ABAP Select data from SAP table VISETS_VW_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VISETS_VW_ALV
*  INTO TABLE @DATA(IT_VISETS_VW_ALV2).
*--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_VISETS_VW_ALV INDEX 1 INTO DATA(WA_VISETS_VW_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VISETS_VW_ALV>-OBART = 1.
<VISETS_VW_ALV>-OBJID = 1.
<VISETS_VW_ALV>-OBJTXT = 1.
<VISETS_VW_ALV>-J_OBJNR = 1.
<VISETS_VW_ALV>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VISETS_VW_ALV-BUTXT, sy-vline,
  WA_VISETS_VW_ALV-SVWNR, sy-vline,
  WA_VISETS_VW_ALV-DVWBEG, sy-vline,
  WA_VISETS_VW_ALV-DVWEND, sy-vline,
  WA_VISETS_VW_ALV-LAUFZ, sy-vline,
  WA_VISETS_VW_ALV-VERL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VISETS_VW_ALV 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_VISETS_VW_ALV 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_VISETS_VW_ALV INTO WA_VISETS_VW_ALV.


*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 SVWNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VISETS_VW_ALV-SVWNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VISETS_VW_ALV-SVWNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VISETS_VW_ALV-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VISETS_VW_ALV-LIFNR.
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_VISETS_VW_ALV_STR, 
OBART TYPE STRING,
OBJID TYPE STRING,
OBJTXT TYPE STRING,
J_OBJNR TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
SVWNR TYPE STRING,
DVWBEG TYPE STRING,
DVWEND TYPE STRING,
LAUFZ TYPE STRING,
VERL TYPE STRING,
GSBER TYPE STRING,
GTEXT TYPE STRING,
GSBER_LOG TYPE STRING,
GTEXT_LOG TYPE STRING,
PRCTR TYPE STRING,
KTEXT TYPE STRING,
PRCTR_LOG TYPE STRING,
KTEXT_LOG TYPE STRING,
KOKRS TYPE STRING,
BEZEI TYPE STRING,
TXJCD TYPE STRING,
TXJCD_LOG TYPE STRING,
BERGRP TYPE STRING,
AKUEFR TYPE STRING,
DKUEAM TYPE STRING,
DKUEZUM TYPE STRING,
WAERS TYPE STRING,
DVWSOLL TYPE STRING,
DVWABR TYPE STRING,
BUKRSPRT TYPE STRING,
GSBERPRT TYPE STRING,
BUKRS_OBJ TYPE STRING,
KUNNR TYPE STRING,
ZLSCH_DEB TYPE STRING,
ZAHLS_DEB TYPE STRING,
HBKID_DEB TYPE STRING,
LIFNR TYPE STRING,
ZLSCH_KRED TYPE STRING,
ZAHLS_KRED TYPE STRING,
HBKID_KRED TYPE STRING,
KOEIGR TYPE STRING,
KZESR TYPE STRING,
ESRNR_EIG TYPE STRING,
ESRKUID_EIG TYPE STRING,
KZMWST TYPE STRING,
MWSTNR_EIG TYPE STRING,
KZEIGGKT TYPE STRING,
BUKRS_GKT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VISETS_VW_ALV_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_VISETS_VW_ALV_STR-OBART sy-vline 
WA_VISETS_VW_ALV_STR-OBJID sy-vline 
WA_VISETS_VW_ALV_STR-OBJTXT sy-vline 
WA_VISETS_VW_ALV_STR-J_OBJNR sy-vline 
WA_VISETS_VW_ALV_STR-BUKRS sy-vline 
WA_VISETS_VW_ALV_STR-BUTXT sy-vline 
WA_VISETS_VW_ALV_STR-SVWNR sy-vline 
WA_VISETS_VW_ALV_STR-DVWBEG sy-vline 
WA_VISETS_VW_ALV_STR-DVWEND sy-vline 
WA_VISETS_VW_ALV_STR-LAUFZ sy-vline 
WA_VISETS_VW_ALV_STR-VERL sy-vline 
WA_VISETS_VW_ALV_STR-GSBER sy-vline 
WA_VISETS_VW_ALV_STR-GTEXT sy-vline 
WA_VISETS_VW_ALV_STR-GSBER_LOG sy-vline 
WA_VISETS_VW_ALV_STR-GTEXT_LOG sy-vline 
WA_VISETS_VW_ALV_STR-PRCTR sy-vline 
WA_VISETS_VW_ALV_STR-KTEXT sy-vline 
WA_VISETS_VW_ALV_STR-PRCTR_LOG sy-vline 
WA_VISETS_VW_ALV_STR-KTEXT_LOG sy-vline 
WA_VISETS_VW_ALV_STR-KOKRS sy-vline 
WA_VISETS_VW_ALV_STR-BEZEI sy-vline 
WA_VISETS_VW_ALV_STR-TXJCD sy-vline 
WA_VISETS_VW_ALV_STR-TXJCD_LOG sy-vline 
WA_VISETS_VW_ALV_STR-BERGRP sy-vline 
WA_VISETS_VW_ALV_STR-AKUEFR sy-vline 
WA_VISETS_VW_ALV_STR-DKUEAM sy-vline 
WA_VISETS_VW_ALV_STR-DKUEZUM sy-vline 
WA_VISETS_VW_ALV_STR-WAERS sy-vline 
WA_VISETS_VW_ALV_STR-DVWSOLL sy-vline 
WA_VISETS_VW_ALV_STR-DVWABR sy-vline 
WA_VISETS_VW_ALV_STR-BUKRSPRT sy-vline 
WA_VISETS_VW_ALV_STR-GSBERPRT sy-vline 
WA_VISETS_VW_ALV_STR-BUKRS_OBJ sy-vline 
WA_VISETS_VW_ALV_STR-KUNNR sy-vline 
WA_VISETS_VW_ALV_STR-ZLSCH_DEB sy-vline 
WA_VISETS_VW_ALV_STR-ZAHLS_DEB sy-vline 
WA_VISETS_VW_ALV_STR-HBKID_DEB sy-vline 
WA_VISETS_VW_ALV_STR-LIFNR sy-vline 
WA_VISETS_VW_ALV_STR-ZLSCH_KRED sy-vline 
WA_VISETS_VW_ALV_STR-ZAHLS_KRED sy-vline 
WA_VISETS_VW_ALV_STR-HBKID_KRED sy-vline 
WA_VISETS_VW_ALV_STR-KOEIGR sy-vline 
WA_VISETS_VW_ALV_STR-KZESR sy-vline 
WA_VISETS_VW_ALV_STR-ESRNR_EIG sy-vline 
WA_VISETS_VW_ALV_STR-ESRKUID_EIG sy-vline 
WA_VISETS_VW_ALV_STR-KZMWST sy-vline 
WA_VISETS_VW_ALV_STR-MWSTNR_EIG sy-vline 
WA_VISETS_VW_ALV_STR-KZEIGGKT sy-vline 
WA_VISETS_VW_ALV_STR-BUKRS_GKT sy-vline      INTO ld_text SEPARATED BY SPACE.

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