ABAP Select data from SAP table RISH_NL_VAL_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RISH_NL_VAL_LIST
*  INTO TABLE @DATA(IT_RISH_NL_VAL_LIST2).
*--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_RISH_NL_VAL_LIST INDEX 1 INTO DATA(WA_RISH_NL_VAL_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RISH_NL_VAL_LIST>-EINRI = 1.
<RISH_NL_VAL_LIST>-DBC = 1.
<RISH_NL_VAL_LIST>-SPEC = 1.
<RISH_NL_VAL_LIST>-BEGDT = 1.
<RISH_NL_VAL_LIST>-ENDDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RISH_NL_VAL_LIST-THERAP, sy-vline,
  WA_RISH_NL_VAL_LIST-PAT_NAME, sy-vline,
  WA_RISH_NL_VAL_LIST-PAT_GBDAT, sy-vline,
  WA_RISH_NL_VAL_LIST-TREATMENT, sy-vline,
  WA_RISH_NL_VAL_LIST-MANDT, sy-vline,
  WA_RISH_NL_VAL_LIST-EINRI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RISH_NL_VAL_LIST 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_RISH_NL_VAL_LIST 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_RISH_NL_VAL_LIST INTO WA_RISH_NL_VAL_LIST.


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

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

*Conversion exit ALPHA, internal->external for field ZW_LEIST_1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_4
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_6
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_7
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_8
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_8
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_8.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_9
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_9
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_9.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZW_LEIST_10
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RISH_NL_VAL_LIST-ZW_LEIST_10
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RISH_NL_VAL_LIST-ZW_LEIST_10.
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_RISH_NL_VAL_LIST_STR, 
EINRI TYPE STRING,
DBC TYPE STRING,
SPEC TYPE STRING,
BEGDT TYPE STRING,
ENDDT TYPE STRING,
THERAP TYPE STRING,
PAT_NAME TYPE STRING,
PAT_GBDAT TYPE STRING,
TREATMENT TYPE STRING,
MANDT TYPE STRING,
EINRI TYPE STRING,
SPEC TYPE STRING,
RANGF TYPE STRING,
THERAP_EXT TYPE STRING,
THERAP TYPE STRING,
ZORGT TYPE STRING,
ZORGVR TYPE STRING,
DIAGN TYPE STRING,
ENDDT TYPE STRING,
BEGDT TYPE STRING,
ZW_KL_1 TYPE STRING,
ZW_KL_2 TYPE STRING,
ZW_KL_3 TYPE STRING,
ZW_KL_4 TYPE STRING,
ZW_KL_5 TYPE STRING,
ZW_KL_6 TYPE STRING,
ZW_KL_7 TYPE STRING,
ZW_KL_8 TYPE STRING,
ZW_KL_9 TYPE STRING,
ZW_KL_10 TYPE STRING,
ZW_KL_11 TYPE STRING,
ZW_KL_12 TYPE STRING,
ZW_KL_13 TYPE STRING,
ZW_KL_14 TYPE STRING,
ZW_KL_15 TYPE STRING,
ZW_KL_16 TYPE STRING,
ZW_KL_17 TYPE STRING,
ZW_KL_18 TYPE STRING,
ZW_KL_19 TYPE STRING,
ZW_KL_20 TYPE STRING,
ALTERKLASSE TYPE STRING,
ZW_LEIST_1 TYPE STRING,
ZW_MENGE_1 TYPE STRING,
ZW_LEIST_2 TYPE STRING,
ZW_MENGE_2 TYPE STRING,
ZW_LEIST_3 TYPE STRING,
ZW_MENGE_3 TYPE STRING,
ZW_LEIST_4 TYPE STRING,
ZW_MENGE_4 TYPE STRING,
ZW_LEIST_5 TYPE STRING,
ZW_MENGE_5 TYPE STRING,
ZW_LEIST_6 TYPE STRING,
ZW_MENGE_6 TYPE STRING,
ZW_LEIST_7 TYPE STRING,
ZW_MENGE_7 TYPE STRING,
ZW_LEIST_8 TYPE STRING,
ZW_MENGE_8 TYPE STRING,
ZW_LEIST_9 TYPE STRING,
ZW_MENGE_9 TYPE STRING,
ZW_LEIST_10 TYPE STRING,
ZW_MENGE_10 TYPE STRING,
SETTING TYPE STRING,
TREATMENT_TYPE TYPE STRING,
STATUS TYPE STRING,
RET_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RISH_NL_VAL_LIST_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_RISH_NL_VAL_LIST_STR-EINRI sy-vline 
WA_RISH_NL_VAL_LIST_STR-DBC sy-vline 
WA_RISH_NL_VAL_LIST_STR-SPEC sy-vline 
WA_RISH_NL_VAL_LIST_STR-BEGDT sy-vline 
WA_RISH_NL_VAL_LIST_STR-ENDDT sy-vline 
WA_RISH_NL_VAL_LIST_STR-THERAP sy-vline 
WA_RISH_NL_VAL_LIST_STR-PAT_NAME sy-vline 
WA_RISH_NL_VAL_LIST_STR-PAT_GBDAT sy-vline 
WA_RISH_NL_VAL_LIST_STR-TREATMENT sy-vline 
WA_RISH_NL_VAL_LIST_STR-MANDT sy-vline 
WA_RISH_NL_VAL_LIST_STR-EINRI sy-vline 
WA_RISH_NL_VAL_LIST_STR-SPEC sy-vline 
WA_RISH_NL_VAL_LIST_STR-RANGF sy-vline 
WA_RISH_NL_VAL_LIST_STR-THERAP_EXT sy-vline 
WA_RISH_NL_VAL_LIST_STR-THERAP sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZORGT sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZORGVR sy-vline 
WA_RISH_NL_VAL_LIST_STR-DIAGN sy-vline 
WA_RISH_NL_VAL_LIST_STR-ENDDT sy-vline 
WA_RISH_NL_VAL_LIST_STR-BEGDT sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_1 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_2 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_3 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_4 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_5 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_6 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_7 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_8 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_9 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_10 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_11 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_12 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_13 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_14 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_15 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_16 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_17 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_18 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_19 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_KL_20 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ALTERKLASSE sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_1 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_1 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_2 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_2 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_3 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_3 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_4 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_4 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_5 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_5 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_6 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_6 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_7 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_7 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_8 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_8 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_9 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_9 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_LEIST_10 sy-vline 
WA_RISH_NL_VAL_LIST_STR-ZW_MENGE_10 sy-vline 
WA_RISH_NL_VAL_LIST_STR-SETTING sy-vline 
WA_RISH_NL_VAL_LIST_STR-TREATMENT_TYPE sy-vline 
WA_RISH_NL_VAL_LIST_STR-STATUS sy-vline 
WA_RISH_NL_VAL_LIST_STR-RET_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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