that standard tables can always be filled
very quickly, since the system does not have to check whether there are already existing entries.
Sorted tables are always saved sorted by the key. They also have an internal index. The system can access records either by using the
table index or the key. The response time for key access is logarithmically proportional to the number of table entries, since the system
uses a binary search. The key of a sorted table can be either unique or non-unique. When you define the table, you must specify whether
the key is to be unique or not. Standard tables and sorted tables are known generically as index tables.
Hashed tables have no linear index. You can only access a hashed table using its key. The response time is independent of the number of
table entries, and is constant, since the system access the table entries using a hash algorithm. The key of a hashed table must be unique.
When you define the table, you must specify the key as UNIQUE.
Generic Internal Tables
Unlike other local data types in programs, you do not have to specify the data type of an internal table fully. Instead, you can specify a
generic construction, that is, the key or key and line type of an internal table data type may remain unspecified. You can use generic
internal tables to specify the types of field symbols and the interface parameters of procedures . You cannot use them to declare data
objects.
Internal Tables as Dynamic Data Objects
Data objects that are defined either with the data type of an internal table, or directly as an internal table, are always fully defined in
respect of their line type, key and access method. However, the number of lines is not fixed. Thus internal tables are dynamic data objects,
since they can contain any number of lines of a particular type. The only restriction on the number of lines an internal table may contain are
the limits of your system installation. The maximum memory that can be occupied by an internal table (including its internal administration)
is 2 gigabytes. A more realistic figure is up to 500 megabytes. An additional restriction for hashed tables is that they may not contain more
than 2 million entries. The line types of internal tables can be any ABAP data types - elementary, structured, or internal tables. The
individual lines of an internal table are called table lines or table entries. Each component of a structured line is called a column in the
internal table.
Choosing a Table Type
The table type (and particularly the access method) that you will use depends on how the typical internal table operations will be most
frequently executed.
Standard tables
This is the most appropriate type if you are going to address the individual table entries using the index. Index access is the quickest
possible access. You should fill a standard table by appending lines (ABAP APPEND statement), and read, modify and delete entries by
specifying the index (INDEX option with the relevant ABAP command). The access time for a standard table increases in a linear relationship
with the number of table entries. If you need key access, standard tables are particularly useful if you can fill and process the table in
separate steps. For example, you could fill the table by appending entries, and then sort it. If you use the binary search option with key
access, the response time is logarithmically proportional to the number of table entries.
Sorted tables
This is the most appropriate type if you need a table which is sorted as you fill it. You fill sorted tables using the INSERT statement. Entries
are inserted according to the sort sequence defined through the table key. Any illegal entries are recognized as soon as you try to add
them to the table. The response time for key access is logarithmically proportional to the number of table entries, since the system always
uses a binary search. Sorted tables are particularly useful for partially sequential processing in a LOOP if you specify the beginning of the
table key in the WHERE condition.
Hashed tables
This is the most appropriate type for any table where the main operation is key access. You cannot access a hashed table using its index.
The response time for key access remains constant, regardless of the number of table entries. Like database tables, hashed tables always
have a unique key. Hashed tables are useful if you want to construct and use an internal table which resembles a database table or for
processing large amounts of data.
Creating Internal Tables
Like other elements in the ABAP type concept, you can declare internal tables as abstract data
types in programs or in the ABAP Dictionary, and then use them to define data objects.
Alternatively, you can define them directly as data objects. When you create an internal table as a
data object, you should ensure that only the administration entry which belongs to an internal
table is declared statically. The minimum size of an internal table is 256 bytes. This is important if an
internal table occurs as a component of an aggregated data object, since even empty internal
tables within tables can lead to high memory usage. (In the next functional release, the size of the
table header for an initial table will be reduced to 8 bytes). Unlike all other ABAP data objects, you
do not have to specify the memory required for an internal table. Table rows are added to and
deleted from the table dynamically at runtime by the various statements for adding and deleting
records.
You can create internal tables in different types.
You can create standard internal table and then make it sort in side the program.
The same way you can change to hashed internal tables also.
There will be some performance issues with regard to standard internal tables/ hashed internal
tables/ sorted internal tables.
Internal table types
This section describes how to define internal tables locally in a program. You can also define internal tables globally as data types in the
ABAP Dictionary.
Like all local data types in programs , you define internal tables using the TYPES statement. If you do not refer to an existing table type
using the TYPE or LIKE addition, you can use the TYPES statement to construct a new local internal table in your program.
TYPES <t> TYPE|LIKE <tabkind> OF <linetype> [WITH <key>]
[INITIAL SIZE <n>].
After TYPE or LIKE, there is no reference to an existing data type. Instead, the type constructor occurs:
<tabkind> OF <linetype> [WITH <key>]
The type constructor defines the table type <tabkind>, the line type <linetype>, and the key <key> of the internal table <t>.
You can, if you wish, allocate an initial amount of memory to the internal table using the INITIAL SIZE addition.
Table type
You can specify the table type <tabkind> as follows:
Generic table types
INDEX TABLE
For creating a generic table type with index access.
ANY TABLE
For creating a fully-generic table type.
Data types defined using generic types can currently only be used for field symbols and for interface parameters in procedures . The generic
type INDEX TABLE includes standard tables and sorted tables. These are the two table types for which index access is allowed. You cannot
pass hashed tables to field symbols or interface parameters defined in this way. The generic type ANY TABLE can represent any table. You
can pass tables of all three types to field symbols and interface parameters defined in this way. However, these field symbols and
parameters will then only allow operations that are possible for all tables, that is, index operations are not allowed.
Fully-Specified Table Types
STANDARD TABLE or TABLE
For creating standard tables.
SORTED TABLE
For creating sorted tables.
HASHED TABLE
For creating hashed tables.
Fully-specified table types determine how the system will access the entries in the table in key operations. It uses a linear search for
standard tables, a binary search for sorted tables, and a search using a hash algorithm for hashed tables.
Line type
For the line type <linetype>, you can specify:
Any data type if you are using the TYPE addition. This can be a predefined ABAP type, a local type in the program, or a data type from the
ABAP Dictionary. If you specify any of the generic elementary types C, N, P, or X, any attributes that you fail to specify (field length, number
of decimal places) are automatically filled with the default values. You cannot specify any other generic types.
