ABAP Select data from SAP table VWPANLE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VWPANLE
*  INTO TABLE @DATA(IT_VWPANLE2).
*--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_VWPANLE INDEX 1 INTO DATA(WA_VWPANLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VWPANLE>-MANDT = 1.
<VWPANLE>-RANL = 1.
<VWPANLE>-SANLF = 1.
<VWPANLE>-SWPKLASS = 1.
<VWPANLE>-DEBEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VWPANLE-DENDF, sy-vline,
  WA_VWPANLE-BEMIBET, sy-vline,
  WA_VWPANLE-BNOMS, sy-vline,
  WA_VWPANLE-BNHAE, sy-vline,
  WA_VWPANLE-RNWHR, sy-vline,
  WA_VWPANLE-DKEMI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VWPANLE 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_VWPANLE 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_VWPANLE INTO WA_VWPANLE.


*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 RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VWPANLE-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VWPANLE-RANL.
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_VWPANLE_STR, 
MANDT TYPE STRING,
RANL TYPE STRING,
SANLF TYPE STRING,
SWPKLASS TYPE STRING,
DEBEG TYPE STRING,
DENDF TYPE STRING,
BEMIBET TYPE STRING,
BNOMS TYPE STRING,
BNHAE TYPE STRING,
RNWHR TYPE STRING,
DKEMI TYPE STRING,
DKOBL TYPE STRING,
SOPTVERT TYPE STRING,
BATRT TYPE STRING,
SCUEX TYPE STRING,
BOPHE TYPE STRING,
BAUFP TYPE STRING,
RWAUF TYPE STRING,
DWAFB TYPE STRING,
DWAFV TYPE STRING,
BWAVN TYPE STRING,
BWAVZ TYPE STRING,
JAUSL TYPE STRING,
DAUSL TYPE STRING,
BEIVO TYPE STRING,
ANABT TYPE STRING,
BMINABT TYPE STRING,
JVERKBE TYPE STRING,
BDEBET TYPE STRING,
JWEIM TYPE STRING,
JRUECK TYPE STRING,
JANZWE TYPE STRING,
JNACHR TYPE STRING,
SET_NAME TYPE STRING,
ROUNDING_RULE TYPE STRING,
POOL_ID TYPE STRING,
EXP_MAT_DATE TYPE STRING,
TRANCHE_CLASSIF TYPE STRING,
CALC_BEGIN TYPE STRING,
UQB_CALC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VWPANLE_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_VWPANLE_STR-MANDT sy-vline 
WA_VWPANLE_STR-RANL sy-vline 
WA_VWPANLE_STR-SANLF sy-vline 
WA_VWPANLE_STR-SWPKLASS sy-vline 
WA_VWPANLE_STR-DEBEG sy-vline 
WA_VWPANLE_STR-DENDF sy-vline 
WA_VWPANLE_STR-BEMIBET sy-vline 
WA_VWPANLE_STR-BNOMS sy-vline 
WA_VWPANLE_STR-BNHAE sy-vline 
WA_VWPANLE_STR-RNWHR sy-vline 
WA_VWPANLE_STR-DKEMI sy-vline 
WA_VWPANLE_STR-DKOBL sy-vline 
WA_VWPANLE_STR-SOPTVERT sy-vline 
WA_VWPANLE_STR-BATRT sy-vline 
WA_VWPANLE_STR-SCUEX sy-vline 
WA_VWPANLE_STR-BOPHE sy-vline 
WA_VWPANLE_STR-BAUFP sy-vline 
WA_VWPANLE_STR-RWAUF sy-vline 
WA_VWPANLE_STR-DWAFB sy-vline 
WA_VWPANLE_STR-DWAFV sy-vline 
WA_VWPANLE_STR-BWAVN sy-vline 
WA_VWPANLE_STR-BWAVZ sy-vline 
WA_VWPANLE_STR-JAUSL sy-vline 
WA_VWPANLE_STR-DAUSL sy-vline 
WA_VWPANLE_STR-BEIVO sy-vline 
WA_VWPANLE_STR-ANABT sy-vline 
WA_VWPANLE_STR-BMINABT sy-vline 
WA_VWPANLE_STR-JVERKBE sy-vline 
WA_VWPANLE_STR-BDEBET sy-vline 
WA_VWPANLE_STR-JWEIM sy-vline 
WA_VWPANLE_STR-JRUECK sy-vline 
WA_VWPANLE_STR-JANZWE sy-vline 
WA_VWPANLE_STR-JNACHR sy-vline 
WA_VWPANLE_STR-SET_NAME sy-vline 
WA_VWPANLE_STR-ROUNDING_RULE sy-vline 
WA_VWPANLE_STR-POOL_ID sy-vline 
WA_VWPANLE_STR-EXP_MAT_DATE sy-vline 
WA_VWPANLE_STR-TRANCHE_CLASSIF sy-vline 
WA_VWPANLE_STR-CALC_BEGIN sy-vline 
WA_VWPANLE_STR-UQB_CALC sy-vline      INTO ld_text SEPARATED BY SPACE.

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