ABAP Select data from SAP table ISDFS_POSITIONNATOTP1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISDFS_POSITIONNATOTP1 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to ISDFS_POSITIONNATOTP1. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the ISDFS_POSITIONNATOTP1 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_ISDFS_POSITIONNATOTP1 TYPE STANDARD TABLE OF ISDFS_POSITIONNATOTP1,
      WA_ISDFS_POSITIONNATOTP1 TYPE ISDFS_POSITIONNATOTP1,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <ISDFS_POSITIONNATOTP1> TYPE ISDFS_POSITIONNATOTP1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISDFS_POSITIONNATOTP1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISDFS_POSITIONNATOTP1
  INTO TABLE IT_ISDFS_POSITIONNATOTP1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISDFS_POSITIONNATOTP1
*  INTO TABLE @DATA(IT_ISDFS_POSITIONNATOTP12).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_ISDFS_POSITIONNATOTP1 INDEX 1 INTO DATA(WA_ISDFS_POSITIONNATOTP12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISDFS_POSITIONNATOTP1 ASSIGNING <ISDFS_POSITIONNATOTP1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISDFS_POSITIONNATOTP1>-KEY = 1.
<ISDFS_POSITIONNATOTP1>-PARENT_KEY = 1.
<ISDFS_POSITIONNATOTP1>-ROOT_KEY = 1.
<ISDFS_POSITIONNATOTP1>-DFSPOSITIONPLANVERSION = 1.
<ISDFS_POSITIONNATOTP1>-DFSPOSITIONOBJECTTYPE = 1.

ENDLOOP.

LOOP AT IT_ISDFS_POSITIONNATOTP1 INTO WA_ISDFS_POSITIONNATOTP1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISDFS_POSITIONNATOTP1-DFSPOSITIONID, sy-vline,
  WA_ISDFS_POSITIONNATOTP1-DFSPOSITIONSUBTYPE, sy-vline,
  WA_ISDFS_POSITIONNATOTP1-DFSPOSITIONPLNGSTATUS, sy-vline,
  WA_ISDFS_POSITIONNATOTP1-DFSPOSITIONVALDTYSTARTDATE, sy-vline,
  WA_ISDFS_POSITIONNATOTP1-DFSPOSITIONVALDTYENDDATE, sy-vline,
  WA_ISDFS_POSITIONNATOTP1-LANGUAGECODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISDFS_POSITIONNATOTP1 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_ISDFS_POSITIONNATOTP1 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_ISDFS_POSITIONNATOTP1 INTO WA_ISDFS_POSITIONNATOTP1.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ISOLA, internal->external for field LANGUAGECODE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISDFS_POSITIONNATOTP1-LANGUAGECODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDFS_POSITIONNATOTP1-LANGUAGECODE.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ISDFS_POSITIONNATOTP1_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
DFSPOSITIONPLANVERSION TYPE STRING,
DFSPOSITIONOBJECTTYPE TYPE STRING,
DFSPOSITIONID TYPE STRING,
DFSPOSITIONSUBTYPE TYPE STRING,
DFSPOSITIONPLNGSTATUS TYPE STRING,
DFSPOSITIONVALDTYSTARTDATE TYPE STRING,
DFSPOSITIONVALDTYENDDATE TYPE STRING,
LANGUAGECODE TYPE STRING,
DFSPOSITIONINFOTYPE TYPE STRING,
DFSPOSITIONPLNGSTSCRITLTY TYPE STRING,
DFSPOSITIONNATOIDENTIFIER TYPE STRING,
DFSPOSITIONNATORANK TYPE STRING,
DFSPOSITIONNATOROTATION1 TYPE STRING,
DFSPOSITIONNATOROTATION2 TYPE STRING,
DFSPOSITIONNATOROTATION3 TYPE STRING,
DFSPOSITIONNATOROTATION4 TYPE STRING,
DFSPOSITIONNATOROTATION5 TYPE STRING,
DFSPOSITIONNATOROTATION6 TYPE STRING,
DFSPOSITIONVALDTYSTARTDATEFOED TYPE STRING,
DFSPOSITIONVALDTYENDDATEFOED TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISDFS_POSITIONNATOTP1_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_ISDFS_POSITIONNATOTP1_STR-KEY sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-PARENT_KEY sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-ROOT_KEY sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONPLANVERSION sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONOBJECTTYPE sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONID sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONSUBTYPE sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONPLNGSTATUS sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONVALDTYSTARTDATE sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONVALDTYENDDATE sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-LANGUAGECODE sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONINFOTYPE sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONPLNGSTSCRITLTY sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATOIDENTIFIER sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATORANK sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATOROTATION1 sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATOROTATION2 sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATOROTATION3 sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATOROTATION4 sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATOROTATION5 sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONNATOROTATION6 sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONVALDTYSTARTDATEFOED sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DFSPOSITIONVALDTYENDDATEFOED sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-HASACTIVEENTITY sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISDFS_POSITIONNATOTP1_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.