ABAP Select data from SAP table RFM_PSST_STO_V into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFM_PSST_STO_V
*  INTO TABLE @DATA(IT_RFM_PSST_STO_V2).
*--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_RFM_PSST_STO_V INDEX 1 INTO DATA(WA_RFM_PSST_STO_V2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFM_PSST_STO_V>-MANDT = 1.
<RFM_PSST_STO_V>-EBELN = 1.
<RFM_PSST_STO_V>-EBELP = 1.
<RFM_PSST_STO_V>-AEDAT = 1.
<RFM_PSST_STO_V>-BSART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFM_PSST_STO_V-BATXT, sy-vline,
  WA_RFM_PSST_STO_V-VKORG, sy-vline,
  WA_RFM_PSST_STO_V-VTEXT_VKORG, sy-vline,
  WA_RFM_PSST_STO_V-VTWEG, sy-vline,
  WA_RFM_PSST_STO_V-VTEXT_VTWEG, sy-vline,
  WA_RFM_PSST_STO_V-SPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFM_PSST_STO_V 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_RFM_PSST_STO_V 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_RFM_PSST_STO_V INTO WA_RFM_PSST_STO_V.


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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RFM_PSST_STO_V-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFM_PSST_STO_V-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field RFM_PSST_GROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFM_PSST_STO_V-RFM_PSST_GROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFM_PSST_STO_V-RFM_PSST_GROUP.
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_RFM_PSST_STO_V_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
AEDAT TYPE STRING,
BSART TYPE STRING,
BATXT TYPE STRING,
VKORG TYPE STRING,
VTEXT_VKORG TYPE STRING,
VTWEG TYPE STRING,
VTEXT_VTWEG TYPE STRING,
SPART TYPE STRING,
VTEXT_SPART TYPE STRING,
RESWK TYPE STRING,
VTEXT_NAME1 TYPE STRING,
VSTEL TYPE STRING,
KUNNR TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
SUBMI TYPE STRING,
VDATU TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
WERKS TYPE STRING,
RETPO TYPE STRING,
ABELN TYPE STRING,
ABELP TYPE STRING,
AKTNR TYPE STRING,
SGT_RCAT TYPE STRING,
WRF_CHARSTC1 TYPE STRING,
WRF_CHARSTC2 TYPE STRING,
WRF_CHARSTC3 TYPE STRING,
FSH_SEASON_YEAR TYPE STRING,
FSH_SEASON TYPE STRING,
RFM_SEASON_DESC TYPE STRING,
FSH_COLLECTION TYPE STRING,
RFM_COLLECTION_DES TYPE STRING,
THEME TYPE STRING,
RFM_THEME_DESC TYPE STRING,
MENGE TYPE STRING,
CNFM_QTY TYPE STRING,
LMEIN TYPE STRING,
MEINS TYPE STRING,
RFM_PSST_RULE TYPE STRING,
RFM_PSST_GROUP TYPE STRING,
ALLOC_QTY TYPE STRING,
KUNNR_NAME1 TYPE STRING,
MAKTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFM_PSST_STO_V_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_RFM_PSST_STO_V_STR-MANDT sy-vline 
WA_RFM_PSST_STO_V_STR-EBELN sy-vline 
WA_RFM_PSST_STO_V_STR-EBELP sy-vline 
WA_RFM_PSST_STO_V_STR-AEDAT sy-vline 
WA_RFM_PSST_STO_V_STR-BSART sy-vline 
WA_RFM_PSST_STO_V_STR-BATXT sy-vline 
WA_RFM_PSST_STO_V_STR-VKORG sy-vline 
WA_RFM_PSST_STO_V_STR-VTEXT_VKORG sy-vline 
WA_RFM_PSST_STO_V_STR-VTWEG sy-vline 
WA_RFM_PSST_STO_V_STR-VTEXT_VTWEG sy-vline 
WA_RFM_PSST_STO_V_STR-SPART sy-vline 
WA_RFM_PSST_STO_V_STR-VTEXT_SPART sy-vline 
WA_RFM_PSST_STO_V_STR-RESWK sy-vline 
WA_RFM_PSST_STO_V_STR-VTEXT_NAME1 sy-vline 
WA_RFM_PSST_STO_V_STR-VSTEL sy-vline 
WA_RFM_PSST_STO_V_STR-KUNNR sy-vline 
WA_RFM_PSST_STO_V_STR-EKORG sy-vline 
WA_RFM_PSST_STO_V_STR-EKGRP sy-vline 
WA_RFM_PSST_STO_V_STR-SUBMI sy-vline 
WA_RFM_PSST_STO_V_STR-VDATU sy-vline 
WA_RFM_PSST_STO_V_STR-MATNR sy-vline 
WA_RFM_PSST_STO_V_STR-MATKL sy-vline 
WA_RFM_PSST_STO_V_STR-WERKS sy-vline 
WA_RFM_PSST_STO_V_STR-RETPO sy-vline 
WA_RFM_PSST_STO_V_STR-ABELN sy-vline 
WA_RFM_PSST_STO_V_STR-ABELP sy-vline 
WA_RFM_PSST_STO_V_STR-AKTNR sy-vline 
WA_RFM_PSST_STO_V_STR-SGT_RCAT sy-vline 
WA_RFM_PSST_STO_V_STR-WRF_CHARSTC1 sy-vline 
WA_RFM_PSST_STO_V_STR-WRF_CHARSTC2 sy-vline 
WA_RFM_PSST_STO_V_STR-WRF_CHARSTC3 sy-vline 
WA_RFM_PSST_STO_V_STR-FSH_SEASON_YEAR sy-vline 
WA_RFM_PSST_STO_V_STR-FSH_SEASON sy-vline 
WA_RFM_PSST_STO_V_STR-RFM_SEASON_DESC sy-vline 
WA_RFM_PSST_STO_V_STR-FSH_COLLECTION sy-vline 
WA_RFM_PSST_STO_V_STR-RFM_COLLECTION_DES sy-vline 
WA_RFM_PSST_STO_V_STR-THEME sy-vline 
WA_RFM_PSST_STO_V_STR-RFM_THEME_DESC sy-vline 
WA_RFM_PSST_STO_V_STR-MENGE sy-vline 
WA_RFM_PSST_STO_V_STR-CNFM_QTY sy-vline 
WA_RFM_PSST_STO_V_STR-LMEIN sy-vline 
WA_RFM_PSST_STO_V_STR-MEINS sy-vline 
WA_RFM_PSST_STO_V_STR-RFM_PSST_RULE sy-vline 
WA_RFM_PSST_STO_V_STR-RFM_PSST_GROUP sy-vline 
WA_RFM_PSST_STO_V_STR-ALLOC_QTY sy-vline 
WA_RFM_PSST_STO_V_STR-KUNNR_NAME1 sy-vline 
WA_RFM_PSST_STO_V_STR-MAKTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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