ABAP Select data from SAP table IDGT_INFO_LC_APPEND1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDGT_INFO_LC_APPEND1 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 IDGT_INFO_LC_APPEND1. 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 IDGT_INFO_LC_APPEND1 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_IDGT_INFO_LC_APPEND1 TYPE STANDARD TABLE OF IDGT_INFO_LC_APPEND1,
      WA_IDGT_INFO_LC_APPEND1 TYPE IDGT_INFO_LC_APPEND1,
      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: <IDGT_INFO_LC_APPEND1> TYPE IDGT_INFO_LC_APPEND1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IDGT_INFO_LC_APPEND1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IDGT_INFO_LC_APPEND1
  INTO TABLE IT_IDGT_INFO_LC_APPEND1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDGT_INFO_LC_APPEND1
*  INTO TABLE @DATA(IT_IDGT_INFO_LC_APPEND12).
*--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_IDGT_INFO_LC_APPEND1 INDEX 1 INTO DATA(WA_IDGT_INFO_LC_APPEND12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IDGT_INFO_LC_APPEND1 ASSIGNING <IDGT_INFO_LC_APPEND1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDGT_INFO_LC_APPEND1>-TLINES = 1.
<IDGT_INFO_LC_APPEND1>-KUNNR = 1.
<IDGT_INFO_LC_APPEND1>-KNAME1 = 1.
<IDGT_INFO_LC_APPEND1>-KSTCD1 = 1.
<IDGT_INFO_LC_APPEND1>-KSTRAS = 1.

ENDLOOP.

LOOP AT IT_IDGT_INFO_LC_APPEND1 INTO WA_IDGT_INFO_LC_APPEND1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDGT_INFO_LC_APPEND1-KBANKA, sy-vline,
  WA_IDGT_INFO_LC_APPEND1-VUSNAM, sy-vline,
  WA_IDGT_INFO_LC_APPEND1-CUSNAM, sy-vline,
  WA_IDGT_INFO_LC_APPEND1-VBANKA, sy-vline,
  WA_IDGT_INFO_LC_APPEND1-VSTRAS, sy-vline,
  WA_IDGT_INFO_LC_APPEND1-VSTCD1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDGT_INFO_LC_APPEND1 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_IDGT_INFO_LC_APPEND1 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_IDGT_INFO_LC_APPEND1 INTO WA_IDGT_INFO_LC_APPEND1.


*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 ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_INFO_LC_APPEND1-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_INFO_LC_APPEND1-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_INFO_LC_APPEND1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_INFO_LC_APPEND1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_INFO_LC_APPEND1-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_INFO_LC_APPEND1-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURRF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_INFO_LC_APPEND1-KURRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_INFO_LC_APPEND1-KURRF.
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_IDGT_INFO_LC_APPEND1_STR, 
TLINES TYPE STRING,
KUNNR TYPE STRING,
KNAME1 TYPE STRING,
KSTCD1 TYPE STRING,
KSTRAS TYPE STRING,
KBANKA TYPE STRING,
VUSNAM TYPE STRING,
CUSNAM TYPE STRING,
VBANKA TYPE STRING,
VSTRAS TYPE STRING,
VSTCD1 TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
MSPEC TYPE STRING,
MEINS TYPE STRING,
FKIMG TYPE STRING,
NETWR TYPE STRING,
TAXAMT TYPE STRING,
TAXRATE TYPE STRING,
UNITPE TYPE STRING,
TAXCOD TYPE STRING,
CURRENCY TYPE STRING,
PEMOD TYPE STRING,
TAXAMT_S_T TYPE STRING,
TAXAMT_S TYPE STRING,
UNITPE_S TYPE STRING,
NETWR_S TYPE STRING,
KURRF TYPE STRING,
FWBTR TYPE STRING,
FWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDGT_INFO_LC_APPEND1_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_IDGT_INFO_LC_APPEND1_STR-TLINES sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-KUNNR sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-KNAME1 sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-KSTCD1 sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-KSTRAS sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-KBANKA sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-VUSNAM sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-CUSNAM sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-VBANKA sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-VSTRAS sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-VSTCD1 sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-MATNR sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-MAKTX sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-MSPEC sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-MEINS sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-FKIMG sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-NETWR sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-TAXAMT sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-TAXRATE sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-UNITPE sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-TAXCOD sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-CURRENCY sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-PEMOD sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-TAXAMT_S_T sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-TAXAMT_S sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-UNITPE_S sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-NETWR_S sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-KURRF sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-FWBTR sy-vline 
WA_IDGT_INFO_LC_APPEND1_STR-FWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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