ABAP Select data from SAP table PPEUIARCH_SELECT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPEUIARCH_SELECT
*  INTO TABLE @DATA(IT_PPEUIARCH_SELECT2).
*--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_PPEUIARCH_SELECT INDEX 1 INTO DATA(WA_PPEUIARCH_SELECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPEUIARCH_SELECT>-SELECTION = 1.
<PPEUIARCH_SELECT>-INFOTEXT = 1.
<PPEUIARCH_SELECT>-PNGUID = 1.
<PPEUIARCH_SELECT>-PNAME = 1.
<PPEUIARCH_SELECT>-SHORTTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPEUIARCH_SELECT-CLASS, sy-vline,
  WA_PPEUIARCH_SELECT-CLASSTYPE, sy-vline,
  WA_PPEUIARCH_SELECT-CREADAT, sy-vline,
  WA_PPEUIARCH_SELECT-CREABY, sy-vline,
  WA_PPEUIARCH_SELECT-CHNGDAT, sy-vline,
  WA_PPEUIARCH_SELECT-CHNGBY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPEUIARCH_SELECT 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_PPEUIARCH_SELECT 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_PPEUIARCH_SELECT INTO WA_PPEUIARCH_SELECT.


*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 ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPEUIARCH_SELECT-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPEUIARCH_SELECT-LOGSYS.
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_PPEUIARCH_SELECT_STR, 
SELECTION TYPE STRING,
INFOTEXT TYPE STRING,
PNGUID TYPE STRING,
PNAME TYPE STRING,
SHORTTEXT TYPE STRING,
CLASS TYPE STRING,
CLASSTYPE TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
ARCHIVED_BY TYPE STRING,
ARCHIVED_ON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPEUIARCH_SELECT_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_PPEUIARCH_SELECT_STR-SELECTION sy-vline 
WA_PPEUIARCH_SELECT_STR-INFOTEXT sy-vline 
WA_PPEUIARCH_SELECT_STR-PNGUID sy-vline 
WA_PPEUIARCH_SELECT_STR-PNAME sy-vline 
WA_PPEUIARCH_SELECT_STR-SHORTTEXT sy-vline 
WA_PPEUIARCH_SELECT_STR-CLASS sy-vline 
WA_PPEUIARCH_SELECT_STR-CLASSTYPE sy-vline 
WA_PPEUIARCH_SELECT_STR-CREADAT sy-vline 
WA_PPEUIARCH_SELECT_STR-CREABY sy-vline 
WA_PPEUIARCH_SELECT_STR-CHNGDAT sy-vline 
WA_PPEUIARCH_SELECT_STR-CHNGBY sy-vline 
WA_PPEUIARCH_SELECT_STR-LOGSYS sy-vline 
WA_PPEUIARCH_SELECT_STR-ARCHIVED_BY sy-vline 
WA_PPEUIARCH_SELECT_STR-ARCHIVED_ON sy-vline      INTO ld_text SEPARATED BY SPACE.

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