Any data object recognized within the program at that point if you are using the LIKE addition. The line type adopts the fully-specified data
type of the data object to which you refer. Except for within classes, you can still use the LIKE addition to refer to database tables and
structures in the ABAP Dictionary (for compatibility reasons).
All of the lines in the internal table have the fully-specified technical attributes of the specified data type.
Key
You can specify the key <key> of an internal table as follows:
[UNIQUE|NON-UNIQUE] KEY <col1> ... <col n>
In tables with a structured line type, all of the components <coli> belong to the key as long as they are not internal tables or references,
and do not contain internal tables or references. Key fields can be nested structures. The substructures are expanded component by
component when you access the table using the key. The system follows the sequence of the key fields.
[UNIQUE|NON-UNIQUE] KEY TABLE LINE
If a table has an elementary line type (C, D, F, I, N, P, T, X), you can define the entire line as the key. If you try this for a table whose line
type is itself a table, a syntax error occurs. If a table has a structured line type, it is possible to specify the entire line as the key. However,
you should remember that this is often not suitable.
[UNIQUE|NON-UNIQUE] DEFAULT KEY
This declares the fields of the default key as the key fields. If the table has a structured line type, the default key contains all non-numeric
columns of the internal table that are not and do not contain references or internal tables. If the table has an elementary line type, the
default key is the entire line. The default key of an internal table whose line type is an internal table, the default key is empty.
Specifying a key is optional. If you do not specify a key, the system defines a table type with an arbitrary key. You can only use this to
define the types of field symbols and the interface parameters of procedures . For exceptions, refer to Special Features of Standard Tables.
The optional additions UNIQUE or NON-UNIQUE determine whether the key is to be unique or non-unique, that is, whether the table can
accept duplicate entries. If you do not specify UNIQUE or NON-UNIQUE for the key, the table type is generic in this respect. As such, it can
only be used for specifying types. When you specify the table type simultaneously, you must note the following restrictions:
You cannot use the UNIQUE addition for standard tables. The system always generates the NON-UNIQUE addition automatically.
You must always specify the UNIQUE option when you create a hashed table.
Initial Memory Requirement
You can specify the initial amount of main memory assigned to an internal table object when you define the data type using the following
addition:
INITIAL SIZE <n>
This size does not belong to the data type of the internal table, and does not affect the type check. You can use the above addition to
reserve memory space for <n> table lines when you declare the table object.
When this initial area is full, the system makes twice as much extra space available up to a limit of 8KB. Further memory areas of 12KB each
are then allocated.
You can usually leave it to the system to work out the initial memory requirement. The first time you fill the table, little memory is used. The
space occupied, depending on the line width, is 16 <= <n> <= 100.
It only makes sense to specify a concrete value of <n> if you can specify a precise number of table entries when you create the table and
need to allocate exactly that amount of memory (exception: Appending table lines to ranked lists). This can be particularly important for
deep-structured internal tables where the inner table only has a few entries (less than 5, for example).
To avoid excessive requests for memory, large values of <n> are treated as follows: The largest possible value of <n> is 8KB divided by the
length of the line. If you specify a larger value of <n>, the system calculates a new value so that n times the line width is around 12KB.
Examples
TYPES: BEGIN OF LINE,
COLUMN1 TYPE I,
COLUMN2 TYPE I,
COLUMN3 TYPE I,
END OF LINE.
TYPES ITAB TYPE SORTED TABLE OF LINE WITH UNIQUE KEY COLUMN1.
The program defines a table type ITAB. It is a sorted table, with line type of the structure LINE and a unique key of the component
COLUMN1.
TYPES VECTOR TYPE HASHED TABLE OF I WITH UNIQUE KEY TABLE LINE.
TYPES: BEGIN OF LINE,
COLUMN1 TYPE I,
COLUMN2 TYPE I,
COLUMN3 TYPE I,
END OF LINE.
TYPES ITAB TYPE SORTED TABLE OF LINE WITH UNIQUE KEY COLUMN1.
TYPES: BEGIN OF DEEPLINE,
FIELD TYPE C,
TABLE1 TYPE VECTOR,
TABLE2 TYPE ITAB,
END OF DEEPLINE.
TYPES DEEPTABLE TYPE STANDARD TABLE OF DEEPLINE
WITH DEFAULT KEY.
The program defines a table type VECTOR with type hashed table, the elementary line type I and a unique key of the entire table line. The
second table type is the same as in the previous example. The structure DEEPLINE contains the internal table as a component. The table
type DEEPTABLE has the line type DEEPLINE. Therefore, the elements of this internal table are themselves internal tables. The key is the
default key - in this case the column FIELD. The key is non-unique, since the table is a standard table.
Internal table objects
Internal tables are dynamic variable data objects. Like all variables, you declare them using the DATA statement. You can also declare static
internal tables in procedures using the STATICS statement, and static internal tables in classes using the CLASS-DATA statement. This
description is restricted to the DATA statement. However, it applies equally to the STATICS and CLASS-DATA statements.
Reference to Declared Internal Table Types
Like all other data objects, you can declare internal table objects using the LIKE or TYPE addition of the DATA statement.
DATA <itab> TYPE <type>|LIKE <obj> [WITH HEADER LINE].
Here, the LIKE addition refers to an existing table object in the same program. The TYPE addition can refer to an internal type in the
program declared using the TYPES statement, or a table type in the ABAP Dictionary.
You must ensure that you only refer to tables that are fully typed. Referring to generic table types (ANY TABLE, INDEX TABLE) or not
specifying the key fully is not allowed (for exceptions, refer to Special Features of Standard Tables).
The optional addition WITH HEADER line declares an extra data object with the same name and line type as the internal table. This data
object is known as the header line of the internal table. You use it as a work area when working with the internal table (see Using the
Header Line as a Work Area). When you use internal tables with header lines, you must remember that the header line and the body of the
table have the same name. If you have an internal table with header line and you want to address the body of the table, you must indicate
this by placing brackets after the table name (<itab>[]). Otherwise, ABAP interprets the name as the name of the header line and not of the
body of the table. You can avoid this potential confusion by using internal tables without header lines. In particular, internal tables nested
in structures or other internal tables must not have a header line, since this can lead to ambiguous expressions.
TYPES VECTOR TYPE SORTED TABLE OF I WITH UNIQUE KEY TABLE LINE.
