ABAP Select data from SAP table ROVERCUBE_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROVERCUBE_S
*  INTO TABLE @DATA(IT_ROVERCUBE_S2).
*--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_ROVERCUBE_S INDEX 1 INTO DATA(WA_ROVERCUBE_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROVERCUBE_S>-COUNTRY = 1.
<ROVERCUBE_S>-REGION = 1.
<ROVERCUBE_S>-KUNNR = 1.
<ROVERCUBE_S>-GJAHR = 1.
<ROVERCUBE_S>-INT4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROVERCUBE_S-FIELD, sy-vline,
  WA_ROVERCUBE_S-ANZHL, sy-vline,
  WA_ROVERCUBE_S-TYPE, sy-vline,
  WA_ROVERCUBE_S-PERIV, sy-vline,
  WA_ROVERCUBE_S-PERIO, sy-vline,
  WA_ROVERCUBE_S-DMBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROVERCUBE_S 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_ROVERCUBE_S 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_ROVERCUBE_S INTO WA_ROVERCUBE_S.


*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 ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROVERCUBE_S-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROVERCUBE_S-ERFME.
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_ROVERCUBE_S_STR, 
COUNTRY TYPE STRING,
REGION TYPE STRING,
KUNNR TYPE STRING,
GJAHR TYPE STRING,
INT4 TYPE STRING,
FIELD TYPE STRING,
ANZHL TYPE STRING,
TYPE TYPE STRING,
PERIV TYPE STRING,
PERIO TYPE STRING,
DMBTR TYPE STRING,
WAERS TYPE STRING,
MGMIN TYPE STRING,
MGMAX TYPE STRING,
ERFME TYPE STRING,
EZDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROVERCUBE_S_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_ROVERCUBE_S_STR-COUNTRY sy-vline 
WA_ROVERCUBE_S_STR-REGION sy-vline 
WA_ROVERCUBE_S_STR-KUNNR sy-vline 
WA_ROVERCUBE_S_STR-GJAHR sy-vline 
WA_ROVERCUBE_S_STR-INT4 sy-vline 
WA_ROVERCUBE_S_STR-FIELD sy-vline 
WA_ROVERCUBE_S_STR-ANZHL sy-vline 
WA_ROVERCUBE_S_STR-TYPE sy-vline 
WA_ROVERCUBE_S_STR-PERIV sy-vline 
WA_ROVERCUBE_S_STR-PERIO sy-vline 
WA_ROVERCUBE_S_STR-DMBTR sy-vline 
WA_ROVERCUBE_S_STR-WAERS sy-vline 
WA_ROVERCUBE_S_STR-MGMIN sy-vline 
WA_ROVERCUBE_S_STR-MGMAX sy-vline 
WA_ROVERCUBE_S_STR-ERFME sy-vline 
WA_ROVERCUBE_S_STR-EZDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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