ABAP Select data from SAP table PPELUI_COMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPELUI_COMP
*  INTO TABLE @DATA(IT_PPELUI_COMP2).
*--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_PPELUI_COMP INDEX 1 INTO DATA(WA_PPELUI_COMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPELUI_COMP>-ROW_ID = 1.
<PPELUI_COMP>-PVGUID = 1.
<PPELUI_COMP>-PVNAME = 1.
<PPELUI_COMP>-AENNR = 1.
<PPELUI_COMP>-DATE_FROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPELUI_COMP-PRGUID, sy-vline,
  WA_PPELUI_COMP-CMPEXTCMP, sy-vline,
  WA_PPELUI_COMP-QUANT, sy-vline,
  WA_PPELUI_COMP-QUANT_FIX, sy-vline,
  WA_PPELUI_COMP-QUNIT, sy-vline,
  WA_PPELUI_COMP-MATCO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPELUI_COMP 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_PPELUI_COMP 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_PPELUI_COMP INTO WA_PPELUI_COMP.


*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 PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPELUI_COMP-PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPELUI_COMP-PVNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPELUI_COMP-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPELUI_COMP-AENNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field IO_OFFSET_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPELUI_COMP-IO_OFFSET_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPELUI_COMP-IO_OFFSET_UNIT.
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_PPELUI_COMP_STR, 
ROW_ID TYPE STRING,
PVGUID TYPE STRING,
PVNAME TYPE STRING,
AENNR TYPE STRING,
DATE_FROM TYPE STRING,
PRGUID TYPE STRING,
CMPEXTCMP TYPE STRING,
QUANT TYPE STRING,
QUANT_FIX TYPE STRING,
QUNIT TYPE STRING,
MATCO TYPE STRING,
IO_OFFSET TYPE STRING,
IO_OFFSET_UNIT TYPE STRING,
PRVBEEXTCMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPELUI_COMP_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_PPELUI_COMP_STR-ROW_ID sy-vline 
WA_PPELUI_COMP_STR-PVGUID sy-vline 
WA_PPELUI_COMP_STR-PVNAME sy-vline 
WA_PPELUI_COMP_STR-AENNR sy-vline 
WA_PPELUI_COMP_STR-DATE_FROM sy-vline 
WA_PPELUI_COMP_STR-PRGUID sy-vline 
WA_PPELUI_COMP_STR-CMPEXTCMP sy-vline 
WA_PPELUI_COMP_STR-QUANT sy-vline 
WA_PPELUI_COMP_STR-QUANT_FIX sy-vline 
WA_PPELUI_COMP_STR-QUNIT sy-vline 
WA_PPELUI_COMP_STR-MATCO sy-vline 
WA_PPELUI_COMP_STR-IO_OFFSET sy-vline 
WA_PPELUI_COMP_STR-IO_OFFSET_UNIT sy-vline 
WA_PPELUI_COMP_STR-PRVBEEXTCMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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