ABAP Select data from SAP table RMSLS_DYNP_VIEW_INGREDIENT_LT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMSLS_DYNP_VIEW_INGREDIENT_LT
*  INTO TABLE @DATA(IT_RMSLS_DYNP_VIEW_INGREDIENT_LT2).
*--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_RMSLS_DYNP_VIEW_INGREDIENT_LT INDEX 1 INTO DATA(WA_RMSLS_DYNP_VIEW_INGREDIENT_LT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMSLS_DYNP_VIEW_INGREDIENT_LT>-LISTCNT = 1.
<RMSLS_DYNP_VIEW_INGREDIENT_LT>-ITEMCNT = 1.
<RMSLS_DYNP_VIEW_INGREDIENT_LT>-POSNR = 1.
<RMSLS_DYNP_VIEW_INGREDIENT_LT>-MASTER_NO = 1.
<RMSLS_DYNP_VIEW_INGREDIENT_LT>-HLEVEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-HTYPE, sy-vline,
  WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-FLG_SHOW_ITEM, sy-vline,
  WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-INGREDIENT, sy-vline,
  WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-INGREDIENT_TXT, sy-vline,
  WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-INGREDIENT_UI, sy-vline,
  WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-FLG_SUB_IN_EXIST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMSLS_DYNP_VIEW_INGREDIENT_LT 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_RMSLS_DYNP_VIEW_INGREDIENT_LT 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_RMSLS_DYNP_VIEW_INGREDIENT_LT INTO WA_RMSLS_DYNP_VIEW_INGREDIENT_LT.


*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 CUNIT, internal->external for field UNIT_CALC
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-UNIT_CALC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-UNIT_CALC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_DECL
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-UNIT_DECL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMSLS_DYNP_VIEW_INGREDIENT_LT-UNIT_DECL.
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_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR, 
LISTCNT TYPE STRING,
ITEMCNT TYPE STRING,
POSNR TYPE STRING,
MASTER_NO TYPE STRING,
HLEVEL TYPE STRING,
HTYPE TYPE STRING,
FLG_SHOW_ITEM TYPE STRING,
INGREDIENT TYPE STRING,
INGREDIENT_TXT TYPE STRING,
INGREDIENT_UI TYPE STRING,
FLG_SUB_IN_EXIST TYPE STRING,
COMPCAT TYPE STRING,
COMPCAT_TXT TYPE STRING,
LABEL_NAME TYPE STRING,
LABEL_NAME_TXT TYPE STRING,
VALUE_CALC TYPE STRING,
UNIT_CALC TYPE STRING,
VALUE_DECL TYPE STRING,
UNIT_DECL TYPE STRING,
DECIMALS_DECL TYPE STRING,
FLG_VISBL_CONT TYPE STRING,
FLG_FOOTNOTE TYPE STRING,
KEYDATE TYPE STRING,
TYPE TYPE STRING,
PARENT_NO TYPE STRING,
FLG_HIDDEN TYPE STRING,
MASTER_TYPE TYPE STRING,
FLG_UNDO TYPE STRING,
UNDO_TYPE_TXT TYPE STRING,
ROW_TYPE TYPE STRING,
FLG_ALLERGEN_CALC TYPE STRING,
FLG_ALLERGEN_DECL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_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_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-LISTCNT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-ITEMCNT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-POSNR sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-MASTER_NO sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-HLEVEL sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-HTYPE sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_SHOW_ITEM sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-INGREDIENT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-INGREDIENT_TXT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-INGREDIENT_UI sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_SUB_IN_EXIST sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-COMPCAT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-COMPCAT_TXT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-LABEL_NAME sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-LABEL_NAME_TXT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-VALUE_CALC sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-UNIT_CALC sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-VALUE_DECL sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-UNIT_DECL sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-DECIMALS_DECL sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_VISBL_CONT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_FOOTNOTE sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-KEYDATE sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-TYPE sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-PARENT_NO sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_HIDDEN sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-MASTER_TYPE sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_UNDO sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-UNDO_TYPE_TXT sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-ROW_TYPE sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_ALLERGEN_CALC sy-vline 
WA_RMSLS_DYNP_VIEW_INGREDIENT_LT_STR-FLG_ALLERGEN_DECL sy-vline      INTO ld_text SEPARATED BY SPACE.

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