DATA: ITAB TYPE VECTOR,
JTAB LIKE ITAB WITH HEADER LINE.
MOVE ITAB TO JTAB. <- Syntax error!
MOVE ITAB TO JTAB[].
The table object ITAB is created with reference to the table type VECTOR. The table object JTAB has the same data type as ITAB. JTAB also
has a header line. In the first MOVE statement, JTAB addresses the header line. Since this has the data type I, and the table type of ITAB
cannot be converted into an elementary type, the MOVE statement causes a syntax error. The second MOVE statement is correct, since
both operands are table objects.
Declaring New Internal Tables
You can use the DATA statement to construct new internal tables as well as using the LIKE or TYPE addition to refer to existing types or
objects. The table type that you construct does not exist in its own right; instead, it is only an attribute of the table object. You can refer to
it using the LIKE addition, but not using TYPE. The syntax for constructing a table object in the DATA statement is similar to that for defining
a table type in the TYPES statement.
DATA <itab> TYPE|LIKE <tabkind> OF <linetype> WITH <key>
[INITIAL SIZE <n>]
[WITH HEADER LINE].
As when you define a table type , the type constructor
<tabkind> OF <linetype> WITH <key>
defines the table type <tabkind>, the line type <linekind>, and the key <key> of the internal table <itab>. Since the technical attributes of
data objects are always fully specified, the table must be fully specified in the DATA statement. You cannot create generic table types (ANY
TABLE, INDEX TABLE), only fully-typed tables (STANDARD TABLE, SORTED TABLE, HASHED TABLE). You must also specify the key and whether
it is to be unique (for exceptions, refer to Special Features of Standard Tables).
As in the TYPES statement, you can, if you wish, allocate an initial amount of memory to the internal table using the INITIAL SIZE addition.
You can create an internal table with a header line using the WITH HEADER LINE addition. The header line is created under the same
conditions as apply when you refer to an existing table type.
DATA ITAB TYPE HASHED TABLE OF SPFLI
WITH UNIQUE KEY CARRID CONNID.
The table object ITAB has the type hashed table, a line type corresponding to the flat structure SPFLI from the ABAP Dictionary, and a
unique key with the key fields CARRID and CONNID. The internal table ITAB can be regarded as an internal template for the database table
SPFLI. It is therefore particularly suitable for working with data from this database table as long as you only access it using the key.

Structure & Internal Tables

What is the difference between Structure & Internal Tables,
Regards.

Hi chidambar,
to say simply the internal table can have data within it but a structure is that which can be used by an internal table to define its columns ,it cannot have data on its own
coming to thoery this may help you,but dont confuse more with the theory
Structures
A structure is a sequence of any elementary types, reference types, or complex data types.
You use structures in ABAP programs to group work areas that logically belong together. Since the elements of a structure can have any data type, structures can have a large range of uses. For example, you can use a structure with elementary data types to display lines from a database table within a program. You can also use structures containing aggregated elements to include all of the attributes of a screen or control in a single data object.
The following terms are important when we talk about structures:
Nested and non-nested structures
Flat and deep structures
A nested structure is a structure that contains one or more other structures as components. Flat structures contain only elementary data types with a fixed length (no internal tables, reference types, or strings). The term deep structure can apply regardless of whether the structure is nested or not. Nested structures are flat so long as none of the above types is contained in any nesting level.
Any structure that contains at least one internal table, reference type, or string as a component (regardless of nesting) is a deep structure. Accordingly, internal tables, references, and strings are also known as deep data types. The technical difference between deep structures and all others is as follows. When you create a deep structure, the system creates a pointer in memory that points to the real field contents or other administrative information. When you create a flat data type, the actual field contents are stored with the type in memory. Since the field contents are not stored with the field descriptions in the case of deep structures, assignments, offset and length specifications and other operations are handled differently from flat structures.
Internal Tables
Internal tables consists of a series of lines that all have the same data type. Internal tables are characterized by:
The line type, which can be any elementary type, reference type, or complex data type.
The key identifies table rows. It is made up of the elementary fields in the line. The key can be unique or non-unique.
The access method determines how ABAP will access individual table entries. There are three access types, namely unsorted tables, sorted index tables and hash tables. For index tables, the system maintains a linear index, so you can access the table either by specifying the index or the key.
Hashed tables have no linear index. You can only access hashed tables by specifying the key. The system has its own hash algorithm for managing the table.
You should use internal tables whenever you need to use structured data within a program. One imprint use is to store data from the database within a program.
plz reward if helpful,
plz get back to me for further queries.
thanks and regards,
srikanth tulasi.

Doubts with control break statements on internal table loops (AT/ENDAT)

Hi, i've had a couple of doubts for a long while which I hope someone can clarify today:
1) I know how to use the AT statements, however, i'm not sure I get correctly what this part of help regarding this commands means:
"The control level structure with internal tables is static. It corresponds exactly to the sequence of columns in the internal table (from left to right). In this context, the criteria according to which you sort the internal table are unimportant."
I've always sorted the internal table before the control break and it works that way. For example:
SORT ITAB BY EBELN EBELP.
LOOP AT ITAB.
AT NEW EBELN.
* Code for the order header
ENDAT.
ENDLOOP.
If I don't sort the internal table, it doesn't work! (i get dupplicated processing). In the example, if i have more than one register with the same EBELN and they're not consecutive, the header gets processed twice. I really don't get that part of the help text.
2) I know this: "At the start of a new control level (i.e. immediately after AT), the following occurs in the output area of the current LOOP statement:
All character type fields (on the right) are filled with "*" after the current control level key.
All other fields (on the right) are set to their initial values after the current control level key."
My doubt is: WHY is that this way? Because sometimes (most times) I need those fields INSIDE the statement! So when that happened i've solved it in one of three ways:
LOOP AT ITAB INTO WA_ITAB.
WA_ITAB_AUX = WA_ITAB.
AT NEW FIELD.
 WA_ITAB = WA_ITAB_AUX.
* ...Rest of the code for the first register
ENDAT.
ENDLOOP.
LOOP AT ITAB INTO WA_ITAB.
AT NEW FIELD.
 READ TABLE ITAB INDEX SY-TABIX INTO WA_ITAB.
* ...Rest of the code for the first register
ENDAT.
