ABAP Select data from SAP table PC2D0 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2D0 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 PC2D0. 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 PC2D0 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_PC2D0 TYPE STANDARD TABLE OF PC2D0,
      WA_PC2D0 TYPE PC2D0,
      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: <PC2D0> TYPE PC2D0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2D0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2D0
  INTO TABLE IT_PC2D0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2D0
*  INTO TABLE @DATA(IT_PC2D02).
*--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_PC2D0 INDEX 1 INTO DATA(WA_PC2D02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2D0 ASSIGNING <PC2D0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2D0>-NREMP = 1.
<PC2D0>-BEGDA = 1.
<PC2D0>-ENDDA = 1.
<PC2D0>-RSZNR = 1.
<PC2D0>-RSZKN = 1.

ENDLOOP.

LOOP AT IT_PC2D0 INTO WA_PC2D0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2D0-RSZCA, sy-vline,
  WA_PC2D0-TRSTE, sy-vline,
  WA_PC2D0-BEGPC, sy-vline,
  WA_PC2D0-WRKDD, sy-vline,
  WA_PC2D0-WDS, sy-vline,
  WA_PC2D0-MWHWK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2D0 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_PC2D0 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_PC2D0 INTO WA_PC2D0.


*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_PC2D0_STR, 
NREMP TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
RSZNR TYPE STRING,
RSZKN TYPE STRING,
RSZCA TYPE STRING,
TRSTE TYPE STRING,
BEGPC TYPE STRING,
WRKDD TYPE STRING,
WDS TYPE STRING,
MWHWK TYPE STRING,
RFMWH TYPE STRING,
CTTYP TYPE STRING,
REMES TYPE STRING,
EMPLP TYPE STRING,
WRKRS TYPE STRING,
RETIR TYPE STRING,
APTYP TYPE STRING,
MODRM TYPE STRING,
POSCD TYPE STRING,
FLYCL TYPE STRING,
10V12 TYPE STRING,
WRKHR TYPE STRING,
COMID TYPE STRING,
NACEC TYPE STRING,
REMTY TYPE STRING,
CAPEX TYPE STRING,
LOCUN TYPE STRING,
RCAIN TYPE STRING,
TMPFT TYPE STRING,
ILLDT TYPE STRING,
SEREX TYPE STRING,
CARME TYPE STRING,
SEXSD TYPE STRING,
TRASI TYPE STRING,
TSISD TYPE STRING,
SMWHR TYPE STRING,
SECDT TYPE STRING,
SUPCE TYPE STRING,
PSTWO TYPE STRING,
DENOD TYPE STRING,
ESWDS TYPE STRING,
ESMWH TYPE STRING,
REAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2D0_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_PC2D0_STR-NREMP sy-vline 
WA_PC2D0_STR-BEGDA sy-vline 
WA_PC2D0_STR-ENDDA sy-vline 
WA_PC2D0_STR-RSZNR sy-vline 
WA_PC2D0_STR-RSZKN sy-vline 
WA_PC2D0_STR-RSZCA sy-vline 
WA_PC2D0_STR-TRSTE sy-vline 
WA_PC2D0_STR-BEGPC sy-vline 
WA_PC2D0_STR-WRKDD sy-vline 
WA_PC2D0_STR-WDS sy-vline 
WA_PC2D0_STR-MWHWK sy-vline 
WA_PC2D0_STR-RFMWH sy-vline 
WA_PC2D0_STR-CTTYP sy-vline 
WA_PC2D0_STR-REMES sy-vline 
WA_PC2D0_STR-EMPLP sy-vline 
WA_PC2D0_STR-WRKRS sy-vline 
WA_PC2D0_STR-RETIR sy-vline 
WA_PC2D0_STR-APTYP sy-vline 
WA_PC2D0_STR-MODRM sy-vline 
WA_PC2D0_STR-POSCD sy-vline 
WA_PC2D0_STR-FLYCL sy-vline 
WA_PC2D0_STR-10V12 sy-vline 
WA_PC2D0_STR-WRKHR sy-vline 
WA_PC2D0_STR-COMID sy-vline 
WA_PC2D0_STR-NACEC sy-vline 
WA_PC2D0_STR-REMTY sy-vline 
WA_PC2D0_STR-CAPEX sy-vline 
WA_PC2D0_STR-LOCUN sy-vline 
WA_PC2D0_STR-RCAIN sy-vline 
WA_PC2D0_STR-TMPFT sy-vline 
WA_PC2D0_STR-ILLDT sy-vline 
WA_PC2D0_STR-SEREX sy-vline 
WA_PC2D0_STR-CARME sy-vline 
WA_PC2D0_STR-SEXSD sy-vline 
WA_PC2D0_STR-TRASI sy-vline 
WA_PC2D0_STR-TSISD sy-vline 
WA_PC2D0_STR-SMWHR sy-vline 
WA_PC2D0_STR-SECDT sy-vline 
WA_PC2D0_STR-SUPCE sy-vline 
WA_PC2D0_STR-PSTWO sy-vline 
WA_PC2D0_STR-DENOD sy-vline 
WA_PC2D0_STR-ESWDS sy-vline 
WA_PC2D0_STR-ESMWH sy-vline 
WA_PC2D0_STR-REAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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