ABAP Select data from SAP table PABCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PABCD
*  INTO TABLE @DATA(IT_PABCD2).
*--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_PABCD INDEX 1 INTO DATA(WA_PABCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PABCD>-LIT_A = 1.
<PABCD>-LIT_B = 1.
<PABCD>-LIT_C = 1.
<PABCD>-LIT_D = 1.
<PABCD>-LIT_E = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PABCD-LIT_F, sy-vline,
  WA_PABCD-LIT_G, sy-vline,
  WA_PABCD-LIT_H, sy-vline,
  WA_PABCD-LIT_I, sy-vline,
  WA_PABCD-LIT_J, sy-vline,
  WA_PABCD-LIT_K, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PABCD 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_PABCD 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_PABCD INTO WA_PABCD.


*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_PABCD_STR, 
LIT_A TYPE STRING,
LIT_B TYPE STRING,
LIT_C TYPE STRING,
LIT_D TYPE STRING,
LIT_E TYPE STRING,
LIT_F TYPE STRING,
LIT_G TYPE STRING,
LIT_H TYPE STRING,
LIT_I TYPE STRING,
LIT_J TYPE STRING,
LIT_K TYPE STRING,
LIT_L TYPE STRING,
LIT_M TYPE STRING,
LIT_N TYPE STRING,
LIT_O TYPE STRING,
LIT_P TYPE STRING,
LIT_Q TYPE STRING,
LIT_R TYPE STRING,
LIT_S TYPE STRING,
LIT_T TYPE STRING,
LIT_U TYPE STRING,
LIT_V TYPE STRING,
LIT_W TYPE STRING,
LIT_X TYPE STRING,
LIT_Y TYPE STRING,
LIT_Z TYPE STRING,
LIT_0 TYPE STRING,
LIT_1 TYPE STRING,
LIT_2 TYPE STRING,
LIT_3 TYPE STRING,
LIT_4 TYPE STRING,
LIT_5 TYPE STRING,
LIT_6 TYPE STRING,
LIT_7 TYPE STRING,
LIT_8 TYPE STRING,
LIT_9 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PABCD_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_PABCD_STR-LIT_A sy-vline 
WA_PABCD_STR-LIT_B sy-vline 
WA_PABCD_STR-LIT_C sy-vline 
WA_PABCD_STR-LIT_D sy-vline 
WA_PABCD_STR-LIT_E sy-vline 
WA_PABCD_STR-LIT_F sy-vline 
WA_PABCD_STR-LIT_G sy-vline 
WA_PABCD_STR-LIT_H sy-vline 
WA_PABCD_STR-LIT_I sy-vline 
WA_PABCD_STR-LIT_J sy-vline 
WA_PABCD_STR-LIT_K sy-vline 
WA_PABCD_STR-LIT_L sy-vline 
WA_PABCD_STR-LIT_M sy-vline 
WA_PABCD_STR-LIT_N sy-vline 
WA_PABCD_STR-LIT_O sy-vline 
WA_PABCD_STR-LIT_P sy-vline 
WA_PABCD_STR-LIT_Q sy-vline 
WA_PABCD_STR-LIT_R sy-vline 
WA_PABCD_STR-LIT_S sy-vline 
WA_PABCD_STR-LIT_T sy-vline 
WA_PABCD_STR-LIT_U sy-vline 
WA_PABCD_STR-LIT_V sy-vline 
WA_PABCD_STR-LIT_W sy-vline 
WA_PABCD_STR-LIT_X sy-vline 
WA_PABCD_STR-LIT_Y sy-vline 
WA_PABCD_STR-LIT_Z sy-vline 
WA_PABCD_STR-LIT_0 sy-vline 
WA_PABCD_STR-LIT_1 sy-vline 
WA_PABCD_STR-LIT_2 sy-vline 
WA_PABCD_STR-LIT_3 sy-vline 
WA_PABCD_STR-LIT_4 sy-vline 
WA_PABCD_STR-LIT_5 sy-vline 
WA_PABCD_STR-LIT_6 sy-vline 
WA_PABCD_STR-LIT_7 sy-vline 
WA_PABCD_STR-LIT_8 sy-vline 
WA_PABCD_STR-LIT_9 sy-vline      INTO ld_text SEPARATED BY SPACE.

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