ABAP Select data from SAP table PC23J into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC23J 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 PC23J. 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 PC23J 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_PC23J TYPE STANDARD TABLE OF PC23J,
      WA_PC23J TYPE PC23J,
      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: <PC23J> TYPE PC23J.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC23J.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC23J
  INTO TABLE IT_PC23J.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC23J
*  INTO TABLE @DATA(IT_PC23J2).
*--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_PC23J INDEX 1 INTO DATA(WA_PC23J2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC23J ASSIGNING <PC23J>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC23J>-CNTR1 = 1.
<PC23J>-TAXLV = 1.
<PC23J>-TAXST = 1.
<PC23J>-TAXAU = 1.
<PC23J>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_PC23J INTO WA_PC23J.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC23J-ENDDA, sy-vline,
  WA_PC23J-ERUIC, sy-vline,
  WA_PC23J-WPROV, sy-vline,
  WA_PC23J-RPROV, sy-vline,
  WA_PC23J-RESID, sy-vline,
  WA_PC23J-TCL15, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC23J 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_PC23J 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_PC23J INTO WA_PC23J.


*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_PC23J_STR, 
CNTR1 TYPE STRING,
TAXLV TYPE STRING,
TAXST TYPE STRING,
TAXAU TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ERUIC TYPE STRING,
WPROV TYPE STRING,
RPROV TYPE STRING,
RESID TYPE STRING,
TCL15 TYPE STRING,
TCL06 TYPE STRING,
TCL09 TYPE STRING,
EXAMT TYPE STRING,
EXPCT TYPE STRING,
TEXHD TYPE STRING,
NODEP TYPE STRING,
COMRE TYPE STRING,
COMEX TYPE STRING,
TCOTH TYPE STRING,
RPPAM TYPE STRING,
TEXF1 TYPE STRING,
TEXF2 TYPE STRING,
LIEUA TYPE STRING,
LIEUP TYPE STRING,
EXTCD TYPE STRING,
TYP01 TYPE STRING,
FRM01 TYPE STRING,
EXP01 TYPE STRING,
TYP02 TYPE STRING,
FRM02 TYPE STRING,
EXP02 TYPE STRING,
TYP03 TYPE STRING,
FRM03 TYPE STRING,
EXP03 TYPE STRING,
TYP04 TYPE STRING,
FRM04 TYPE STRING,
EXP04 TYPE STRING,
TYP05 TYPE STRING,
FRM05 TYPE STRING,
EXP05 TYPE STRING,
TYP06 TYPE STRING,
FRM06 TYPE STRING,
EXP06 TYPE STRING,
TYP07 TYPE STRING,
FRM07 TYPE STRING,
EXP07 TYPE STRING,
TYP08 TYPE STRING,
FRM08 TYPE STRING,
EXP08 TYPE STRING,
TYP09 TYPE STRING,
FRM09 TYPE STRING,
EXP09 TYPE STRING,
TYP10 TYPE STRING,
FRM10 TYPE STRING,
EXP10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC23J_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_PC23J_STR-CNTR1 sy-vline 
WA_PC23J_STR-TAXLV sy-vline 
WA_PC23J_STR-TAXST sy-vline 
WA_PC23J_STR-TAXAU sy-vline 
WA_PC23J_STR-BEGDA sy-vline 
WA_PC23J_STR-ENDDA sy-vline 
WA_PC23J_STR-ERUIC sy-vline 
WA_PC23J_STR-WPROV sy-vline 
WA_PC23J_STR-RPROV sy-vline 
WA_PC23J_STR-RESID sy-vline 
WA_PC23J_STR-TCL15 sy-vline 
WA_PC23J_STR-TCL06 sy-vline 
WA_PC23J_STR-TCL09 sy-vline 
WA_PC23J_STR-EXAMT sy-vline 
WA_PC23J_STR-EXPCT sy-vline 
WA_PC23J_STR-TEXHD sy-vline 
WA_PC23J_STR-NODEP sy-vline 
WA_PC23J_STR-COMRE sy-vline 
WA_PC23J_STR-COMEX sy-vline 
WA_PC23J_STR-TCOTH sy-vline 
WA_PC23J_STR-RPPAM sy-vline 
WA_PC23J_STR-TEXF1 sy-vline 
WA_PC23J_STR-TEXF2 sy-vline 
WA_PC23J_STR-LIEUA sy-vline 
WA_PC23J_STR-LIEUP sy-vline 
WA_PC23J_STR-EXTCD sy-vline 
WA_PC23J_STR-TYP01 sy-vline 
WA_PC23J_STR-FRM01 sy-vline 
WA_PC23J_STR-EXP01 sy-vline 
WA_PC23J_STR-TYP02 sy-vline 
WA_PC23J_STR-FRM02 sy-vline 
WA_PC23J_STR-EXP02 sy-vline 
WA_PC23J_STR-TYP03 sy-vline 
WA_PC23J_STR-FRM03 sy-vline 
WA_PC23J_STR-EXP03 sy-vline 
WA_PC23J_STR-TYP04 sy-vline 
WA_PC23J_STR-FRM04 sy-vline 
WA_PC23J_STR-EXP04 sy-vline 
WA_PC23J_STR-TYP05 sy-vline 
WA_PC23J_STR-FRM05 sy-vline 
WA_PC23J_STR-EXP05 sy-vline 
WA_PC23J_STR-TYP06 sy-vline 
WA_PC23J_STR-FRM06 sy-vline 
WA_PC23J_STR-EXP06 sy-vline 
WA_PC23J_STR-TYP07 sy-vline 
WA_PC23J_STR-FRM07 sy-vline 
WA_PC23J_STR-EXP07 sy-vline 
WA_PC23J_STR-TYP08 sy-vline 
WA_PC23J_STR-FRM08 sy-vline 
WA_PC23J_STR-EXP08 sy-vline 
WA_PC23J_STR-TYP09 sy-vline 
WA_PC23J_STR-FRM09 sy-vline 
WA_PC23J_STR-EXP09 sy-vline 
WA_PC23J_STR-TYP10 sy-vline 
WA_PC23J_STR-FRM10 sy-vline 
WA_PC23J_STR-EXP10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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