ENDLOOP.
* (Without AT)
LOOP AT ITAB INTO WA_ITAB.
IF WA_ITAB-FIELD <> FIELD_AUX.
 FIELD_AUX = WA_ITAB_FIELD.
* ...Rest of the code for the first register
ENDIF.
ENDLOOP.
Is there any problem with this way of coding? Can be done better?
Thank you very much in advance.

Hi..,
1)
See if u sort the table on a field on which u r using AT ENDAT .. then all the records which are having the same value for that field will form a group or those reocrds will be at one place.. so when u sort the table for all the records AT ENDAT will get executed onli once..
If u dont sort this table on this field then all these records will be at different places and in between there may be records with different value for this field.. so this AT ENDAT will get executed for each record !!
2)
No u cannot use the Right hand fields of the field in the table .. Because these AT events work as Group based operations... So till that field on which AT ENDAT is working it breaks that record into two groups.. One is the left hand fields including that field.. and right hand fields as another group.. and makes the right hand group as stars ****. Thats y u can observe that even any one field in the left hand group changes the AT ENDAT will get executed !!!!
Hope u understood !!!
regards,
sai ramesh

Importing internal table from one program to another program

Hi everybody,
i have one small doubt.
i am using submit statement and passing the values from this program to another program selection screen. in that program logic is written.In that program one internal table values are being exported to the memory id of that program. now i have to import that internal table values into my program by using import statement. i am using the following syntax
import itab from menory id 'program name'.
but i am getting an error saying program name is unknown.
what is the exat syntax for this .
thanking you,
giri.

hi,
check these statements.
IMPORT - Get data
Variants:
1. IMPORT obj1 ... objn FROM DATA BUFFER f.
2. IMPORT obj1 ... objn FROM INTERNAL TABLE itab.
2. IMPORT obj1 ... objn FROM MEMORY.
3. IMPORT obj1 ... objn FROM SHARED MEMORY itab(ar) ID key.
4. IMPORT obj1 ... objn FROM SHARED BUFFER itab(ar) ID key.
5. IMPORT obj1 ... objn FROM DATABASE dbtab(ar) ID key.
6. IMPORT obj1 ... objn FROM DATASET dsn(ar) ID key.
7. IMPORT obj1 ... objn FROM LOGFILE ID key.
8. IMPORT DIRECTORY INTO itab FROM DATABASE dbtab(ar) ID key.
9. IMPORT (itab) FROM ... .
In some cases, the syntax rules that apply to Unicode programs are different than those for non-Unicode programs. For more details, see Storing Cluster Tables.
Variant 1
IMPORT obj1 ... objn FROM DATA BUFFER f.
Extras:
1. ... = f (for each object to be imported)
2. ... TO f (for each object to be imported)
3. ... ACCEPTING PADDING
4. ... ACCEPTING TRUNCATION
5. ... IGNORING STRUCTURE BOUNDARIES
6. ... IGNORING CONVERSION ERRORS
7. ... REPLACEMENT CHARACTER c
8. ... IN CHAR-TO-HEX MODE
9. ... CODE PAGE INTO f1
10. ... ENDIAN INTO f2
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas.
See You Cannot Use Implicit Field Names in Clusters.
Effect
Imports the data objects obj1 ... objn from the data buffer declared. The data buffer must be of type XSTRING . The data objects obj1 ... objn can be fields, structures, complex structures, or tables. The system imports all the data that has been stored in the data buffer f using the EXPORT ... TO DATA BUFFER statement and is listed here. It also checks that the structure used in the IMPORT statement matches the one in the EXPORT statement.
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the data cluster specified were imported. The rest remain unchanged. (In some circumstances, this may mean that no data objects were imported).
SY-SUBRC = 4:
The data objects could not be imported. The contents of all the objects remain unchanged.
Addition 1
... = f (for each object to be imported)
Addition 2
... TO f (for each object to be imported)
Effect
The object is stored in the field f.
Addition 3
... ACCEPTING PADDING
Effect
This addition allows you to append new fields to the end
of structures, sub-structures, and internal tables. The IMPORT statement fills the additional fields with initial values; make existing fields (C, N, X, P, I1, and I2) longer; map character-type fields to STRING-type fields; or to map byte-type fields to XSTRING-type fields.
Addition 4
... ACCEPTING TRUNCATION
Effect
This addition allows you to shorten the last CHAR
fields, or to omit the last component at the top level. (Until Release 4.6, you could do this without using an addition).
Addition 5
... IGNORING STRUCTURE BOUNDARIES
Effect
This addition means that only the fragment sequence is
relevant - that is, that any sub-structures match. If you use this addition, the system ignores any alignment changes necessitated by Unicode - such as inserting named includes.
You cannot use this addition with either addition 3 (enlarge structure) or addition 4 (shorten structure), since it specifies that structure and include boundaries are to be ignored.
From Release 6.10 onwards, the include information is stored in datasets, so that the system can also check that includes match - that is, that sub-structures and includes (named or unnamed) are treated equally. When data is imported in a Release prior to 6.10, includes are not checked.
Addition 6
...IGNORING CONVERSION ERRORS
Effect
This addition prevents the system from triggering a
runtime error, if an error occurs when the character set is converted. '#' is used as a replacement character.
Addition 7
... REPLACEMENT CHARACTER c
Effect
The replacement character is used if a particular
character cannot be converted when the character set is converted.
This addition can only be used in conjunction with addition 6.
Addition 8
... IN CHAR-TO-HEX MODE
Effect
Not all character-type fields are converted. To convert
a field, you must create a field (or structure) that is identical to the exported field or structure, except that all its character-type components must be replaced with hexadecimal fields.
You can only use this addition in Unicode programs, to allow you to import camouflaged binary data as single-byte characters.
Moreover, you cannot use this addition in conjunction with the additions 3, 4, 5, 6, or 7.
Addition 9
... CODE PAGE INTO f1
Effect
The code page of the exported data is stored in the
character-type field f1 - for example, to analyze data that has been imported with the IN CHAR-TO-HEX MODE addition.
Addition 10
... ENDIAN INTO f2
Effect
The byte order (LITTLE or BIG) of the
exported data is stored in the field f2 - for example, to analyze data that has been imported with the IN CHAR-TO-HEX MODE addition. The field f2 must have the type ABAP_ENDIAN, which is defined in the type group ABAP. For this reason, the type group ABAP must be included in the ABAP program using a TYPE-POOLS statement.
