ABAP Select data from SAP table ROSP_CSV_ACR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROSP_CSV_ACR
*  INTO TABLE @DATA(IT_ROSP_CSV_ACR2).
*--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_ROSP_CSV_ACR INDEX 1 INTO DATA(WA_ROSP_CSV_ACR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROSP_CSV_ACR>-HEADER = 1.
<ROSP_CSV_ACR>-HEADER01 = 1.
<ROSP_CSV_ACR>-HEADER02 = 1.
<ROSP_CSV_ACR>-HEADER03 = 1.
<ROSP_CSV_ACR>-HEADER04 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROSP_CSV_ACR-HEADER05, sy-vline,
  WA_ROSP_CSV_ACR-HEADER06, sy-vline,
  WA_ROSP_CSV_ACR-HEADER07, sy-vline,
  WA_ROSP_CSV_ACR-HEADER08, sy-vline,
  WA_ROSP_CSV_ACR-HEADER09, sy-vline,
  WA_ROSP_CSV_ACR-HEADER10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROSP_CSV_ACR 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_ROSP_CSV_ACR 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_ROSP_CSV_ACR INTO WA_ROSP_CSV_ACR.


*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_ROSP_CSV_ACR_STR, 
HEADER TYPE STRING,
HEADER01 TYPE STRING,
HEADER02 TYPE STRING,
HEADER03 TYPE STRING,
HEADER04 TYPE STRING,
HEADER05 TYPE STRING,
HEADER06 TYPE STRING,
HEADER07 TYPE STRING,
HEADER08 TYPE STRING,
HEADER09 TYPE STRING,
HEADER10 TYPE STRING,
HEADER11 TYPE STRING,
HEADER12 TYPE STRING,
HEADER13 TYPE STRING,
HEADER14 TYPE STRING,
HEADER15 TYPE STRING,
HEADER16 TYPE STRING,
HEADER17 TYPE STRING,
HEADER18 TYPE STRING,
HEADER19 TYPE STRING,
HEADER20 TYPE STRING,
HEADER21 TYPE STRING,
HEADER22 TYPE STRING,
HEADER23 TYPE STRING,
HEADER24 TYPE STRING,
HEADER25 TYPE STRING,
HEADER26 TYPE STRING,
HEADER27 TYPE STRING,
HEADER28 TYPE STRING,
HEADER29 TYPE STRING,
ITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROSP_CSV_ACR_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_ROSP_CSV_ACR_STR-HEADER sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER01 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER02 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER03 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER04 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER05 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER06 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER07 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER08 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER09 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER10 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER11 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER12 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER13 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER14 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER15 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER16 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER17 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER18 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER19 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER20 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER21 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER22 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER23 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER24 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER25 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER26 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER27 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER28 sy-vline 
WA_ROSP_CSV_ACR_STR-HEADER29 sy-vline 
WA_ROSP_CSV_ACR_STR-ITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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