ABAP Select data from SAP table RPCS97P0_ALV2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCS97P0_ALV2 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 RPCS97P0_ALV2. 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 RPCS97P0_ALV2 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_RPCS97P0_ALV2 TYPE STANDARD TABLE OF RPCS97P0_ALV2,
      WA_RPCS97P0_ALV2 TYPE RPCS97P0_ALV2,
      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: <RPCS97P0_ALV2> TYPE RPCS97P0_ALV2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCS97P0_ALV2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCS97P0_ALV2
  INTO TABLE IT_RPCS97P0_ALV2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCS97P0_ALV2
*  INTO TABLE @DATA(IT_RPCS97P0_ALV22).
*--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_RPCS97P0_ALV2 INDEX 1 INTO DATA(WA_RPCS97P0_ALV22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCS97P0_ALV2 ASSIGNING <RPCS97P0_ALV2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCS97P0_ALV2>-TEXT2 = 1.
<RPCS97P0_ALV2>-BETRG = 1.
<RPCS97P0_ALV2>-ANZHL = 1.
<RPCS97P0_ALV2>-BETPE = 1.
<RPCS97P0_ALV2>-TEXT = 1.

ENDLOOP.

LOOP AT IT_RPCS97P0_ALV2 INTO WA_RPCS97P0_ALV2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCS97P0_ALV2-TEXT1, sy-vline,
  WA_RPCS97P0_ALV2-SSPRC, sy-vline,
  WA_RPCS97P0_ALV2-TEXT4, sy-vline,
  WA_RPCS97P0_ALV2-TEXT5, sy-vline,
  WA_RPCS97P0_ALV2-BETRG1, sy-vline,
  WA_RPCS97P0_ALV2-ANZHL1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCS97P0_ALV2 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_RPCS97P0_ALV2 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_RPCS97P0_ALV2 INTO WA_RPCS97P0_ALV2.


*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_RPCS97P0_ALV2_STR, 
TEXT2 TYPE STRING,
BETRG TYPE STRING,
ANZHL TYPE STRING,
BETPE TYPE STRING,
TEXT TYPE STRING,
TEXT1 TYPE STRING,
SSPRC TYPE STRING,
TEXT4 TYPE STRING,
TEXT5 TYPE STRING,
BETRG1 TYPE STRING,
ANZHL1 TYPE STRING,
BETPE1 TYPE STRING,
CURRN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCS97P0_ALV2_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_RPCS97P0_ALV2_STR-TEXT2 sy-vline 
WA_RPCS97P0_ALV2_STR-BETRG sy-vline 
WA_RPCS97P0_ALV2_STR-ANZHL sy-vline 
WA_RPCS97P0_ALV2_STR-BETPE sy-vline 
WA_RPCS97P0_ALV2_STR-TEXT sy-vline 
WA_RPCS97P0_ALV2_STR-TEXT1 sy-vline 
WA_RPCS97P0_ALV2_STR-SSPRC sy-vline 
WA_RPCS97P0_ALV2_STR-TEXT4 sy-vline 
WA_RPCS97P0_ALV2_STR-TEXT5 sy-vline 
WA_RPCS97P0_ALV2_STR-BETRG1 sy-vline 
WA_RPCS97P0_ALV2_STR-ANZHL1 sy-vline 
WA_RPCS97P0_ALV2_STR-BETPE1 sy-vline 
WA_RPCS97P0_ALV2_STR-CURRN sy-vline      INTO ld_text SEPARATED BY SPACE.

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