Variant 2
IMPORT obj1 ... objn FROM INTERNAL TABLE itab.
Extras:
1. ... = f (for each object to be imported)
2. ... TO f (for each object to be imported)
3. ... ACCEPTING PADDING
4. ... ACCEPTING TRUNCATION
5. ... IGNORING STRUCTURE BOUNDARIES
6. ... IGNORING CONVERSION ERRORS
7. ... REPLACEMENT CHARACTER c
8. ... IN CHAR-TO-HEX MODE
9. ... CODE PAGE INTO f1
10. ... ENDIAN INTO f2
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See No implicit field names in cluster.
Effect
Imports the data objects obj1 ... objn (fields, structures, complex structures, or tables) from the specified internal table itab. The first column in the internal table must be of the predefined type INT2 and the second must be type X. To define the first column you must refer to a data element in the ABAP Dictionary that has the predefined type INT2.
All data that was stored in the internal table itab using EXPORT ... TO INTERNAL TABLE and listed, is imported. The system checks that the EXPORT and IMPORT structures match.
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the specified data cluster were imported, the rest remain unchanged (it is possible that no data object was imported).
SY-SUBRC = 4:
The data objects could not be imported.
The contents of all listed objects remain unchanged
Addition 1
... = f (for each object to be imported)
Addition 2
... TO f (for each object to be imported)
Effect
Places the object in the field f.
Addition 3
... ACCEPTING PADDING
Effect
This addition allows you to add new fields to the ends
of structures, even to substructures and internal tables (the additional fields are filled with initial value during the IMPORT). It also allows you to increase the size of existing fields (C, N, X, P, I1, and I2) and to map Char fields to STRING type fields or byte fields to XSTRING type fields.
Addition 4
... ACCEPTING TRUNCATION
Effect
This addition allows you to shorten the last CHAR
field or omit the last component on the highest level (till Release 4.6 this was possible without specifying an addition).
Addition 5
... IGNORING STRUCTURE BOUNDARIES
Effect
This addition means that only the page order is
relevant, that is any substructures match. With this addition, the system also ignores alignment changes arising from the Unicode conversion (for example, due to subsequent insertion of named includes).
This addition rules out any subsequent structural enhancements (addition 3) or structural shortening (addition 4) because with this addition it is the structural limits and include limits that are to be ignored.
As from Release 6.10, the include information will also be stored in the dataset, so that it is possible to also check whether the includes match, that is substructures and includes (named or unnamed) are treated the same. When importing data that was exported in a Release lower than 6.10, the includes are not checked.
Addition 6
...IGNORING CONVERSION ERRORS
Effect
This addition has the effect that an error in the
character set conversion does not cause a runtime error. The system uses "#" as a replacement character.
Addition 7
... REPLACEMENT CHARACTER c
Effect
The system uses the specified replacement character if a
character cannot be converted during a character set conversion. If this addition is not specified, the system uses "#" as a replacement character.
This addition can only be used in conjunction with addition 6.
Addition 8
... IN CHAR-TO-HEX MODE
Effect
No character type fields are converted. For this you
must create a field or structure that is identical to the exported field or exported structure, except that all character type fields must be replaced with hexadecimal fields.
This addition, which is only allowed in programs with a set Unicode flag, allows you to import binary data disguised as single byte characters. This addition cannot be used in conjunction with additions 3, 4, 5, 6, and 7.
Addition 9
... CODE PAGE INTO f1
Effect
The codepage of the exported data is stored in the
character-type field f1 (for example, to be able to analyze the data imported with the addition IN CHAR-TO-HEX MODE).
Addition 10
... ENDIAN INTO f2
Effect
The byte order (LITTLE or BIG) of the
exported data is stored in the field f2 (for example, to be able analyze the data imported using the addition IN CHAR-TO-HEX MODE). The field f2 must be of type ABAP_ENDIAN, defined in type group ABAP. You must therefore include the type group ABAP in the ABAP program with a TYPE-POOLS statement.
Variant 3
IMPORT obj1 ... objn FROM MEMORY.
Extras:
1. ... = f (for each object to be imported) 2. ... TO f (for each object to be imported)
3. ... ID key
4. ... ACCEPTING PADDING
5. ... ACCEPTING TRUNCATION
6. ... IGNORING STRUCTURE BOUNDARIES
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See You Must Enter Identification and Cannot Use Implicit Field Names inClusters
Effect
Imports data objects obj1 ... objn (fields, structures, complex structures or tables) from a data cluster in the ABAP memory (see EXPORT). Reads in all data without an ID that was exported to memory with "EXPORT ... TO MEMORY.". In contrast to the variant IMPORT FROM DATABASE, it does not check that the structure matches in EXPORT and IMPORT.
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the data cluster specified were imported. The rest remain unchanged (in some circumstances, this may mean that no data objects were imported).
SY-SUBRC = 4:
The data objects could not be imported, probably because the ABAP memory was empty.
The contents of all objects remain unchanged.
Note
You should always use the addition 3 (... ID key) with the statement. Otherwise, the effect of the variant is not certain (EXPORT statements in different parts of a program overwrite each other in the ABAP memory), since it exists only for reasons of compatibility with R/2.
Additional methods for selecting and deleting data clusters in the ABAP memory are provided by the system class CL_ABAP_EXPIMP_MEM.
Please consult Data Area and Modularization Unit Organization documentation as well.
Addition 1
... = f (for each object to be imported)
Addition 2
... TO f (for each object to be imported)
Effect
The object is placed in field f.
Addition 3
... ID key
Effect
Imports only data stored in ABAP memory under the ID key.
Notes
The key, key, must be a character-type data object (but not a string).
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the data cluster specified were imported. The rest remain unchanged (in some circumstances, this may mean that no data objects were imported).
SY-SUBRC = 4:
The data objects could not be imported, probably because an incorrect ID was used.
The contents of all objects remain unchanged.
Addition 4
... ACCEPTING PADDING
Effect
This addition allows you to append new fields to the end of structures, sub-structures, and internal tables. The IMPORT statement fills the additional fields with initial values; make existing fields (C, N, X, P, I1, and I2) longer; map character-type fields to STRING-type fields; or to map byte-type fields to XSTRING-type fields.
