ABAP Select data from SAP table RPLSVCD0_ALV_MAIN into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPLSVCD0_ALV_MAIN 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 RPLSVCD0_ALV_MAIN. 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 RPLSVCD0_ALV_MAIN 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_RPLSVCD0_ALV_MAIN TYPE STANDARD TABLE OF RPLSVCD0_ALV_MAIN,
      WA_RPLSVCD0_ALV_MAIN TYPE RPLSVCD0_ALV_MAIN,
      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: <RPLSVCD0_ALV_MAIN> TYPE RPLSVCD0_ALV_MAIN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPLSVCD0_ALV_MAIN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPLSVCD0_ALV_MAIN
  INTO TABLE IT_RPLSVCD0_ALV_MAIN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPLSVCD0_ALV_MAIN
*  INTO TABLE @DATA(IT_RPLSVCD0_ALV_MAIN2).
*--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_RPLSVCD0_ALV_MAIN INDEX 1 INTO DATA(WA_RPLSVCD0_ALV_MAIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPLSVCD0_ALV_MAIN ASSIGNING <RPLSVCD0_ALV_MAIN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPLSVCD0_ALV_MAIN>-PERSB = 1.
<RPLSVCD0_ALV_MAIN>-PERSTB = 1.
<RPLSVCD0_ALV_MAIN>-PBNAM = 1.
<RPLSVCD0_ALV_MAIN>-PTNAM = 1.
<RPLSVCD0_ALV_MAIN>-ZSTNR = 1.

ENDLOOP.

LOOP AT IT_RPLSVCD0_ALV_MAIN INTO WA_RPLSVCD0_ALV_MAIN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPLSVCD0_ALV_MAIN-KVSCH, sy-vline,
  WA_RPLSVCD0_ALV_MAIN-KVGES, sy-vline,
  WA_RPLSVCD0_ALV_MAIN-TXT02, sy-vline,
  WA_RPLSVCD0_ALV_MAIN-TXT03, sy-vline,
  WA_RPLSVCD0_ALV_MAIN-BBNRKK, sy-vline,
  WA_RPLSVCD0_ALV_MAIN-PERNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPLSVCD0_ALV_MAIN 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_RPLSVCD0_ALV_MAIN 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_RPLSVCD0_ALV_MAIN INTO WA_RPLSVCD0_ALV_MAIN.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_RPLSVCD0_ALV_MAIN-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLSVCD0_ALV_MAIN-GBDAT.
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_RPLSVCD0_ALV_MAIN_STR, 
PERSB TYPE STRING,
PERSTB TYPE STRING,
PBNAM TYPE STRING,
PTNAM TYPE STRING,
ZSTNR TYPE STRING,
KVSCH TYPE STRING,
KVGES TYPE STRING,
TXT02 TYPE STRING,
TXT03 TYPE STRING,
BBNRKK TYPE STRING,
PERNR TYPE STRING,
GRUND TYPE STRING,
GDTXT TYPE STRING,
DATUM TYPE STRING,
LFD TYPE STRING,
KAP TYPE STRING,
WHRG TYPE STRING,
KENNZST TYPE STRING,
NAME TYPE STRING,
MITNR TYPE STRING,
STRAS TYPE STRING,
PLORT TYPE STRING,
GBDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPLSVCD0_ALV_MAIN_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_RPLSVCD0_ALV_MAIN_STR-PERSB sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-PERSTB sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-PBNAM sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-PTNAM sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-ZSTNR sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-KVSCH sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-KVGES sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-TXT02 sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-TXT03 sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-BBNRKK sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-PERNR sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-GRUND sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-GDTXT sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-DATUM sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-LFD sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-KAP sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-WHRG sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-KENNZST sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-NAME sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-MITNR sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-STRAS sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-PLORT sy-vline 
WA_RPLSVCD0_ALV_MAIN_STR-GBDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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