ABAP Select data from SAP table P08P_CLSC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P08P_CLSC 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 P08P_CLSC. 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 P08P_CLSC 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_P08P_CLSC TYPE STANDARD TABLE OF P08P_CLSC,
      WA_P08P_CLSC TYPE P08P_CLSC,
      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: <P08P_CLSC> TYPE P08P_CLSC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P08P_CLSC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P08P_CLSC
  INTO TABLE IT_P08P_CLSC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P08P_CLSC
*  INTO TABLE @DATA(IT_P08P_CLSC2).
*--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_P08P_CLSC INDEX 1 INTO DATA(WA_P08P_CLSC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P08P_CLSC ASSIGNING <P08P_CLSC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P08P_CLSC>-MANDT = 1.
<P08P_CLSC>-RRUNN = 1.
<P08P_CLSC>-RSTRN = 1.
<P08P_CLSC>-RSNAP = 1.
<P08P_CLSC>-RYERN = 1.

ENDLOOP.

LOOP AT IT_P08P_CLSC INTO WA_P08P_CLSC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P08P_CLSC-RYEAR, sy-vline,
  WA_P08P_CLSC-RRERN, sy-vline,
  WA_P08P_CLSC-RRRNO, sy-vline,
  WA_P08P_CLSC-RDATE, sy-vline,
  WA_P08P_CLSC-RTIME, sy-vline,
  WA_P08P_CLSC-RNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P08P_CLSC 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_P08P_CLSC 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_P08P_CLSC INTO WA_P08P_CLSC.


*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 GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_P08P_CLSC-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P08P_CLSC-RYEAR.
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_P08P_CLSC_STR, 
MANDT TYPE STRING,
RRUNN TYPE STRING,
RSTRN TYPE STRING,
RSNAP TYPE STRING,
RYERN TYPE STRING,
RYEAR TYPE STRING,
RRERN TYPE STRING,
RRRNO TYPE STRING,
RDATE TYPE STRING,
RTIME TYPE STRING,
RNAME TYPE STRING,
ROALV TYPE STRING,
ROTMS TYPE STRING,
ROFSY TYPE STRING,
RTMSE TYPE STRING,
RFILE TYPE STRING,
REMPT TYPE STRING,
REMPR TYPE STRING,
REMPC TYPE STRING,
REMPS TYPE STRING,
REMPF TYPE STRING,
DAR01 TYPE STRING,
DAR02 TYPE STRING,
DAR03 TYPE STRING,
DAR04 TYPE STRING,
MEMCT TYPE STRING,
STRCT TYPE STRING,
NICCT TYPE STRING,
ACTCT TYPE STRING,
PENCT TYPE STRING,
SIXCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P08P_CLSC_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_P08P_CLSC_STR-MANDT sy-vline 
WA_P08P_CLSC_STR-RRUNN sy-vline 
WA_P08P_CLSC_STR-RSTRN sy-vline 
WA_P08P_CLSC_STR-RSNAP sy-vline 
WA_P08P_CLSC_STR-RYERN sy-vline 
WA_P08P_CLSC_STR-RYEAR sy-vline 
WA_P08P_CLSC_STR-RRERN sy-vline 
WA_P08P_CLSC_STR-RRRNO sy-vline 
WA_P08P_CLSC_STR-RDATE sy-vline 
WA_P08P_CLSC_STR-RTIME sy-vline 
WA_P08P_CLSC_STR-RNAME sy-vline 
WA_P08P_CLSC_STR-ROALV sy-vline 
WA_P08P_CLSC_STR-ROTMS sy-vline 
WA_P08P_CLSC_STR-ROFSY sy-vline 
WA_P08P_CLSC_STR-RTMSE sy-vline 
WA_P08P_CLSC_STR-RFILE sy-vline 
WA_P08P_CLSC_STR-REMPT sy-vline 
WA_P08P_CLSC_STR-REMPR sy-vline 
WA_P08P_CLSC_STR-REMPC sy-vline 
WA_P08P_CLSC_STR-REMPS sy-vline 
WA_P08P_CLSC_STR-REMPF sy-vline 
WA_P08P_CLSC_STR-DAR01 sy-vline 
WA_P08P_CLSC_STR-DAR02 sy-vline 
WA_P08P_CLSC_STR-DAR03 sy-vline 
WA_P08P_CLSC_STR-DAR04 sy-vline 
WA_P08P_CLSC_STR-MEMCT sy-vline 
WA_P08P_CLSC_STR-STRCT sy-vline 
WA_P08P_CLSC_STR-NICCT sy-vline 
WA_P08P_CLSC_STR-ACTCT sy-vline 
WA_P08P_CLSC_STR-PENCT sy-vline 
WA_P08P_CLSC_STR-SIXCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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