ABAP Select data from SAP table RPLASMC0_L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPLASMC0_L 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 RPLASMC0_L. 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 RPLASMC0_L 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_RPLASMC0_L TYPE STANDARD TABLE OF RPLASMC0_L,
      WA_RPLASMC0_L TYPE RPLASMC0_L,
      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: <RPLASMC0_L> TYPE RPLASMC0_L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPLASMC0_L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPLASMC0_L
  INTO TABLE IT_RPLASMC0_L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPLASMC0_L
*  INTO TABLE @DATA(IT_RPLASMC0_L2).
*--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_RPLASMC0_L INDEX 1 INTO DATA(WA_RPLASMC0_L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPLASMC0_L ASSIGNING <RPLASMC0_L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPLASMC0_L>-FIRMATXT = 1.
<RPLASMC0_L>-ABREH = 1.
<RPLASMC0_L>-ASMCODE = 1.
<RPLASMC0_L>-GESCHTXT = 1.
<RPLASMC0_L>-HBTXT = 1.

ENDLOOP.

LOOP AT IT_RPLASMC0_L INTO WA_RPLASMC0_L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPLASMC0_L-TBTXT, sy-vline,
  WA_RPLASMC0_L-TPTXT, sy-vline,
  WA_RPLASMC0_L-BERKA, sy-vline,
  WA_RPLASMC0_L-KATTXT, sy-vline,
  WA_RPLASMC0_L-ANZ4, sy-vline,
  WA_RPLASMC0_L-LOHN4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPLASMC0_L 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_RPLASMC0_L 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_RPLASMC0_L INTO WA_RPLASMC0_L.


*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 ASMCD, internal->external for field ASMCODE
CALL FUNCTION 'CONVERSION_EXIT_ASMCD_OUTPUT'
  EXPORTING
    input =                      WA_RPLASMC0_L-ASMCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLASMC0_L-ASMCODE.
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_RPLASMC0_L_STR, 
FIRMATXT TYPE STRING,
ABREH TYPE STRING,
ASMCODE TYPE STRING,
GESCHTXT TYPE STRING,
HBTXT TYPE STRING,
TBTXT TYPE STRING,
TPTXT TYPE STRING,
BERKA TYPE STRING,
KATTXT TYPE STRING,
ANZ4 TYPE STRING,
LOHN4 TYPE STRING,
ANZ3 TYPE STRING,
LOHN3 TYPE STRING,
ANZ2 TYPE STRING,
LOHN2 TYPE STRING,
ANZ1 TYPE STRING,
LOHN1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPLASMC0_L_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_RPLASMC0_L_STR-FIRMATXT sy-vline 
WA_RPLASMC0_L_STR-ABREH sy-vline 
WA_RPLASMC0_L_STR-ASMCODE sy-vline 
WA_RPLASMC0_L_STR-GESCHTXT sy-vline 
WA_RPLASMC0_L_STR-HBTXT sy-vline 
WA_RPLASMC0_L_STR-TBTXT sy-vline 
WA_RPLASMC0_L_STR-TPTXT sy-vline 
WA_RPLASMC0_L_STR-BERKA sy-vline 
WA_RPLASMC0_L_STR-KATTXT sy-vline 
WA_RPLASMC0_L_STR-ANZ4 sy-vline 
WA_RPLASMC0_L_STR-LOHN4 sy-vline 
WA_RPLASMC0_L_STR-ANZ3 sy-vline 
WA_RPLASMC0_L_STR-LOHN3 sy-vline 
WA_RPLASMC0_L_STR-ANZ2 sy-vline 
WA_RPLASMC0_L_STR-LOHN2 sy-vline 
WA_RPLASMC0_L_STR-ANZ1 sy-vline 
WA_RPLASMC0_L_STR-LOHN1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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