ABAP Select data from SAP table VLCDISPLALV_VBAK_I into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VLCDISPLALV_VBAK_I
*  INTO TABLE @DATA(IT_VLCDISPLALV_VBAK_I2).
*--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_VLCDISPLALV_VBAK_I INDEX 1 INTO DATA(WA_VLCDISPLALV_VBAK_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VLCDISPLALV_VBAK_I>-ANGDT = 1.
<VLCDISPLALV_VBAK_I>-BNDDT = 1.
<VLCDISPLALV_VBAK_I>-AUDAT = 1.
<VLCDISPLALV_VBAK_I>-VBTYP = 1.
<VLCDISPLALV_VBAK_I>-TRVOG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VLCDISPLALV_VBAK_I-AUART, sy-vline,
  WA_VLCDISPLALV_VBAK_I-AUGRU, sy-vline,
  WA_VLCDISPLALV_VBAK_I-GWLDT, sy-vline,
  WA_VLCDISPLALV_VBAK_I-SUBMI, sy-vline,
  WA_VLCDISPLALV_VBAK_I-LIFSK, sy-vline,
  WA_VLCDISPLALV_VBAK_I-FAKSK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VLCDISPLALV_VBAK_I 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_VLCDISPLALV_VBAK_I 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_VLCDISPLALV_VBAK_I INTO WA_VLCDISPLALV_VBAK_I.


*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 AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_VLCDISPLALV_VBAK_I-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VLCDISPLALV_VBAK_I-AUART.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VBELN_GRP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VLCDISPLALV_VBAK_I-VBELN_GRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VLCDISPLALV_VBAK_I-VBELN_GRP.
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_VLCDISPLALV_VBAK_I_STR, 
ANGDT TYPE STRING,
BNDDT TYPE STRING,
AUDAT TYPE STRING,
VBTYP TYPE STRING,
TRVOG TYPE STRING,
AUART TYPE STRING,
AUGRU TYPE STRING,
GWLDT TYPE STRING,
SUBMI TYPE STRING,
LIFSK TYPE STRING,
FAKSK TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
GSKST TYPE STRING,
GUEBG TYPE STRING,
GUEEN TYPE STRING,
KNUMV TYPE STRING,
VDATU TYPE STRING,
VPRGR TYPE STRING,
AUTLF TYPE STRING,
VBKLA TYPE STRING,
VBKLT TYPE STRING,
KALSM TYPE STRING,
VSBED TYPE STRING,
FKARA TYPE STRING,
KTEXT TYPE STRING,
BSTNK TYPE STRING,
BSARK TYPE STRING,
BSTDK TYPE STRING,
BSTZD TYPE STRING,
IHREZ TYPE STRING,
BNAME TYPE STRING,
TELF1 TYPE STRING,
MAHZA TYPE STRING,
MAHDT TYPE STRING,
KUNNR TYPE STRING,
CU_NAME1 TYPE STRING,
KOSTL TYPE STRING,
STWAE TYPE STRING,
KVGR1 TYPE STRING,
KVGR2 TYPE STRING,
KVGR3 TYPE STRING,
KVGR4 TYPE STRING,
KVGR5 TYPE STRING,
KNUMA TYPE STRING,
KOKRS TYPE STRING,
KURST TYPE STRING,
KKBER TYPE STRING,
KNKLI TYPE STRING,
GRUPP TYPE STRING,
SBGRP TYPE STRING,
CTLPC TYPE STRING,
CMWAE TYPE STRING,
CMFRE TYPE STRING,
CMNUP TYPE STRING,
CMNGV TYPE STRING,
AMTBL TYPE STRING,
HITYP_PR TYPE STRING,
ABRVW TYPE STRING,
ABDIS TYPE STRING,
BUKRS_VF TYPE STRING,
TAXK1 TYPE STRING,
TAXK2 TYPE STRING,
TAXK3 TYPE STRING,
TAXK4 TYPE STRING,
TAXK5 TYPE STRING,
TAXK6 TYPE STRING,
TAXK7 TYPE STRING,
TAXK8 TYPE STRING,
TAXK9 TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
KALSM_CH TYPE STRING,
AGRZR TYPE STRING,
QMNUM TYPE STRING,
VBELN_GRP TYPE STRING,
SCHEME_GRP TYPE STRING,
ABRUF_PART TYPE STRING,
ABHOD TYPE STRING,
ABHOV TYPE STRING,
ABHOB TYPE STRING,
RPLNR TYPE STRING,
VZEIT TYPE STRING,
STCEG_L TYPE STRING,
LANDTX TYPE STRING,
XEGDR TYPE STRING,
ENQUEUE_GRP TYPE STRING,
DAT_FZAU TYPE STRING,
FMBDAT TYPE STRING,
VSNMR_V TYPE STRING,
HANDLE TYPE STRING,
PROLI TYPE STRING,
CONT_DG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VLCDISPLALV_VBAK_I_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_VLCDISPLALV_VBAK_I_STR-ANGDT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-BNDDT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-AUDAT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VBTYP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TRVOG sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-AUART sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-AUGRU sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-GWLDT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-SUBMI sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-LIFSK sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-FAKSK sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VKORG sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VTWEG sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VKGRP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VKBUR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-GSKST sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-GUEBG sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-GUEEN sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KNUMV sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VDATU sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VPRGR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-AUTLF sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VBKLA sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VBKLT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KALSM sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VSBED sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-FKARA sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KTEXT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-BSTNK sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-BSARK sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-BSTDK sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-BSTZD sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-IHREZ sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-BNAME sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TELF1 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-MAHZA sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-MAHDT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KUNNR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-CU_NAME1 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KOSTL sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-STWAE sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KVGR1 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KVGR2 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KVGR3 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KVGR4 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KVGR5 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KNUMA sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KOKRS sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KURST sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KKBER sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KNKLI sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-GRUPP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-SBGRP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-CTLPC sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-CMWAE sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-CMFRE sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-CMNUP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-CMNGV sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-AMTBL sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-HITYP_PR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ABRVW sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ABDIS sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-BUKRS_VF sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK1 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK2 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK3 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK4 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK5 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK6 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK7 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK8 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-TAXK9 sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-XBLNR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ZUONR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-KALSM_CH sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-AGRZR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-QMNUM sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VBELN_GRP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-SCHEME_GRP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ABRUF_PART sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ABHOD sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ABHOV sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ABHOB sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-RPLNR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VZEIT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-STCEG_L sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-LANDTX sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-XEGDR sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-ENQUEUE_GRP sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-DAT_FZAU sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-FMBDAT sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-VSNMR_V sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-HANDLE sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-PROLI sy-vline 
WA_VLCDISPLALV_VBAK_I_STR-CONT_DG sy-vline      INTO ld_text SEPARATED BY SPACE.

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