ABAP Select data from SAP table PC01_DSE_S_FRAGEN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC01_DSE_S_FRAGEN 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 PC01_DSE_S_FRAGEN. 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 PC01_DSE_S_FRAGEN 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_PC01_DSE_S_FRAGEN TYPE STANDARD TABLE OF PC01_DSE_S_FRAGEN,
      WA_PC01_DSE_S_FRAGEN TYPE PC01_DSE_S_FRAGEN,
      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: <PC01_DSE_S_FRAGEN> TYPE PC01_DSE_S_FRAGEN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC01_DSE_S_FRAGEN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC01_DSE_S_FRAGEN
  INTO TABLE IT_PC01_DSE_S_FRAGEN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC01_DSE_S_FRAGEN
*  INTO TABLE @DATA(IT_PC01_DSE_S_FRAGEN2).
*--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_PC01_DSE_S_FRAGEN INDEX 1 INTO DATA(WA_PC01_DSE_S_FRAGEN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC01_DSE_S_FRAGEN ASSIGNING <PC01_DSE_S_FRAGEN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC01_DSE_S_FRAGEN>-ANEFJ = 1.
<PC01_DSE_S_FRAGEN>-ANEFN = 1.
<PC01_DSE_S_FRAGEN>-VABTJ = 1.
<PC01_DSE_S_FRAGEN>-VABTN = 1.
<PC01_DSE_S_FRAGEN>-VOPFJ = 1.

ENDLOOP.

LOOP AT IT_PC01_DSE_S_FRAGEN INTO WA_PC01_DSE_S_FRAGEN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC01_DSE_S_FRAGEN-VOPFN, sy-vline,
  WA_PC01_DSE_S_FRAGEN-BANKJ, sy-vline,
  WA_PC01_DSE_S_FRAGEN-BANKN, sy-vline,
  WA_PC01_DSE_S_FRAGEN-ANLAJ, sy-vline,
  WA_PC01_DSE_S_FRAGEN-ANLAN, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_PC01_DSE_S_FRAGEN 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_PC01_DSE_S_FRAGEN 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_PC01_DSE_S_FRAGEN INTO WA_PC01_DSE_S_FRAGEN.


*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_PC01_DSE_S_FRAGEN_STR, 
ANEFJ TYPE STRING,
ANEFN TYPE STRING,
VABTJ TYPE STRING,
VABTN TYPE STRING,
VOPFJ TYPE STRING,
VOPFN TYPE STRING,
BANKJ TYPE STRING,
BANKN TYPE STRING,
ANLAJ TYPE STRING,
ANLAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC01_DSE_S_FRAGEN_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_PC01_DSE_S_FRAGEN_STR-ANEFJ sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-ANEFN sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-VABTJ sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-VABTN sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-VOPFJ sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-VOPFN sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-BANKJ sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-BANKN sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-ANLAJ sy-vline 
WA_PC01_DSE_S_FRAGEN_STR-ANLAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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