ABAP Select data from SAP table RPLM_COMPONENT_DISPLAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPLM_COMPONENT_DISPLAY
*  INTO TABLE @DATA(IT_RPLM_COMPONENT_DISPLAY2).
*--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_RPLM_COMPONENT_DISPLAY INDEX 1 INTO DATA(WA_RPLM_COMPONENT_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPLM_COMPONENT_DISPLAY>-MATNR = 1.
<RPLM_COMPONENT_DISPLAY>-LGORT = 1.
<RPLM_COMPONENT_DISPLAY>-POSTP = 1.
<RPLM_COMPONENT_DISPLAY>-RSNUM = 1.
<RPLM_COMPONENT_DISPLAY>-RSPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPLM_COMPONENT_DISPLAY-XLOEK, sy-vline,
  WA_RPLM_COMPONENT_DISPLAY-KZEAR, sy-vline,
  WA_RPLM_COMPONENT_DISPLAY-WERKS, sy-vline,
  WA_RPLM_COMPONENT_DISPLAY-CHARG, sy-vline,
  WA_RPLM_COMPONENT_DISPLAY-BDTER, sy-vline,
  WA_RPLM_COMPONENT_DISPLAY-DVMENG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPLM_COMPONENT_DISPLAY 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_RPLM_COMPONENT_DISPLAY 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_RPLM_COMPONENT_DISPLAY INTO WA_RPLM_COMPONENT_DISPLAY.


*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 MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RPLM_COMPONENT_DISPLAY-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLM_COMPONENT_DISPLAY-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RPLM_COMPONENT_DISPLAY-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLM_COMPONENT_DISPLAY-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RPLM_COMPONENT_DISPLAY-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLM_COMPONENT_DISPLAY-VORNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEIN1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RPLM_COMPONENT_DISPLAY-MEIN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLM_COMPONENT_DISPLAY-MEIN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RPLM_COMPONENT_DISPLAY-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLM_COMPONENT_DISPLAY-SAKNR.
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_RPLM_COMPONENT_DISPLAY_STR, 
MATNR TYPE STRING,
LGORT TYPE STRING,
POSTP TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
XLOEK TYPE STRING,
KZEAR TYPE STRING,
WERKS TYPE STRING,
CHARG TYPE STRING,
BDTER TYPE STRING,
DVMENG TYPE STRING,
WAERS TYPE STRING,
POSNR TYPE STRING,
POTX1 TYPE STRING,
SCHGT TYPE STRING,
VORNR TYPE STRING,
GPREIS TYPE STRING,
PEINH TYPE STRING,
RGEKZ TYPE STRING,
EKGRP TYPE STRING,
LIFZT TYPE STRING,
BDZTP TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
LIFNR TYPE STRING,
INFNR TYPE STRING,
AFNAM TYPE STRING,
MATXT TYPE STRING,
BANFNR TYPE STRING,
BANFPO TYPE STRING,
MENGE TYPE STRING,
EINHEIT TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
DENMNG TYPE STRING,
AUDISP TYPE STRING,
SOBKZ_D TYPE STRING,
MEIN1 TYPE STRING,
PLIFZ TYPE STRING,
WEMNG_CMP TYPE STRING,
READ_ONLY TYPE STRING,
READ_TEXT TYPE STRING,
READ_VORNR TYPE STRING,
READ_WERKS TYPE STRING,
READ_STORE TYPE STRING,
READ_ITEMC TYPE STRING,
READ_GEN1 TYPE STRING,
READ_GEN2 TYPE STRING,
SAKNR TYPE STRING,
MATKL TYPE STRING,
EKORG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPLM_COMPONENT_DISPLAY_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_RPLM_COMPONENT_DISPLAY_STR-MATNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-LGORT sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-POSTP sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-RSNUM sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-RSPOS sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-XLOEK sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-KZEAR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-WERKS sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-CHARG sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-BDTER sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-DVMENG sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-WAERS sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-POSNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-POTX1 sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-SCHGT sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-VORNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-GPREIS sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-PEINH sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-RGEKZ sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-EKGRP sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-LIFZT sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-BDZTP sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-WEMPF sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-ABLAD sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-LIFNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-INFNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-AFNAM sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-MATXT sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-BANFNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-BANFPO sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-MENGE sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-EINHEIT sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-KONNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-KTPNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-DENMNG sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-AUDISP sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-SOBKZ_D sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-MEIN1 sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-PLIFZ sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-WEMNG_CMP sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_ONLY sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_TEXT sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_VORNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_WERKS sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_STORE sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_ITEMC sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_GEN1 sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-READ_GEN2 sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-SAKNR sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-MATKL sy-vline 
WA_RPLM_COMPONENT_DISPLAY_STR-EKORG sy-vline      INTO ld_text SEPARATED BY SPACE.

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