ABAP Select data from SAP table VDZNHLP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDZNHLP
*  INTO TABLE @DATA(IT_VDZNHLP2).
*--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_VDZNHLP INDEX 1 INTO DATA(WA_VDZNHLP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDZNHLP>-KUNNR = 1.
<VDZNHLP>-RKLAMMER = 1.
<VDZNHLP>-ABETR = 1.
<VDZNHLP>-WAERS = 1.
<VDZNHLP>-WAERS_A = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDZNHLP-SBEWART, sy-vline,
  WA_VDZNHLP-XBEWART, sy-vline,
  WA_VDZNHLP-SGTXT, sy-vline,
  WA_VDZNHLP-XDNADRH, sy-vline,
  WA_VDZNHLP-VALUT, sy-vline,
  WA_VDZNHLP-ZLSCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDZNHLP 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_VDZNHLP 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_VDZNHLP INTO WA_VDZNHLP.


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

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

*Conversion exit ALPHA, internal->external for field VERTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDZNHLP-VERTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDZNHLP-VERTN.
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_VDZNHLP_STR, 
KUNNR TYPE STRING,
RKLAMMER TYPE STRING,
ABETR TYPE STRING,
WAERS TYPE STRING,
WAERS_A TYPE STRING,
SBEWART TYPE STRING,
XBEWART TYPE STRING,
SGTXT TYPE STRING,
XDNADRH TYPE STRING,
VALUT TYPE STRING,
ZLSCH TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BANKA TYPE STRING,
BVTYP TYPE STRING,
PARTN TYPE STRING,
SGWAERS TYPE STRING,
SGBTR TYPE STRING,
HGWAERS TYPE STRING,
HGBTR TYPE STRING,
VERTN TYPE STRING,
VWEZW01 TYPE STRING,
VWEZW02 TYPE STRING,
VWEZW03 TYPE STRING,
VWEZW04 TYPE STRING,
VWEZW05 TYPE STRING,
VWEZW06 TYPE STRING,
VWEZW07 TYPE STRING,
VWEZW08 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDZNHLP_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_VDZNHLP_STR-KUNNR sy-vline 
WA_VDZNHLP_STR-RKLAMMER sy-vline 
WA_VDZNHLP_STR-ABETR sy-vline 
WA_VDZNHLP_STR-WAERS sy-vline 
WA_VDZNHLP_STR-WAERS_A sy-vline 
WA_VDZNHLP_STR-SBEWART sy-vline 
WA_VDZNHLP_STR-XBEWART sy-vline 
WA_VDZNHLP_STR-SGTXT sy-vline 
WA_VDZNHLP_STR-XDNADRH sy-vline 
WA_VDZNHLP_STR-VALUT sy-vline 
WA_VDZNHLP_STR-ZLSCH sy-vline 
WA_VDZNHLP_STR-BANKS sy-vline 
WA_VDZNHLP_STR-BANKL sy-vline 
WA_VDZNHLP_STR-BANKN sy-vline 
WA_VDZNHLP_STR-BANKA sy-vline 
WA_VDZNHLP_STR-BVTYP sy-vline 
WA_VDZNHLP_STR-PARTN sy-vline 
WA_VDZNHLP_STR-SGWAERS sy-vline 
WA_VDZNHLP_STR-SGBTR sy-vline 
WA_VDZNHLP_STR-HGWAERS sy-vline 
WA_VDZNHLP_STR-HGBTR sy-vline 
WA_VDZNHLP_STR-VERTN sy-vline 
WA_VDZNHLP_STR-VWEZW01 sy-vline 
WA_VDZNHLP_STR-VWEZW02 sy-vline 
WA_VDZNHLP_STR-VWEZW03 sy-vline 
WA_VDZNHLP_STR-VWEZW04 sy-vline 
WA_VDZNHLP_STR-VWEZW05 sy-vline 
WA_VDZNHLP_STR-VWEZW06 sy-vline 
WA_VDZNHLP_STR-VWEZW07 sy-vline 
WA_VDZNHLP_STR-VWEZW08 sy-vline      INTO ld_text SEPARATED BY SPACE.

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