Addition 5
... ACCEPTING TRUNCATION
Effect
This addition allows you to shorten the last CHAR field, or to omit the last component at the top level. (Until Release 4.6, you could do this without using an addition).
Addition 6
... IGNORING STRUCTURE BOUNDARIES
Effect
This addition means that only the fragment sequence is relevant - that is, that any sub-structures match. If you use this addition, the system ignores any alignment changes necessitated by Unicode - such as inserting named includes.
You cannot use this addition with either addition 3 (enlarge structure) or addition 4 (shorten structure), since it specifies that structure and include boundaries are to be ignored.
From Release 6.10 onwards, the include information is stored in datasets, so that the system can also check that includes match - that is, that sub-structures and includes (named or unnamed) are treated equally. When data is imported in a Release prior to 6.10, includes are not checked.
Related
EXPORT TO MEMORY, DELETE FROM MEMORY, FREE MEMORY
Variant 4
IMPORT obj1 ... objn FROM SHARED MEMORY itab(ar) ID key.
Extras:
1. ... = f (for each object to be exported) 2. ... TO f (for each object to be exported)
3. ... CLIENT g (before ID key)
4. ... TO wa (after itab(ar) or ID key )
5. ... ACCEPTING PADDING
6. ... ACCEPTING TRUNCATION
7. ... IGNORING STRUCTURE BOUNDARIES
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas.
See You Cannot Use Implicit Field Names in Clusters and You Cannot Use Table Work Areas.
Effect
Imports the data objects obj1 ... objn (fields, structures, complex structures, or tables) from shared memory. The data objects are read using the ID key from the area ar in the table itab - c.f. EXPORT TO SHARED MEMORY). You must use itab to specify a database table although the system reads from a memory table with the appropriate structure.
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the data cluster specified were imported. The rest remain unchanged. (In some circumstances, this may mean that no data objects were imported).
SY-SUBRC = 4:
The data objects could not be imported. You may have used the wrong ID. The contents of all the objects remain unchanged.
Notes
The table dbtab named according to SHARED MEMORY must be declared using TABLES (except in addition 2).
The structure of fields (field symbols and internal tables) to be imported must match the structure of the objects exported in the dataset. The objects must be imported under the same names as those under which they were exported. Otherwise, they will not be imported.
The key length consists of: the client (3 digits, but only if tab is client-specific); area (2 characters); ID; and line number (4 bytes). It must not exceed 64 bytes - that is, the ID must not be longer than 55 characters, if the table is client- specific.
The key, key, must be a character-type data object (but not a string).
Additional methods for selecting and deleting data clusters in the shared memory are provided by the system class CL_ABAP_EXPIMP_SHMEM.
Please consult Data Area and Modularization Unit Organization documentation as well.
Addition 1
... = f (for each object to be imported)
Addition 2
... TO f (for each object to be imported)
Effect
The object is stored in the field f.
Addition 3
... CLIENT g (before ID key)
Effect
The data is imported from client g (provided the import/export table is tab client-specific). The client, g must be a character-type data object (but not a string).
Addition 4
... TO wa (after itab(ar) or ID key)
Effect
You need to use this addition if user data fields have been stored in the application buffer and are to be read from there. The work area wa is used instead of the table work area. The target area must correspond to the structure of the called table tab.
Addition 5
... ACCEPTING PADDING
Effect
This addition allows you to: append new fields to the end of structures, sub-structures, and internal tables. The IMPORT statement fills the additional fields with initial values; make existing fields (C, N, X, P, I1, and I2) longer; map character-type fields to STRING-type fields; or to map byte-type fields to XSTRING-type fields.
Addition 6
... ACCEPTING TRUNCATION
Effect
This addition allows you to shorten the last CHAR fields, or to omit the last component at the top level. (Until Release 4.6, you could do this without using an addition).
Addition 7
... IGNORING STRUCTURE BOUNDARIES
Effect
This addition means that only the fragment sequence is relevant - that is, that any sub-structures match. If you use this addition, the system ignores any alignment changes necessitated by Unicode - such as inserting named includes.
You cannot use this addition with either addition 4 (enlarge structure) or addition 5 (shorten structure), since it specifies that structure and include boundaries are to be ignored.
From Release 6.10 onwards, the include information is stored in datasets, so that the system can also check that includes match - that is, that sub-structures and includes (named or unnamed) are treated equally. When data is imported in a Release prior to 6.10, includes are not checked.
Related
EXPORT TO SHARED MEMORY, DELETE FROM SHARED MEMORY
Variant 5
IMPORT obj1 ... objn FROM SHARED BUFFER itab(ar) ID key.
Extras:
1. ... = f (for each object to be exported) 2. ... TO f (for each object to be exported)
3. ... CLIENT g (before ID key)
4. ... TO wa (last addition or after itab(ar))
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas.
See Cannot Use Implicit Fieldnames in Clusters und Cannot Use Table Work Areas.
Effect
Imports data objects obj1 ... objn (fields or
tables) from the cross-transaction application buffer. The data objects are read in the application buffer using the ID key of the area ar of the buffer area for the table itab (see EXPORT TO SHARED BUFFER). You must use dbtab to specify a database table although the system reads from a memory table with an appropriate structure.
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the data cluster specified were imported. The rest remain unchanged (in some circumstances, this means that no data objects were imported).
SY-SUBRC = 4:
The data objects could not be imported, probably because an incorrect ID was used.
The contents of all objects remain unchanged.
Example
Import two fields and an internal table from the application buffer with the structure INDX:
TYPES: BEGIN OF ITAB3_LINE,
 CONT(4),
 END OF ITAB3_LINE.
DATA: INDXKEY LIKE INDX-SRTFD VALUE 'KEYVALUE',
 F1(4),
 F2(8) TYPE P DECIMALS 0,
 ITAB3 TYPE STANDARD TABLE OF ITAB3_LINE,
 INDX_WA TYPE INDX.
Import data.
IMPORT F1 = F1 F2 = F2 ITAB3 = ITAB3
 FROM SHARED BUFFER INDX(ST) ID INDXKEY TO INDX_WA.
After import, the data fields INDX-AEDAT and
INDX-USERA in front of CLUSTR are filled with
the values in the fields before the EXPORT
statement.
