ABAP Select data from SAP table RFM_S_PRMERCHV_SERV_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFM_S_PRMERCHV_SERV_DATA 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_S_PRMERCHV_SERV_DATA. 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_S_PRMERCHV_SERV_DATA 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_S_PRMERCHV_SERV_DATA TYPE STANDARD TABLE OF RFM_S_PRMERCHV_SERV_DATA,
      WA_RFM_S_PRMERCHV_SERV_DATA TYPE RFM_S_PRMERCHV_SERV_DATA,
      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_S_PRMERCHV_SERV_DATA> TYPE RFM_S_PRMERCHV_SERV_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFM_S_PRMERCHV_SERV_DATA
*  INTO TABLE @DATA(IT_RFM_S_PRMERCHV_SERV_DATA2).
*--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_S_PRMERCHV_SERV_DATA INDEX 1 INTO DATA(WA_RFM_S_PRMERCHV_SERV_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFM_S_PRMERCHV_SERV_DATA>-PRODUCT = 1.
<RFM_S_PRMERCHV_SERV_DATA>-PRODUCTTYPE = 1.
<RFM_S_PRMERCHV_SERV_DATA>-PRODUCTCATEGORY = 1.
<RFM_S_PRMERCHV_SERV_DATA>-PRODUCTGROUP = 1.
<RFM_S_PRMERCHV_SERV_DATA>-PRODUCTGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFM_S_PRMERCHV_SERV_DATA-EXTERNALPRODUCTGROUP, sy-vline,
  WA_RFM_S_PRMERCHV_SERV_DATA-PRODHIERASSIGN_TAB, sy-vline,
  WA_RFM_S_PRMERCHV_SERV_DATA-HASEMPTIESBOM, sy-vline,
  WA_RFM_S_PRMERCHV_SERV_DATA-PRODUCTUSAGETYPE, sy-vline,
  WA_RFM_S_PRMERCHV_SERV_DATA-PRODUCTTYPECODE, sy-vline,
  WA_RFM_S_PRMERCHV_SERV_DATA-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFM_S_PRMERCHV_SERV_DATA 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_S_PRMERCHV_SERV_DATA 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_S_PRMERCHV_SERV_DATA INTO WA_RFM_S_PRMERCHV_SERV_DATA.


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

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

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

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_RFM_S_PRMERCHV_SERV_DATA-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFM_S_PRMERCHV_SERV_DATA-EAN11.
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_S_PRMERCHV_SERV_DATA_STR, 
PRODUCT TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTCATEGORY TYPE STRING,
PRODUCTGROUP TYPE STRING,
PRODUCTGROUP TYPE STRING,
EXTERNALPRODUCTGROUP TYPE STRING,
PRODHIERASSIGN_TAB TYPE STRING,
HASEMPTIESBOM TYPE STRING,
PRODUCTUSAGETYPE TYPE STRING,
PRODUCTTYPECODE TYPE STRING,
PLANT TYPE STRING,
PLANTCUSTOMER TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
POSPC TYPE STRING,
KWDHT TYPE STRING,
PRERF TYPE STRING,
RBZUL TYPE STRING,
SCAGR TYPE STRING,
PRIMW TYPE STRING,
ARANZ TYPE STRING,
MAKTX_TAB TYPE STRING,
MEAN_TAB TYPE STRING,
MARM_TAB TYPE STRING,
MARM_CONV_TAB TYPE STRING,
REF_MATERIAL TYPE STRING,
MATNR TYPE STRING,
EAN11 TYPE STRING,
PROPERTY_VALUES TYPE STRING,
MAMT_TAB TYPE STRING,
TAX_TAB TYPE STRING,
EBOM TYPE STRING,
MMBOM TYPE STRING,
PROC_PRICES_TAB TYPE STRING,
SALES_PRICES_TAB TYPE STRING,
CHGID TYPE STRING,
GLOBAL_TRADE_ITEM_NUMBERS TYPE STRING,
DUMMY_PRD_INCL_EEW_PS TYPE STRING,
INFO_PROPERTY_VALUES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFM_S_PRMERCHV_SERV_DATA_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_S_PRMERCHV_SERV_DATA_STR-PRODUCT sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRODUCTTYPE sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRODUCTCATEGORY sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRODUCTGROUP sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRODUCTGROUP sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-EXTERNALPRODUCTGROUP sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRODHIERASSIGN_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-HASEMPTIESBOM sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRODUCTUSAGETYPE sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRODUCTTYPECODE sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PLANT sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PLANTCUSTOMER sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-SALESORGANIZATION sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-POSPC sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-KWDHT sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRERF sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-RBZUL sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-SCAGR sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PRIMW sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-ARANZ sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-MAKTX_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-MEAN_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-MARM_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-MARM_CONV_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-REF_MATERIAL sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-MATNR sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-EAN11 sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PROPERTY_VALUES sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-MAMT_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-TAX_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-EBOM sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-MMBOM sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-PROC_PRICES_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-SALES_PRICES_TAB sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-CHGID sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-GLOBAL_TRADE_ITEM_NUMBERS sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-DUMMY_PRD_INCL_EEW_PS sy-vline 
WA_RFM_S_PRMERCHV_SERV_DATA_STR-INFO_PROPERTY_VALUES sy-vline      INTO ld_text SEPARATED BY SPACE.

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