ABAP Select data from SAP table P02RPCKTOC1_ALV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P02RPCKTOC1_ALV1 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 P02RPCKTOC1_ALV1. 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 P02RPCKTOC1_ALV1 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_P02RPCKTOC1_ALV1 TYPE STANDARD TABLE OF P02RPCKTOC1_ALV1,
      WA_P02RPCKTOC1_ALV1 TYPE P02RPCKTOC1_ALV1,
      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: <P02RPCKTOC1_ALV1> TYPE P02RPCKTOC1_ALV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P02RPCKTOC1_ALV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P02RPCKTOC1_ALV1
  INTO TABLE IT_P02RPCKTOC1_ALV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P02RPCKTOC1_ALV1
*  INTO TABLE @DATA(IT_P02RPCKTOC1_ALV12).
*--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_P02RPCKTOC1_ALV1 INDEX 1 INTO DATA(WA_P02RPCKTOC1_ALV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P02RPCKTOC1_ALV1 ASSIGNING <P02RPCKTOC1_ALV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P02RPCKTOC1_ALV1>-BUKRS = 1.
<P02RPCKTOC1_ALV1>-PERNR = 1.
<P02RPCKTOC1_ALV1>-NAHVN = 1.
<P02RPCKTOC1_ALV1>-AHVNR = 1.
<P02RPCKTOC1_ALV1>-ENAME = 1.

ENDLOOP.

LOOP AT IT_P02RPCKTOC1_ALV1 INTO WA_P02RPCKTOC1_ALV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P02RPCKTOC1_ALV1-GBDAT, sy-vline,
  WA_P02RPCKTOC1_ALV1-LGART, sy-vline,
  WA_P02RPCKTOC1_ALV1-LGTXT, sy-vline,
  WA_P02RPCKTOC1_ALV1-C3, sy-vline,
  WA_P02RPCKTOC1_ALV1-C2, sy-vline,
  WA_P02RPCKTOC1_ALV1-LGARTSP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P02RPCKTOC1_ALV1 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_P02RPCKTOC1_ALV1 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_P02RPCKTOC1_ALV1 INTO WA_P02RPCKTOC1_ALV1.


*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 AHVN2, internal->external for field NAHVN
CALL FUNCTION 'CONVERSION_EXIT_AHVN2_OUTPUT'
  EXPORTING
    input =                      WA_P02RPCKTOC1_ALV1-NAHVN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P02RPCKTOC1_ALV1-NAHVN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AHVNR, internal->external for field AHVNR
CALL FUNCTION 'CONVERSION_EXIT_AHVNR_OUTPUT'
  EXPORTING
    input =                      WA_P02RPCKTOC1_ALV1-AHVNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P02RPCKTOC1_ALV1-AHVNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P02RPCKTOC1_ALV1-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P02RPCKTOC1_ALV1-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_P02RPCKTOC1_ALV1_STR, 
BUKRS TYPE STRING,
PERNR TYPE STRING,
NAHVN TYPE STRING,
AHVNR TYPE STRING,
ENAME TYPE STRING,
GBDAT TYPE STRING,
LGART TYPE STRING,
LGTXT TYPE STRING,
C3 TYPE STRING,
C2 TYPE STRING,
LGARTSP TYPE STRING,
BETR01 TYPE STRING,
BETR02 TYPE STRING,
BETR03 TYPE STRING,
BETR04 TYPE STRING,
BETR05 TYPE STRING,
BETR06 TYPE STRING,
BETR07 TYPE STRING,
BETR08 TYPE STRING,
BETR09 TYPE STRING,
BETR10 TYPE STRING,
BETR11 TYPE STRING,
BETR12 TYPE STRING,
SUM2 TYPE STRING,
LCOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P02RPCKTOC1_ALV1_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_P02RPCKTOC1_ALV1_STR-BUKRS sy-vline 
WA_P02RPCKTOC1_ALV1_STR-PERNR sy-vline 
WA_P02RPCKTOC1_ALV1_STR-NAHVN sy-vline 
WA_P02RPCKTOC1_ALV1_STR-AHVNR sy-vline 
WA_P02RPCKTOC1_ALV1_STR-ENAME sy-vline 
WA_P02RPCKTOC1_ALV1_STR-GBDAT sy-vline 
WA_P02RPCKTOC1_ALV1_STR-LGART sy-vline 
WA_P02RPCKTOC1_ALV1_STR-LGTXT sy-vline 
WA_P02RPCKTOC1_ALV1_STR-C3 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-C2 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-LGARTSP sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR01 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR02 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR03 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR04 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR05 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR06 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR07 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR08 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR09 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR10 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR11 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-BETR12 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-SUM2 sy-vline 
WA_P02RPCKTOC1_ALV1_STR-LCOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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