ABAP Select data from SAP table V_TCACS_NDPRO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TCACS_NDPRO
*  INTO TABLE @DATA(IT_V_TCACS_NDPRO2).
*--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_V_TCACS_NDPRO INDEX 1 INTO DATA(WA_V_TCACS_NDPRO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TCACS_NDPRO>-TREE_PROFILE = 1.
<V_TCACS_NDPRO>-X_N_IMAGE = 1.
<V_TCACS_NDPRO>-X_EXP_IMAGE = 1.
<V_TCACS_NDPRO>-X_LEAF_IMAGE = 1.
<V_TCACS_NDPRO>-TC_N_IMAGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TCACS_NDPRO-TC_EXP_IMAGE, sy-vline,
  WA_V_TCACS_NDPRO-TC_LEAF_IMAG, sy-vline,
  WA_V_TCACS_NDPRO-AC_INAC_IMAG, sy-vline,
  WA_V_TCACS_NDPRO-STYLE_ND, sy-vline,
  WA_V_TCACS_NDPRO-TREE_TYPE, sy-vline,
  WA_V_TCACS_NDPRO-NDDESC_STRUC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TCACS_NDPRO 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_V_TCACS_NDPRO 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_V_TCACS_NDPRO INTO WA_V_TCACS_NDPRO.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_V_TCACS_NDPRO_STR, 
TREE_PROFILE TYPE STRING,
X_N_IMAGE TYPE STRING,
X_EXP_IMAGE TYPE STRING,
X_LEAF_IMAGE TYPE STRING,
TC_N_IMAGE TYPE STRING,
TC_EXP_IMAGE TYPE STRING,
TC_LEAF_IMAG TYPE STRING,
AC_INAC_IMAG TYPE STRING,
STYLE_ND TYPE STRING,
TREE_TYPE TYPE STRING,
NDDESC_STRUC TYPE STRING,
NODE_KEY TYPE STRING,
ITEM_NAME TYPE STRING,
CLASS TYPE STRING,
FONT TYPE STRING,
DISABLED TYPE STRING,
EDITABLE TYPE STRING,
HIDDEN TYPE STRING,
ALIGNMENT TYPE STRING,
T_IMAGE TYPE STRING,
CHOSEN TYPE STRING,
TOGG_RIGHT TYPE STRING,
STYLE TYPE STRING,
LENGTH TYPE STRING,
LENGTH_PIX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TCACS_NDPRO_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_V_TCACS_NDPRO_STR-TREE_PROFILE sy-vline 
WA_V_TCACS_NDPRO_STR-X_N_IMAGE sy-vline 
WA_V_TCACS_NDPRO_STR-X_EXP_IMAGE sy-vline 
WA_V_TCACS_NDPRO_STR-X_LEAF_IMAGE sy-vline 
WA_V_TCACS_NDPRO_STR-TC_N_IMAGE sy-vline 
WA_V_TCACS_NDPRO_STR-TC_EXP_IMAGE sy-vline 
WA_V_TCACS_NDPRO_STR-TC_LEAF_IMAG sy-vline 
WA_V_TCACS_NDPRO_STR-AC_INAC_IMAG sy-vline 
WA_V_TCACS_NDPRO_STR-STYLE_ND sy-vline 
WA_V_TCACS_NDPRO_STR-TREE_TYPE sy-vline 
WA_V_TCACS_NDPRO_STR-NDDESC_STRUC sy-vline 
WA_V_TCACS_NDPRO_STR-NODE_KEY sy-vline 
WA_V_TCACS_NDPRO_STR-ITEM_NAME sy-vline 
WA_V_TCACS_NDPRO_STR-CLASS sy-vline 
WA_V_TCACS_NDPRO_STR-FONT sy-vline 
WA_V_TCACS_NDPRO_STR-DISABLED sy-vline 
WA_V_TCACS_NDPRO_STR-EDITABLE sy-vline 
WA_V_TCACS_NDPRO_STR-HIDDEN sy-vline 
WA_V_TCACS_NDPRO_STR-ALIGNMENT sy-vline 
WA_V_TCACS_NDPRO_STR-T_IMAGE sy-vline 
WA_V_TCACS_NDPRO_STR-CHOSEN sy-vline 
WA_V_TCACS_NDPRO_STR-TOGG_RIGHT sy-vline 
WA_V_TCACS_NDPRO_STR-STYLE sy-vline 
WA_V_TCACS_NDPRO_STR-LENGTH sy-vline 
WA_V_TCACS_NDPRO_STR-LENGTH_PIX sy-vline      INTO ld_text SEPARATED BY SPACE.

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