ABAP Select data from SAP table PC222 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC222 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 PC222. 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 PC222 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_PC222 TYPE STANDARD TABLE OF PC222,
      WA_PC222 TYPE PC222,
      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: <PC222> TYPE PC222.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC222.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC222
  INTO TABLE IT_PC222.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC222
*  INTO TABLE @DATA(IT_PC2222).
*--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_PC222 INDEX 1 INTO DATA(WA_PC2222).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC222 ASSIGNING <PC222>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC222>-BEGDA = 1.
<PC222>-ENDDA = 1.
<PC222>-CNTR1 = 1.
<PC222>-PTYPE = 1.
<PC222>-T5M7N_WEE = 1.

ENDLOOP.

LOOP AT IT_PC222 INTO WA_PC222.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC222-T5M7N_WER, sy-vline,
  WA_PC222-AMPCR, sy-vline,
  WA_PC222-AMP_INST, sy-vline,
  WA_PC222-PEGRL, sy-vline,
  WA_PC222-PEGRLBTRG, sy-vline,
  WA_PC222-KAPKZAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC222 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_PC222 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_PC222 INTO WA_PC222.


*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_PC222_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
CNTR1 TYPE STRING,
PTYPE TYPE STRING,
T5M7N_WEE TYPE STRING,
T5M7N_WER TYPE STRING,
AMPCR TYPE STRING,
AMP_INST TYPE STRING,
PEGRL TYPE STRING,
PEGRLBTRG TYPE STRING,
KAPKZAG TYPE STRING,
PENSRZ_ABG TYPE STRING,
BTRAG TYPE STRING,
PRZAG TYPE STRING,
KAPKZMA TYPE STRING,
PENSRZ_ABN TYPE STRING,
BTRMA TYPE STRING,
PRZMA TYPE STRING,
POLNR TYPE STRING,
BMODT TYPE STRING,
BANKL TYPE STRING,
BKKTO TYPE STRING,
MPACSPLTEE TYPE STRING,
MPACSPLTER TYPE STRING,
TRANS TYPE STRING,
PBSNR TYPE STRING,
INST TYPE STRING,
AFTLN TYPE STRING,
CREAS TYPE STRING,
PADWT TYPE STRING,
PBSWT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC222_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_PC222_STR-BEGDA sy-vline 
WA_PC222_STR-ENDDA sy-vline 
WA_PC222_STR-CNTR1 sy-vline 
WA_PC222_STR-PTYPE sy-vline 
WA_PC222_STR-T5M7N_WEE sy-vline 
WA_PC222_STR-T5M7N_WER sy-vline 
WA_PC222_STR-AMPCR sy-vline 
WA_PC222_STR-AMP_INST sy-vline 
WA_PC222_STR-PEGRL sy-vline 
WA_PC222_STR-PEGRLBTRG sy-vline 
WA_PC222_STR-KAPKZAG sy-vline 
WA_PC222_STR-PENSRZ_ABG sy-vline 
WA_PC222_STR-BTRAG sy-vline 
WA_PC222_STR-PRZAG sy-vline 
WA_PC222_STR-KAPKZMA sy-vline 
WA_PC222_STR-PENSRZ_ABN sy-vline 
WA_PC222_STR-BTRMA sy-vline 
WA_PC222_STR-PRZMA sy-vline 
WA_PC222_STR-POLNR sy-vline 
WA_PC222_STR-BMODT sy-vline 
WA_PC222_STR-BANKL sy-vline 
WA_PC222_STR-BKKTO sy-vline 
WA_PC222_STR-MPACSPLTEE sy-vline 
WA_PC222_STR-MPACSPLTER sy-vline 
WA_PC222_STR-TRANS sy-vline 
WA_PC222_STR-PBSNR sy-vline 
WA_PC222_STR-INST sy-vline 
WA_PC222_STR-AFTLN sy-vline 
WA_PC222_STR-CREAS sy-vline 
WA_PC222_STR-PADWT sy-vline 
WA_PC222_STR-PBSWT sy-vline      INTO ld_text SEPARATED BY SPACE.

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