ABAP Select data from SAP table RPLSVMA0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPLSVMA0 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 RPLSVMA0. 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 RPLSVMA0 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_RPLSVMA0 TYPE STANDARD TABLE OF RPLSVMA0,
      WA_RPLSVMA0 TYPE RPLSVMA0,
      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: <RPLSVMA0> TYPE RPLSVMA0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPLSVMA0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPLSVMA0
  INTO TABLE IT_RPLSVMA0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPLSVMA0
*  INTO TABLE @DATA(IT_RPLSVMA02).
*--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_RPLSVMA0 INDEX 1 INTO DATA(WA_RPLSVMA02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPLSVMA0 ASSIGNING <RPLSVMA0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPLSVMA0>-UPDATE = 1.
<RPLSVMA0>-MLDBIS = 1.
<RPLSVMA0>-AUSDAT = 1.
<RPLSVMA0>-AUSSTE = 1.
<RPLSVMA0>-PERNR = 1.

ENDLOOP.

LOOP AT IT_RPLSVMA0 INTO WA_RPLSVMA0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPLSVMA0-INFTY, sy-vline,
  WA_RPLSVMA0-SUBTY, sy-vline,
  WA_RPLSVMA0-ITFELD, sy-vline,
  WA_RPLSVMA0-BEGDA, sy-vline,
  WA_RPLSVMA0-SVMLDG, sy-vline,
  WA_RPLSVMA0-SVAEND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPLSVMA0 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_RPLSVMA0 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_RPLSVMA0 INTO WA_RPLSVMA0.


*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_RPLSVMA0_STR, 
UPDATE TYPE STRING,
MLDBIS TYPE STRING,
AUSDAT TYPE STRING,
AUSSTE TYPE STRING,
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ITFELD TYPE STRING,
BEGDA TYPE STRING,
SVMLDG TYPE STRING,
SVAEND TYPE STRING,
VMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPLSVMA0_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_RPLSVMA0_STR-UPDATE sy-vline 
WA_RPLSVMA0_STR-MLDBIS sy-vline 
WA_RPLSVMA0_STR-AUSDAT sy-vline 
WA_RPLSVMA0_STR-AUSSTE sy-vline 
WA_RPLSVMA0_STR-PERNR sy-vline 
WA_RPLSVMA0_STR-INFTY sy-vline 
WA_RPLSVMA0_STR-SUBTY sy-vline 
WA_RPLSVMA0_STR-ITFELD sy-vline 
WA_RPLSVMA0_STR-BEGDA sy-vline 
WA_RPLSVMA0_STR-SVMLDG sy-vline 
WA_RPLSVMA0_STR-SVAEND sy-vline 
WA_RPLSVMA0_STR-VMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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