ABAP Select data from SAP table /PLMB/S_RCA_QUANT_RFO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PLMB/S_RCA_QUANT_RFO 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 /PLMB/S_RCA_QUANT_RFO. 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 /PLMB/S_RCA_QUANT_RFO 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_/PLMB/S_RCA_QUANT_RFO TYPE STANDARD TABLE OF /PLMB/S_RCA_QUANT_RFO,
      WA_/PLMB/S_RCA_QUANT_RFO TYPE /PLMB/S_RCA_QUANT_RFO,
      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: </PLMB/S_RCA_QUANT_RFO> TYPE /PLMB/S_RCA_QUANT_RFO.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PLMB/S_RCA_QUANT_RFO
  INTO TABLE IT_/PLMB/S_RCA_QUANT_RFO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMB/S_RCA_QUANT_RFO
*  INTO TABLE @DATA(IT_/PLMB/S_RCA_QUANT_RFO2).
*--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_/PLMB/S_RCA_QUANT_RFO INDEX 1 INTO DATA(WA_/PLMB/S_RCA_QUANT_RFO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PLMB/S_RCA_QUANT_RFO ASSIGNING </PLMB/S_RCA_QUANT_RFO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMB/S_RCA_QUANT_RFO>-CALC_ID = 1.
</PLMB/S_RCA_QUANT_RFO>-ITEM_GUID = 1.
</PLMB/S_RCA_QUANT_RFO>-ST_ID = 1.
</PLMB/S_RCA_QUANT_RFO>-POSNR = 1.
</PLMB/S_RCA_QUANT_RFO>-POSCOUNT = 1.

ENDLOOP.

LOOP AT IT_/PLMB/S_RCA_QUANT_RFO INTO WA_/PLMB/S_RCA_QUANT_RFO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMB/S_RCA_QUANT_RFO-NUTR_GROUP_ID, sy-vline,
  WA_/PLMB/S_RCA_QUANT_RFO-GROUP_RECN, sy-vline,
  WA_/PLMB/S_RCA_QUANT_RFO-RECNROOT, sy-vline,
  WA_/PLMB/S_RCA_QUANT_RFO-SUBID, sy-vline,
  WA_/PLMB/S_RCA_QUANT_RFO-ROLE, sy-vline,
  WA_/PLMB/S_RCA_QUANT_RFO-SUBRECN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMB/S_RCA_QUANT_RFO 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_/PLMB/S_RCA_QUANT_RFO 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_/PLMB/S_RCA_QUANT_RFO INTO WA_/PLMB/S_RCA_QUANT_RFO.


*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 RCPNZ, internal->external for field ST_ID
CALL FUNCTION 'CONVERSION_EXIT_RCPNZ_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCA_QUANT_RFO-ST_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCA_QUANT_RFO-ST_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RCPNZ, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_RCPNZ_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCA_QUANT_RFO-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCA_QUANT_RFO-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RCPNZ, internal->external for field POSCOUNT
CALL FUNCTION 'CONVERSION_EXIT_RCPNZ_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCA_QUANT_RFO-POSCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCA_QUANT_RFO-POSCOUNT.
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_/PLMB/S_RCA_QUANT_RFO_STR, 
CALC_ID TYPE STRING,
ITEM_GUID TYPE STRING,
ST_ID TYPE STRING,
POSNR TYPE STRING,
POSCOUNT TYPE STRING,
NUTR_GROUP_ID TYPE STRING,
GROUP_RECN TYPE STRING,
RECNROOT TYPE STRING,
SUBID TYPE STRING,
ROLE TYPE STRING,
SUBRECN TYPE STRING,
QUANT_ID TYPE STRING,
COMPTGT_CALC TYPE STRING,
UNIT_CALC TYPE STRING,
PROC_LOSS TYPE STRING,
STOR_LOSS TYPE STRING,
EXCVAL_CALC TYPE STRING,
VALUE_SIGN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMB/S_RCA_QUANT_RFO_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_/PLMB/S_RCA_QUANT_RFO_STR-CALC_ID sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-ITEM_GUID sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-ST_ID sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-POSNR sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-POSCOUNT sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-NUTR_GROUP_ID sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-GROUP_RECN sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-RECNROOT sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-SUBID sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-ROLE sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-SUBRECN sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-QUANT_ID sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-COMPTGT_CALC sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-UNIT_CALC sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-PROC_LOSS sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-STOR_LOSS sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-EXCVAL_CALC sy-vline 
WA_/PLMB/S_RCA_QUANT_RFO_STR-VALUE_SIGN sy-vline      INTO ld_text SEPARATED BY SPACE.

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