ABAP Select data from SAP table P08P1CNT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P08P1CNT 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 P08P1CNT. 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 P08P1CNT 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_P08P1CNT TYPE STANDARD TABLE OF P08P1CNT,
      WA_P08P1CNT TYPE P08P1CNT,
      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: <P08P1CNT> TYPE P08P1CNT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P08P1CNT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P08P1CNT
  INTO TABLE IT_P08P1CNT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P08P1CNT
*  INTO TABLE @DATA(IT_P08P1CNT2).
*--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_P08P1CNT INDEX 1 INTO DATA(WA_P08P1CNT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P08P1CNT ASSIGNING <P08P1CNT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P08P1CNT>-MANDT = 1.
<P08P1CNT>-SDATE = 1.
<P08P1CNT>-RUNNO = 1.
<P08P1CNT>-YREND = 1.
<P08P1CNT>-CHKSN = 1.

ENDLOOP.

LOOP AT IT_P08P1CNT INTO WA_P08P1CNT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P08P1CNT-RERUN, sy-vline,
  WA_P08P1CNT-RRNNO, sy-vline,
  WA_P08P1CNT-RDATE, sy-vline,
  WA_P08P1CNT-RTIME, sy-vline,
  WA_P08P1CNT-RNAME, sy-vline,
  WA_P08P1CNT-EMPCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P08P1CNT 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_P08P1CNT 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_P08P1CNT INTO WA_P08P1CNT.


*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_P08P1CNT_STR, 
MANDT TYPE STRING,
SDATE TYPE STRING,
RUNNO TYPE STRING,
YREND TYPE STRING,
CHKSN TYPE STRING,
RERUN TYPE STRING,
RRNNO TYPE STRING,
RDATE TYPE STRING,
RTIME TYPE STRING,
RNAME TYPE STRING,
EMPCT TYPE STRING,
EMPOK 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,
TMSID TYPE STRING,
FILID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P08P1CNT_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_P08P1CNT_STR-MANDT sy-vline 
WA_P08P1CNT_STR-SDATE sy-vline 
WA_P08P1CNT_STR-RUNNO sy-vline 
WA_P08P1CNT_STR-YREND sy-vline 
WA_P08P1CNT_STR-CHKSN sy-vline 
WA_P08P1CNT_STR-RERUN sy-vline 
WA_P08P1CNT_STR-RRNNO sy-vline 
WA_P08P1CNT_STR-RDATE sy-vline 
WA_P08P1CNT_STR-RTIME sy-vline 
WA_P08P1CNT_STR-RNAME sy-vline 
WA_P08P1CNT_STR-EMPCT sy-vline 
WA_P08P1CNT_STR-EMPOK sy-vline 
WA_P08P1CNT_STR-DAR01 sy-vline 
WA_P08P1CNT_STR-DAR02 sy-vline 
WA_P08P1CNT_STR-DAR03 sy-vline 
WA_P08P1CNT_STR-DAR04 sy-vline 
WA_P08P1CNT_STR-MEMCT sy-vline 
WA_P08P1CNT_STR-STRCT sy-vline 
WA_P08P1CNT_STR-NICCT sy-vline 
WA_P08P1CNT_STR-ACTCT sy-vline 
WA_P08P1CNT_STR-PENCT sy-vline 
WA_P08P1CNT_STR-SIXCT sy-vline 
WA_P08P1CNT_STR-TMSID sy-vline 
WA_P08P1CNT_STR-FILID sy-vline      INTO ld_text SEPARATED BY SPACE.

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