Notes
You must declare the table dbtab, named after DATABASE using a TABLES statement.
The structure of the fields, structures, and internal tables to be imported must match the structure of the objects exported to the dataset. Moreover, the objects must be imported with the same name used to export them. Otherwise, the import is not performed.
The maximum total key length is 64 bytes. It must include: a client if the table is client-specific (3 characters); an area (2 characters); identification; and line counter (4 bytes). This means that the number of characters available for the identification of a client-specific table is 55 characters.
The key, key, must be a character-type data object (but not a string).
Additional methods for selecting and deleting data clusters in the cross-transaction application buffer are provided by the system class CL_ABAP_EXPIMP_SHBUF.
Please consult Data Area and Modularization Unit Organization documentation as well.
Addition 1
... = f (for each object to be imported)
Addition 2
... TO f (for each object to be imported)
Effect
The object is placed in the field f
Addition 3
... CLIENT g (after dbtab(ar))
Effect
Takes the data from the client g (if the import/export table dbtab is client-specific). The client g must be a character-type data object (but not a string).
Addition 4
... TO wa (as the last addition or after itab(ar))
Effect
You need to use this addition if you want to save user data fields in the application buffer and then read them from there later. The system uses a work area wa instead of a table work area. The target area must have the same structure as the table tab.
Example
DATA: INDX_WA TYPE INDX,
 F1.
IMPORT F1 = F1 FROM SHARED BUFFER INDX(AR)
 CLIENT '001' ID 'TEST'
 TO INDX_WA.
WRITE: / 'AEDAT:', INDX_WA-AEDAT,
 / 'USERA:', INDX_WA-USERA,
 / 'PGMID:', INDX_WA-PGMID.
Variant 6
IMPORT obj1 ... objn FROM DATABASE dbtab(ar) ID key.
Extras:
1. ... = f (for each object to be imported)
2. ... TO f (for each object to be imported)
3. ... CLIENT g (before ID key )
4. ... USING form
5. ... TO wa (last addition or after dbtab(ar))
6. ... MAJOR-ID id1 (instead of ID key)
7. ... MINOR-ID id2 (with MAJOR-ID id1 )
8. ... ACCEPTING PADDING
9. ... ACCEPTING TRUNCATION
10. ... IGNORING STRUCTURE BOUNDARIES
11. ... IGNORING CONVERSION ERRORS
12. ... REPLACEMENT CHARACTER c
13. ... IN CHAR-TO-HEX MODE
14. ... CODE PAGE INTO f1
15. ... ENDIAN INTO f2
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See Cannot Use Implicit Fieldnames in Clusters and Cannot Use Table Work Areas.
Effect
Imports data objects obj1 ... objn (fields, structures, complex structures, or tables) from the data cluster with ID key in area ar of the database table dbtab (see EXPORT TO DATABASE).
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the data cluster specified were imported. The rest remain unchanged (in some circumstances, this may mean that not data objects were imported).
SY-SUBRC = 4:
The data objects could not be imported, probably because an incorrect ID was used.
The contents of all objects remain unchanged.
Example
Import two fields and an internal table:
TYPES: BEGIN OF TAB3_TYPE,
 CONT(4),
 END OF TAB3_TYPE.
DATA: INDXKEY LIKE INDX-SRTFD,
 F1(4), F2 TYPE P,
 TAB3 TYPE STANDARD TABLE OF TAB3_TYPE WITH
 NON-UNIQUE DEFAULT KEY,
 WA_INDX TYPE INDX.
INDXKEY = 'INDXKEY'.
IMPORT F1 = F1
 F2 = F2
 TAB3 = TAB3 FROM DATABASE INDX(ST) ID INDXKEY
 TO WA_INDX.
Notes
You must declare the table dbtab, named after DATABASE, using the TABLES statement (except in addition 5).
The structure of fields, field strings and internal tables to be imported must match the structure of the objects exported to the dataset. In addition, the objects must be imported under the same name used to export them. If this is not the case, either a runtime error occurs or no import takes place.
Exception: You can lengthen or shorten the last field if it is of type CHAR, or add/omit CHAR fields at the end of the structure.
The key, key, must be a character-type data object (but not a string).
Additional methods for selecting and deleting data clusters in the database table specified are provided by the system class CL_ABAP_EXPIMP_DB.
Addition 1
... = f (for each object to be imported)
Addition 2
... TO f (for each object to be imported)
Effect
The object is placed in field f.
Addition 3
... CLIENT g (before the ID key)
Effect
Data is taken from the client g (in client-specific import/export databases only). Client g must be a character-type data object (but not a string).
Example
DATA: F1,
 WA_INDX TYPE INDX.
IMPORT F1 = F1 FROM DATABASE INDX(AR) CLIENT '002' ID 'TEST'
 TO WA_INDX.
Addition 4
... USING form
Note
This statement is for internal use only.
Incompatible changes or further developments may occur at any time without warning or notice.
Effect
Does not read the data from the database. Instead, calls the FORM routine form for each record read from the database without this addition. This routine can take the data key of the data to be retrieved from the database table work area and write the retrieved data to this work area. The name of the routine has the format <name of database table>_<name of form>; it has one parameter which describes the operation (READ, UPDATE or INSERT). The routine must set the field SY-SUBRC in order to show whether the function was successfully performed.
Addition 5
... TO wa (after key or after dbtab(ar))
Effect
You need to use this addition if you want to save user data fields in the cluster database and then read from there. The system uses the work area wa instead of a table work area. The target area entered must have the same structure as the table dbtab.
Example
DATA WA LIKE INDX.
DATA F1.
IMPORT F1 = F1 FROM DATABASE INDX(AR)
 CLIENT '002' ID 'TEST'
 TO WA.
WRITE: / 'AEDAT:', WA-AEDAT,
 / 'USERA:', WA-USERA,
 / 'PGMID:', WA-PGMID.
Addition 6
... MAJOR-ID id1 (instead of the ID key).
Addition 7
... MINOR-ID id2 (with MAJOR-ID id1)
This addition is not allowed in an ABAP Objects context. See Cannot Use Generic Identification.
Effect
Searches for a record the first part of whose ID (length of id1) matches id1 and whose second part - if MINOR-ID id2 is also declared - is greater than or equal to id2.
