ABAP Select data from SAP table PTRV_COMP_PDF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRV_COMP_PDF
*  INTO TABLE @DATA(IT_PTRV_COMP_PDF2).
*--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_PTRV_COMP_PDF INDEX 1 INTO DATA(WA_PTRV_COMP_PDF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTRV_COMP_PDF>-MANDT = 1.
<PTRV_COMP_PDF>-PERNR = 1.
<PTRV_COMP_PDF>-REINR = 1.
<PTRV_COMP_PDF>-PERIO = 1.
<PTRV_COMP_PDF>-PDVRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRV_COMP_PDF-COMP_TYP, sy-vline,
  WA_PTRV_COMP_PDF-COST_BAHN, sy-vline,
  WA_PTRV_COMP_PDF-COST_ZUSCHLAG, sy-vline,
  WA_PTRV_COMP_PDF-COST_NAHV, sy-vline,
  WA_PTRV_COMP_PDF-COST_SONSTV, sy-vline,
  WA_PTRV_COMP_PDF-NOTWEND_KM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRV_COMP_PDF 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_PTRV_COMP_PDF 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_PTRV_COMP_PDF INTO WA_PTRV_COMP_PDF.


*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_PTRV_COMP_PDF_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
REINR TYPE STRING,
PERIO TYPE STRING,
PDVRS TYPE STRING,
COMP_TYP TYPE STRING,
COST_BAHN TYPE STRING,
COST_ZUSCHLAG TYPE STRING,
COST_NAHV TYPE STRING,
COST_SONSTV TYPE STRING,
NOTWEND_KM TYPE STRING,
ERST_KM_FA TYPE STRING,
COST_WEG TYPE STRING,
COST_TAGEGELD TYPE STRING,
COST_UNTERKUNFT TYPE STRING,
COST_GESAMT TYPE STRING,
COST_DIFF TYPE STRING,
WAERS TYPE STRING,
DATV1 TYPE STRING,
DATB1 TYPE STRING,
UHRV1 TYPE STRING,
UHRB1 TYPE STRING,
PAUSCHALEN TYPE STRING,
COST_WEG_REAL TYPE STRING,
COST_FAHRT_REAL TYPE STRING,
COST_TAG_REAL TYPE STRING,
COST_UNTERK_REAL TYPE STRING,
COST_GESAMT_REAL TYPE STRING,
COMP_BELNR TYPE STRING,
FIK_KM_DA TYPE STRING,
ERST_KM_DA TYPE STRING,
FIK_KM_DR TYPE STRING,
ERST_KM_DR TYPE STRING,
ERST_TRG_UEGELD TYPE STRING,
ERST_TTG_UEGELD TYPE STRING,
ERST_DA_TG TYPE STRING,
ERST_DA_UEGELD TYPE STRING,
ERST_DR_TG TYPE STRING,
ERST_TRG_TG TYPE STRING,
ERST_TTG_TG TYPE STRING,
PUBLIC_TRANSP_REDUC TYPE STRING,
COST_NON_PUBL_TRANSPORT TYPE STRING,
COST_ERSTATT TYPE STRING,
COST_MAX TYPE STRING,
COST_DIFF_MAX TYPE STRING,
COMP_BELNR_MAX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRV_COMP_PDF_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_PTRV_COMP_PDF_STR-MANDT sy-vline 
WA_PTRV_COMP_PDF_STR-PERNR sy-vline 
WA_PTRV_COMP_PDF_STR-REINR sy-vline 
WA_PTRV_COMP_PDF_STR-PERIO sy-vline 
WA_PTRV_COMP_PDF_STR-PDVRS sy-vline 
WA_PTRV_COMP_PDF_STR-COMP_TYP sy-vline 
WA_PTRV_COMP_PDF_STR-COST_BAHN sy-vline 
WA_PTRV_COMP_PDF_STR-COST_ZUSCHLAG sy-vline 
WA_PTRV_COMP_PDF_STR-COST_NAHV sy-vline 
WA_PTRV_COMP_PDF_STR-COST_SONSTV sy-vline 
WA_PTRV_COMP_PDF_STR-NOTWEND_KM sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_KM_FA sy-vline 
WA_PTRV_COMP_PDF_STR-COST_WEG sy-vline 
WA_PTRV_COMP_PDF_STR-COST_TAGEGELD sy-vline 
WA_PTRV_COMP_PDF_STR-COST_UNTERKUNFT sy-vline 
WA_PTRV_COMP_PDF_STR-COST_GESAMT sy-vline 
WA_PTRV_COMP_PDF_STR-COST_DIFF sy-vline 
WA_PTRV_COMP_PDF_STR-WAERS sy-vline 
WA_PTRV_COMP_PDF_STR-DATV1 sy-vline 
WA_PTRV_COMP_PDF_STR-DATB1 sy-vline 
WA_PTRV_COMP_PDF_STR-UHRV1 sy-vline 
WA_PTRV_COMP_PDF_STR-UHRB1 sy-vline 
WA_PTRV_COMP_PDF_STR-PAUSCHALEN sy-vline 
WA_PTRV_COMP_PDF_STR-COST_WEG_REAL sy-vline 
WA_PTRV_COMP_PDF_STR-COST_FAHRT_REAL sy-vline 
WA_PTRV_COMP_PDF_STR-COST_TAG_REAL sy-vline 
WA_PTRV_COMP_PDF_STR-COST_UNTERK_REAL sy-vline 
WA_PTRV_COMP_PDF_STR-COST_GESAMT_REAL sy-vline 
WA_PTRV_COMP_PDF_STR-COMP_BELNR sy-vline 
WA_PTRV_COMP_PDF_STR-FIK_KM_DA sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_KM_DA sy-vline 
WA_PTRV_COMP_PDF_STR-FIK_KM_DR sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_KM_DR sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_TRG_UEGELD sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_TTG_UEGELD sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_DA_TG sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_DA_UEGELD sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_DR_TG sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_TRG_TG sy-vline 
WA_PTRV_COMP_PDF_STR-ERST_TTG_TG sy-vline 
WA_PTRV_COMP_PDF_STR-PUBLIC_TRANSP_REDUC sy-vline 
WA_PTRV_COMP_PDF_STR-COST_NON_PUBL_TRANSPORT sy-vline 
WA_PTRV_COMP_PDF_STR-COST_ERSTATT sy-vline 
WA_PTRV_COMP_PDF_STR-COST_MAX sy-vline 
WA_PTRV_COMP_PDF_STR-COST_DIFF_MAX sy-vline 
WA_PTRV_COMP_PDF_STR-COMP_BELNR_MAX sy-vline      INTO ld_text SEPARATED BY SPACE.

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