ABAP Select data from SAP table PIR_V_RD_SUM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIR_V_RD_SUM
*  INTO TABLE @DATA(IT_PIR_V_RD_SUM2).
*--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_PIR_V_RD_SUM INDEX 1 INTO DATA(WA_PIR_V_RD_SUM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIR_V_RD_SUM>-MANDT = 1.
<PIR_V_RD_SUM>-UNAME = 1.
<PIR_V_RD_SUM>-MATNR = 1.
<PIR_V_RD_SUM>-WERKS = 1.
<PIR_V_RD_SUM>-BERID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIR_V_RD_SUM-BEDAE, sy-vline,
  WA_PIR_V_RD_SUM-VERSB, sy-vline,
  WA_PIR_V_RD_SUM-PER_SDAT, sy-vline,
  WA_PIR_V_RD_SUM-START_DATE_FOR_MAX, sy-vline,
  WA_PIR_V_RD_SUM-FORECAST_IS_SUPERFLUOUS, sy-vline,
  WA_PIR_V_RD_SUM-FORECAST_IS_NEEDED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIR_V_RD_SUM 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_PIR_V_RD_SUM 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_PIR_V_RD_SUM INTO WA_PIR_V_RD_SUM.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PIR_V_RD_SUM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIR_V_RD_SUM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ITEM_MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIR_V_RD_SUM-ITEM_MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIR_V_RD_SUM-ITEM_MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MARA_MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIR_V_RD_SUM-MARA_MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIR_V_RD_SUM-MARA_MEINS.
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_PIR_V_RD_SUM_STR, 
MANDT TYPE STRING,
UNAME TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BERID TYPE STRING,
BEDAE TYPE STRING,
VERSB TYPE STRING,
PER_SDAT TYPE STRING,
START_DATE_FOR_MAX TYPE STRING,
FORECAST_IS_SUPERFLUOUS TYPE STRING,
FORECAST_IS_NEEDED TYPE STRING,
BDZEI TYPE STRING,
PERKZ_MASTER TYPE STRING,
PERKZ_ITEM TYPE STRING,
PER_EDAT TYPE STRING,
PERIOD_IS_INVALID TYPE STRING,
LOEVR TYPE STRING,
ACC_PAST TYPE STRING,
DRAFT_QTY TYPE STRING,
PLAN_QTY TYPE STRING,
WITHDR_QTY TYPE STRING,
OPEN_QTY TYPE STRING,
ITEM_MEINS TYPE STRING,
PDATU TYPE STRING,
MARC_LVORM TYPE STRING,
MARA_LVORM TYPE STRING,
MARA_MEINS TYPE STRING,
MARC_DPBED TYPE STRING,
MARA_DPBED TYPE STRING,
LASTCHANGE TYPE STRING,
LAST_CHANGE_DATS TYPE STRING,
AENAM TYPE STRING,
DISPO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIR_V_RD_SUM_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_PIR_V_RD_SUM_STR-MANDT sy-vline 
WA_PIR_V_RD_SUM_STR-UNAME sy-vline 
WA_PIR_V_RD_SUM_STR-MATNR sy-vline 
WA_PIR_V_RD_SUM_STR-WERKS sy-vline 
WA_PIR_V_RD_SUM_STR-BERID sy-vline 
WA_PIR_V_RD_SUM_STR-BEDAE sy-vline 
WA_PIR_V_RD_SUM_STR-VERSB sy-vline 
WA_PIR_V_RD_SUM_STR-PER_SDAT sy-vline 
WA_PIR_V_RD_SUM_STR-START_DATE_FOR_MAX sy-vline 
WA_PIR_V_RD_SUM_STR-FORECAST_IS_SUPERFLUOUS sy-vline 
WA_PIR_V_RD_SUM_STR-FORECAST_IS_NEEDED sy-vline 
WA_PIR_V_RD_SUM_STR-BDZEI sy-vline 
WA_PIR_V_RD_SUM_STR-PERKZ_MASTER sy-vline 
WA_PIR_V_RD_SUM_STR-PERKZ_ITEM sy-vline 
WA_PIR_V_RD_SUM_STR-PER_EDAT sy-vline 
WA_PIR_V_RD_SUM_STR-PERIOD_IS_INVALID sy-vline 
WA_PIR_V_RD_SUM_STR-LOEVR sy-vline 
WA_PIR_V_RD_SUM_STR-ACC_PAST sy-vline 
WA_PIR_V_RD_SUM_STR-DRAFT_QTY sy-vline 
WA_PIR_V_RD_SUM_STR-PLAN_QTY sy-vline 
WA_PIR_V_RD_SUM_STR-WITHDR_QTY sy-vline 
WA_PIR_V_RD_SUM_STR-OPEN_QTY sy-vline 
WA_PIR_V_RD_SUM_STR-ITEM_MEINS sy-vline 
WA_PIR_V_RD_SUM_STR-PDATU sy-vline 
WA_PIR_V_RD_SUM_STR-MARC_LVORM sy-vline 
WA_PIR_V_RD_SUM_STR-MARA_LVORM sy-vline 
WA_PIR_V_RD_SUM_STR-MARA_MEINS sy-vline 
WA_PIR_V_RD_SUM_STR-MARC_DPBED sy-vline 
WA_PIR_V_RD_SUM_STR-MARA_DPBED sy-vline 
WA_PIR_V_RD_SUM_STR-LASTCHANGE sy-vline 
WA_PIR_V_RD_SUM_STR-LAST_CHANGE_DATS sy-vline 
WA_PIR_V_RD_SUM_STR-AENAM sy-vline 
WA_PIR_V_RD_SUM_STR-DISPO sy-vline      INTO ld_text SEPARATED BY SPACE.

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