ABAP Select data from SAP table RPCKSMA1L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCKSMA1L 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 RPCKSMA1L. 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 RPCKSMA1L 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_RPCKSMA1L TYPE STANDARD TABLE OF RPCKSMA1L,
      WA_RPCKSMA1L TYPE RPCKSMA1L,
      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: <RPCKSMA1L> TYPE RPCKSMA1L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCKSMA1L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCKSMA1L
  INTO TABLE IT_RPCKSMA1L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCKSMA1L
*  INTO TABLE @DATA(IT_RPCKSMA1L2).
*--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_RPCKSMA1L INDEX 1 INTO DATA(WA_RPCKSMA1L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCKSMA1L ASSIGNING <RPCKSMA1L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCKSMA1L>-LOHNB = 1.
<RPCKSMA1L>-GMDNR = 1.
<RPCKSMA1L>-FUPER = 1.
<RPCKSMA1L>-PERNR = 1.
<RPCKSMA1L>-GMDKT = 1.

ENDLOOP.

LOOP AT IT_RPCKSMA1L INTO WA_RPCKSMA1L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCKSMA1L-XBLNR, sy-vline,
  WA_RPCKSMA1L-LOHNB_TXT, sy-vline,
  WA_RPCKSMA1L-GMDNR_TXT, sy-vline,
  WA_RPCKSMA1L-GMPLZ, sy-vline,
  WA_RPCKSMA1L-BUKRS, sy-vline,
  WA_RPCKSMA1L-BUKRS_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCKSMA1L 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_RPCKSMA1L 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_RPCKSMA1L INTO WA_RPCKSMA1L.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RPCKSMA1L_STR, 
LOHNB TYPE STRING,
GMDNR TYPE STRING,
FUPER TYPE STRING,
PERNR TYPE STRING,
GMDKT TYPE STRING,
XBLNR TYPE STRING,
LOHNB_TXT TYPE STRING,
GMDNR_TXT TYPE STRING,
GMPLZ TYPE STRING,
BUKRS TYPE STRING,
BUKRS_TXT TYPE STRING,
WERKS TYPE STRING,
WERKS_TXT TYPE STRING,
BTRTL TYPE STRING,
BTRTL_TXT TYPE STRING,
ABKRS TYPE STRING,
ABKRS_TXT TYPE STRING,
ANSTA TYPE STRING,
ANSTA_TXT TYPE STRING,
LINE0 TYPE STRING,
LINE1 TYPE STRING,
LINE2 TYPE STRING,
LINE3 TYPE STRING,
LINE4 TYPE STRING,
LINE5 TYPE STRING,
FUPPR TYPE STRING,
SNAME TYPE STRING,
ENAME TYPE STRING,
GRNDL TYPE STRING,
PROZS TYPE STRING,
PROZS_OLD TYPE STRING,
BTRPG TYPE STRING,
LIMIT TYPE STRING,
ORT01 TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCKSMA1L_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_RPCKSMA1L_STR-LOHNB sy-vline 
WA_RPCKSMA1L_STR-GMDNR sy-vline 
WA_RPCKSMA1L_STR-FUPER sy-vline 
WA_RPCKSMA1L_STR-PERNR sy-vline 
WA_RPCKSMA1L_STR-GMDKT sy-vline 
WA_RPCKSMA1L_STR-XBLNR sy-vline 
WA_RPCKSMA1L_STR-LOHNB_TXT sy-vline 
WA_RPCKSMA1L_STR-GMDNR_TXT sy-vline 
WA_RPCKSMA1L_STR-GMPLZ sy-vline 
WA_RPCKSMA1L_STR-BUKRS sy-vline 
WA_RPCKSMA1L_STR-BUKRS_TXT sy-vline 
WA_RPCKSMA1L_STR-WERKS sy-vline 
WA_RPCKSMA1L_STR-WERKS_TXT sy-vline 
WA_RPCKSMA1L_STR-BTRTL sy-vline 
WA_RPCKSMA1L_STR-BTRTL_TXT sy-vline 
WA_RPCKSMA1L_STR-ABKRS sy-vline 
WA_RPCKSMA1L_STR-ABKRS_TXT sy-vline 
WA_RPCKSMA1L_STR-ANSTA sy-vline 
WA_RPCKSMA1L_STR-ANSTA_TXT sy-vline 
WA_RPCKSMA1L_STR-LINE0 sy-vline 
WA_RPCKSMA1L_STR-LINE1 sy-vline 
WA_RPCKSMA1L_STR-LINE2 sy-vline 
WA_RPCKSMA1L_STR-LINE3 sy-vline 
WA_RPCKSMA1L_STR-LINE4 sy-vline 
WA_RPCKSMA1L_STR-LINE5 sy-vline 
WA_RPCKSMA1L_STR-FUPPR sy-vline 
WA_RPCKSMA1L_STR-SNAME sy-vline 
WA_RPCKSMA1L_STR-ENAME sy-vline 
WA_RPCKSMA1L_STR-GRNDL sy-vline 
WA_RPCKSMA1L_STR-PROZS sy-vline 
WA_RPCKSMA1L_STR-PROZS_OLD sy-vline 
WA_RPCKSMA1L_STR-BTRPG sy-vline 
WA_RPCKSMA1L_STR-LIMIT sy-vline 
WA_RPCKSMA1L_STR-ORT01 sy-vline 
WA_RPCKSMA1L_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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