ABAP Select data from SAP table V56IDLNT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V56IDLNT 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 V56IDLNT. 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 V56IDLNT 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_V56IDLNT TYPE STANDARD TABLE OF V56IDLNT,
      WA_V56IDLNT TYPE V56IDLNT,
      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: <V56IDLNT> TYPE V56IDLNT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V56IDLNT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V56IDLNT
  INTO TABLE IT_V56IDLNT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V56IDLNT
*  INTO TABLE @DATA(IT_V56IDLNT2).
*--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_V56IDLNT INDEX 1 INTO DATA(WA_V56IDLNT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V56IDLNT ASSIGNING <V56IDLNT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V56IDLNT>-VSTEL = 1.
<V56IDLNT>-NAME1 = 1.
<V56IDLNT>-CONADDR = 1.
<V56IDLNT>-BTGWD = 1.
<V56IDLNT>-VOLMD = 1.

ENDLOOP.

LOOP AT IT_V56IDLNT INTO WA_V56IDLNT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V56IDLNT-GSGWD, sy-vline,
  WA_V56IDLNT-ROUTE, sy-vline,
  WA_V56IDLNT-ABLAD, sy-vline,
  WA_V56IDLNT-TDDAT, sy-vline,
  WA_V56IDLNT-KODAT, sy-vline,
  WA_V56IDLNT-LDDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V56IDLNT 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_V56IDLNT 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_V56IDLNT INTO WA_V56IDLNT.


*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_V56IDLNT-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56IDLNT-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V56IDLNT-SPDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56IDLNT-SPDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XABLN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V56IDLNT-XABLN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56IDLNT-XABLN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V56IDLNT-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56IDLNT-KUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN_VAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V56IDLNT-VBELN_VAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56IDLNT-VBELN_VAUF.
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_V56IDLNT_STR, 
VSTEL TYPE STRING,
NAME1 TYPE STRING,
CONADDR TYPE STRING,
BTGWD TYPE STRING,
VOLMD TYPE STRING,
GSGWD TYPE STRING,
ROUTE TYPE STRING,
ABLAD TYPE STRING,
TDDAT TYPE STRING,
KODAT TYPE STRING,
LDDAT TYPE STRING,
WADAT TYPE STRING,
WADAT_IST TYPE STRING,
LFDAT TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
KUNNR TYPE STRING,
REGIO TYPE STRING,
LZONE TYPE STRING,
LFUHR TYPE STRING,
LPRIO TYPE STRING,
VSBED TYPE STRING,
BEROT TYPE STRING,
GRULG TYPE STRING,
LSTEL TYPE STRING,
LGNUM TYPE STRING,
ANZPK TYPE STRING,
TRAGR TYPE STRING,
SPDNR TYPE STRING,
XABLN TYPE STRING,
LIFEX TYPE STRING,
LFART TYPE STRING,
VKORG TYPE STRING,
KUNAG TYPE STRING,
KDGRP TYPE STRING,
BSTNK TYPE STRING,
BSTDK TYPE STRING,
VBELN_VAUF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V56IDLNT_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_V56IDLNT_STR-VSTEL sy-vline 
WA_V56IDLNT_STR-NAME1 sy-vline 
WA_V56IDLNT_STR-CONADDR sy-vline 
WA_V56IDLNT_STR-BTGWD sy-vline 
WA_V56IDLNT_STR-VOLMD sy-vline 
WA_V56IDLNT_STR-GSGWD sy-vline 
WA_V56IDLNT_STR-ROUTE sy-vline 
WA_V56IDLNT_STR-ABLAD sy-vline 
WA_V56IDLNT_STR-TDDAT sy-vline 
WA_V56IDLNT_STR-KODAT sy-vline 
WA_V56IDLNT_STR-LDDAT sy-vline 
WA_V56IDLNT_STR-WADAT sy-vline 
WA_V56IDLNT_STR-WADAT_IST sy-vline 
WA_V56IDLNT_STR-LFDAT sy-vline 
WA_V56IDLNT_STR-INCO1 sy-vline 
WA_V56IDLNT_STR-INCO2 sy-vline 
WA_V56IDLNT_STR-KUNNR sy-vline 
WA_V56IDLNT_STR-REGIO sy-vline 
WA_V56IDLNT_STR-LZONE sy-vline 
WA_V56IDLNT_STR-LFUHR sy-vline 
WA_V56IDLNT_STR-LPRIO sy-vline 
WA_V56IDLNT_STR-VSBED sy-vline 
WA_V56IDLNT_STR-BEROT sy-vline 
WA_V56IDLNT_STR-GRULG sy-vline 
WA_V56IDLNT_STR-LSTEL sy-vline 
WA_V56IDLNT_STR-LGNUM sy-vline 
WA_V56IDLNT_STR-ANZPK sy-vline 
WA_V56IDLNT_STR-TRAGR sy-vline 
WA_V56IDLNT_STR-SPDNR sy-vline 
WA_V56IDLNT_STR-XABLN sy-vline 
WA_V56IDLNT_STR-LIFEX sy-vline 
WA_V56IDLNT_STR-LFART sy-vline 
WA_V56IDLNT_STR-VKORG sy-vline 
WA_V56IDLNT_STR-KUNAG sy-vline 
WA_V56IDLNT_STR-KDGRP sy-vline 
WA_V56IDLNT_STR-BSTNK sy-vline 
WA_V56IDLNT_STR-BSTDK sy-vline 
WA_V56IDLNT_STR-VBELN_VAUF sy-vline      INTO ld_text SEPARATED BY SPACE.

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