Addition 8
... ACCEPTING PADDING
Effect
This addition allows you to append new fields to the end of structures, sub-structures, and internal tables. The IMPORT statement fills the additional fields with initial values; make existing fields (C, N, X, P, I1, and I2) longer; map character-type fields to STRING-type fields; or to map byte-type fields to XSTRING-type fields.
Addition 9
... ACCEPTING TRUNCATION
Effect
This addition allows you to shorten the last CHAR fields, or to omit the last component at the top level. (Until Release 4.6, you could do this without using an addition).
Addition 10
... IGNORING STRUCTURE BOUNDARIES
Effect
This addition means that only the fragment sequence is relevant - that is, that any sub-structures match. If you use this addition, the system ignores any alignment changes necessitated by Unicode - such as inserting named includes.
You cannot use this addition with either addition 8 (enlarge structure) or addition 9 (shorten structure), since it specifies that structure and include boundaries are to be ignored.
From Release 6.10 onwards, the include information is stored in datasets, so that the system can also check that includes match - that is, that sub-structures and includes (named or unnamed) are treated equally. When data is imported in a Release prior to 6.10, includes are not checked.
Addition 11
...IGNORING CONVERSION ERRORS
Effect
This addition prevents the system from triggering a runtime error, if an error occurs when the character set is converted. '#' is used as a replacement character.
Addition 12
... REPLACEMENT CHARACTER c
Effect
The replacement character is used if a particular character cannot be converted when the character set is converted. If you do not use this addition, '#' is used as a replacement character.
This addition can only be used in conjunction with addition 11.
Addition 13
... IN CHAR-TO-HEX MODE
Effect
All character-type fields are not converted. To convert a field, you must create a field (or structure) that is identical to the exported field or structure, except that all its character-type components must be replaced with hexadecimal fields.
You can only use this addition in Unicode programs, to allow you to import camouflaged binary data as single-byte characters. Moreover, you cannot use this addition in conjunction with the additions 8, 9, 10, 11, and 12.
Addition 14
... CODE PAGE INTO f1
Effect
The code page of the exported data is stored in the character-type field f1 - for example, to analyze data that has been imported with the IN CHAR-TO-HEX MODE addition.
Addition 15
... ENDIAN INTO f2
Effect
The byte order(LITTLE or BIG) of the exported data is stored in the field f2 - for example, to analyze data that has been imported with the IN CHAR-TO-HEX MODE addition. The field f2 must have the type ABAP_ENDIAN, which is defined in the type group ABAP. For this reason, the type group ABAP must be included in the ABAP program using a TYPE-POOLS statement.
Variant 7
IMPORT obj1 ... objn FROM DATASET dsn(ar) ID key.
This variant is not allowed in an ABAP Objects context. See Cannot Use Clusters in Files
Note
This variant is no longer supported and cannot be used.
Variant 8
IMPORT obj1 ... objn FROM LOGFILE ID key.
Note
This statement is for internal use only.
Incompatible changes or further developments may occur at any time without warning or notice.
Extras:
1. ... = f (for each field f to be imported) 2. ... TO f (for each field f to be imported)
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See Cannot Use Implicit Field Names in Clusters
Effect
Imports data objects (fields, field strings or internal tables) from the update data. You must specify the update key assigned by the system (with current request number) as the key.
The key, key, must be a character-type data object (but not a string).
The Return Code is set as follows:
SY-SUBRC = 0:
The existing data objects in the data cluster specified were imported. The rest remain unchanged (in some circumstances, this may mean that no data objects were imported).
SY-SUBRC = 4:
The data objects could not be imported. An incorrect ID may have been used.
The contents of all objects remain unchanged.
Addition 1
... = f (for each object to be imported)
Addition 2
... TO f (for each object to be imported)
Effect
The object is placed in field f.
Variant 9
IMPORT DIRECTORY INTO itab FROM DATABASE dbtab(ar) ID key.
Extras:
1. ... CLIENT g (after dbtab(ar)) 2. ... TO wa (last addition or after dbtab(ar))
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See Cannot Use Table Work Areas.
Effect
Imports an object directory stored under the specified ID with EXPORT TO DATABASE into the table itab. The internal table itab may not have the type HASHED TABLE or ANY TABLE.
The key, key, must be a character-type data object (but not a string).
The Return Code is set as follows:
SY-SUBRC = 0:
The directory was successfully imported.
SY-SUBRC = 4:
The directory could not be imported, probably because an incorrect ID was used.
The internal table itab must have the same structure as the Dictionary structure CDIR (INCLUDE STRUCTURE).
Addition 1
... CLIENT g (before ID key)
Effect
Takes data from the client g (only with client-specific import/export databases). Client g must be a character-type data object (but not a string).
Addition 2
... TO wa (last addition or after dbtab(ar))
Effect
Uses the work area wa instead of the table work area. When you use this addition, you do not need to declare the table dbtab, named after DATABASE using a TABLES statement. The work area entered must have the same structure as the table dbtab.
Example
Directory of a cluster consisting of two fields and an internal table:
TYPES: BEGIN OF TAB3_LINE,
 CONT(4),
 END OF TAB3_LINE,
 BEGIN OF DIRTAB_LINE.
 INCLUDE STRUCTURE CDIR.
TYPES END OF DIRTAB_LINE.
DATA: INDXKEY LIKE INDX-SRTFD,
 F1(4),
 F2(8) TYPE P decimals 0,
 TAB3 TYPE STANDARD TABLE OF TAB3_LINE,
 DIRTAB TYPE STANDARD TABLE OF DIRTAB_LINE,
 INDX_WA TYPE INDX.
INDXKEY = 'INDXKEY'.
EXPORT F1 = F1
 F2 = F2
 TAB3 = TAB3
 TO DATABASE INDX(ST) ID INDXKEY " TAB3 has 17 entries
 FROM INDX_WA.
IMPORT DIRECTORY INTO DIRTAB FROM DATABASE INDX(ST) ID INDXKEY
 TO INDX_WA.
Then, the table DIRTAB contains the following:
NAME OTYPE FTYPE TFILL FLENG
F1 F C 0 4
F2 F P 0 8
TAB3 T C 17 4
The meaning of the individual fields is as follows:
NAME:
Name of stored object
OTYPE:
Object type (F: Field, R: Field string / Dictionary struc

Structure or Internal table

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