ABAP Select data from SAP table P08P1_ABS_MARK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P08P1_ABS_MARK 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 P08P1_ABS_MARK. 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 P08P1_ABS_MARK 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_P08P1_ABS_MARK TYPE STANDARD TABLE OF P08P1_ABS_MARK,
      WA_P08P1_ABS_MARK TYPE P08P1_ABS_MARK,
      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: <P08P1_ABS_MARK> TYPE P08P1_ABS_MARK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P08P1_ABS_MARK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P08P1_ABS_MARK
  INTO TABLE IT_P08P1_ABS_MARK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P08P1_ABS_MARK
*  INTO TABLE @DATA(IT_P08P1_ABS_MARK2).
*--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_P08P1_ABS_MARK INDEX 1 INTO DATA(WA_P08P1_ABS_MARK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P08P1_ABS_MARK ASSIGNING <P08P1_ABS_MARK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P08P1_ABS_MARK>-PMRK1 = 1.
<P08P1_ABS_MARK>-CDSEQ = 1.
<P08P1_ABS_MARK>-CDFCT = 1.
<P08P1_ABS_MARK>-CRAB1 = 1.
<P08P1_ABS_MARK>-CQUAL = 1.

ENDLOOP.

LOOP AT IT_P08P1_ABS_MARK INTO WA_P08P1_ABS_MARK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P08P1_ABS_MARK-CWTDS, sy-vline,
  WA_P08P1_ABS_MARK-CRAB2, sy-vline,
  WA_P08P1_ABS_MARK-CREVC, sy-vline,
  WA_P08P1_ABS_MARK-CREXT, sy-vline,
  WA_P08P1_ABS_MARK-CFILL, sy-vline,
  WA_P08P1_ABS_MARK-PMRK2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P08P1_ABS_MARK 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_P08P1_ABS_MARK 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_P08P1_ABS_MARK INTO WA_P08P1_ABS_MARK.


*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_P08P1_ABS_MARK_STR, 
PMRK1 TYPE STRING,
CDSEQ TYPE STRING,
CDFCT TYPE STRING,
CRAB1 TYPE STRING,
CQUAL TYPE STRING,
CWTDS TYPE STRING,
CRAB2 TYPE STRING,
CREVC TYPE STRING,
CREXT TYPE STRING,
CFILL TYPE STRING,
PMRK2 TYPE STRING,
CDSEQ TYPE STRING,
CDFCT TYPE STRING,
CRAB1 TYPE STRING,
CQUAL TYPE STRING,
CWTDS TYPE STRING,
CRAB2 TYPE STRING,
CREVC TYPE STRING,
CREXT TYPE STRING,
CFILL TYPE STRING,
PMRK3 TYPE STRING,
CDSEQ TYPE STRING,
CDFCT TYPE STRING,
CRAB1 TYPE STRING,
CQUAL TYPE STRING,
CWTDS TYPE STRING,
CRAB2 TYPE STRING,
CREVC TYPE STRING,
CREXT TYPE STRING,
CFILL TYPE STRING,
PMRK4 TYPE STRING,
CDSEQ TYPE STRING,
CDFCT TYPE STRING,
CRAB1 TYPE STRING,
CQUAL TYPE STRING,
CWTDS TYPE STRING,
CRAB2 TYPE STRING,
CREVC TYPE STRING,
CREXT TYPE STRING,
CFILL TYPE STRING,
PMRK5 TYPE STRING,
CDSEQ TYPE STRING,
CDFCT TYPE STRING,
CRAB1 TYPE STRING,
CQUAL TYPE STRING,
CWTDS TYPE STRING,
CRAB2 TYPE STRING,
CREVC TYPE STRING,
CREXT TYPE STRING,
CFILL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P08P1_ABS_MARK_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_P08P1_ABS_MARK_STR-PMRK1 sy-vline 
WA_P08P1_ABS_MARK_STR-CDSEQ sy-vline 
WA_P08P1_ABS_MARK_STR-CDFCT sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB1 sy-vline 
WA_P08P1_ABS_MARK_STR-CQUAL sy-vline 
WA_P08P1_ABS_MARK_STR-CWTDS sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB2 sy-vline 
WA_P08P1_ABS_MARK_STR-CREVC sy-vline 
WA_P08P1_ABS_MARK_STR-CREXT sy-vline 
WA_P08P1_ABS_MARK_STR-CFILL sy-vline 
WA_P08P1_ABS_MARK_STR-PMRK2 sy-vline 
WA_P08P1_ABS_MARK_STR-CDSEQ sy-vline 
WA_P08P1_ABS_MARK_STR-CDFCT sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB1 sy-vline 
WA_P08P1_ABS_MARK_STR-CQUAL sy-vline 
WA_P08P1_ABS_MARK_STR-CWTDS sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB2 sy-vline 
WA_P08P1_ABS_MARK_STR-CREVC sy-vline 
WA_P08P1_ABS_MARK_STR-CREXT sy-vline 
WA_P08P1_ABS_MARK_STR-CFILL sy-vline 
WA_P08P1_ABS_MARK_STR-PMRK3 sy-vline 
WA_P08P1_ABS_MARK_STR-CDSEQ sy-vline 
WA_P08P1_ABS_MARK_STR-CDFCT sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB1 sy-vline 
WA_P08P1_ABS_MARK_STR-CQUAL sy-vline 
WA_P08P1_ABS_MARK_STR-CWTDS sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB2 sy-vline 
WA_P08P1_ABS_MARK_STR-CREVC sy-vline 
WA_P08P1_ABS_MARK_STR-CREXT sy-vline 
WA_P08P1_ABS_MARK_STR-CFILL sy-vline 
WA_P08P1_ABS_MARK_STR-PMRK4 sy-vline 
WA_P08P1_ABS_MARK_STR-CDSEQ sy-vline 
WA_P08P1_ABS_MARK_STR-CDFCT sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB1 sy-vline 
WA_P08P1_ABS_MARK_STR-CQUAL sy-vline 
WA_P08P1_ABS_MARK_STR-CWTDS sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB2 sy-vline 
WA_P08P1_ABS_MARK_STR-CREVC sy-vline 
WA_P08P1_ABS_MARK_STR-CREXT sy-vline 
WA_P08P1_ABS_MARK_STR-CFILL sy-vline 
WA_P08P1_ABS_MARK_STR-PMRK5 sy-vline 
WA_P08P1_ABS_MARK_STR-CDSEQ sy-vline 
WA_P08P1_ABS_MARK_STR-CDFCT sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB1 sy-vline 
WA_P08P1_ABS_MARK_STR-CQUAL sy-vline 
WA_P08P1_ABS_MARK_STR-CWTDS sy-vline 
WA_P08P1_ABS_MARK_STR-CRAB2 sy-vline 
WA_P08P1_ABS_MARK_STR-CREVC sy-vline 
WA_P08P1_ABS_MARK_STR-CREXT sy-vline 
WA_P08P1_ABS_MARK_STR-CFILL sy-vline      INTO ld_text SEPARATED BY SPACE.

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