ABAP Select data from SAP table RPLRZBD0_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPLRZBD0_ALV 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 RPLRZBD0_ALV. 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 RPLRZBD0_ALV 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_RPLRZBD0_ALV TYPE STANDARD TABLE OF RPLRZBD0_ALV,
      WA_RPLRZBD0_ALV TYPE RPLRZBD0_ALV,
      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: <RPLRZBD0_ALV> TYPE RPLRZBD0_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPLRZBD0_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPLRZBD0_ALV
  INTO TABLE IT_RPLRZBD0_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPLRZBD0_ALV
*  INTO TABLE @DATA(IT_RPLRZBD0_ALV2).
*--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_RPLRZBD0_ALV INDEX 1 INTO DATA(WA_RPLRZBD0_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPLRZBD0_ALV ASSIGNING <RPLRZBD0_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPLRZBD0_ALV>-PERNR = 1.
<RPLRZBD0_ALV>-SUBTY = 1.
<RPLRZBD0_ALV>-OBJPS = 1.
<RPLRZBD0_ALV>-BEGDAC = 1.
<RPLRZBD0_ALV>-ENDDAC = 1.

ENDLOOP.

LOOP AT IT_RPLRZBD0_ALV INTO WA_RPLRZBD0_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPLRZBD0_ALV-ANFRA, sy-vline,
  WA_RPLRZBD0_ALV-GRDAC, sy-vline,
  WA_RPLRZBD0_ALV-DATEXC, sy-vline,
  WA_RPLRZBD0_ALV-KOPFS, sy-vline,
  WA_RPLRZBD0_ALV-AMKEZ, sy-vline,
  WA_RPLRZBD0_ALV-AMAKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPLRZBD0_ALV 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_RPLRZBD0_ALV 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_RPLRZBD0_ALV INTO WA_RPLRZBD0_ALV.


*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_RPLRZBD0_ALV_STR, 
PERNR TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
BEGDAC TYPE STRING,
ENDDAC TYPE STRING,
ANFRA TYPE STRING,
GRDAC TYPE STRING,
DATEXC TYPE STRING,
KOPFS TYPE STRING,
AMKEZ TYPE STRING,
AMAKZ TYPE STRING,
PABNR TYPE STRING,
VSNUM TYPE STRING,
PSTLZ TYPE STRING,
UPD TYPE STRING,
EDSTZ TYPE STRING,
MMNULL TYPE STRING,
RESERVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPLRZBD0_ALV_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_RPLRZBD0_ALV_STR-PERNR sy-vline 
WA_RPLRZBD0_ALV_STR-SUBTY sy-vline 
WA_RPLRZBD0_ALV_STR-OBJPS sy-vline 
WA_RPLRZBD0_ALV_STR-BEGDAC sy-vline 
WA_RPLRZBD0_ALV_STR-ENDDAC sy-vline 
WA_RPLRZBD0_ALV_STR-ANFRA sy-vline 
WA_RPLRZBD0_ALV_STR-GRDAC sy-vline 
WA_RPLRZBD0_ALV_STR-DATEXC sy-vline 
WA_RPLRZBD0_ALV_STR-KOPFS sy-vline 
WA_RPLRZBD0_ALV_STR-AMKEZ sy-vline 
WA_RPLRZBD0_ALV_STR-AMAKZ sy-vline 
WA_RPLRZBD0_ALV_STR-PABNR sy-vline 
WA_RPLRZBD0_ALV_STR-VSNUM sy-vline 
WA_RPLRZBD0_ALV_STR-PSTLZ sy-vline 
WA_RPLRZBD0_ALV_STR-UPD sy-vline 
WA_RPLRZBD0_ALV_STR-EDSTZ sy-vline 
WA_RPLRZBD0_ALV_STR-MMNULL sy-vline 
WA_RPLRZBD0_ALV_STR-RESERVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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