ABAP Select data from SAP table PAD23 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAD23 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 PAD23. 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 PAD23 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_PAD23 TYPE STANDARD TABLE OF PAD23,
      WA_PAD23 TYPE PAD23,
      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: <PAD23> TYPE PAD23.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PAD23.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PAD23
  INTO TABLE IT_PAD23.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAD23
*  INTO TABLE @DATA(IT_PAD232).
*--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_PAD23 INDEX 1 INTO DATA(WA_PAD232).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PAD23 ASSIGNING <PAD23>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAD23>-OTYPE = 1.
<PAD23>-OBJID = 1.
<PAD23>-BEGUZ = 1.
<PAD23>-ENDUZ = 1.
<PAD23>-EVENT = 1.

ENDLOOP.

LOOP AT IT_PAD23 INTO WA_PAD23.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAD23-STATUS, sy-vline,
  WA_PAD23-REFDOCNO, sy-vline,
  WA_PAD23-DOCITEM, sy-vline,
  WA_PAD23-DOCUMENTDATE, sy-vline,
  WA_PAD23-POSTINGDATE, sy-vline,
  WA_PAD23-DOCUNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAD23 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_PAD23 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_PAD23 INTO WA_PAD23.


*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.

*Conversion exit ALPHA, internal->external for field REFDOCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAD23-REFDOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAD23-REFDOCNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SCOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAD23-SCOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAD23-SCOSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAD23-RCOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAD23-RCOSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECEIVEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAD23-RECEIVEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAD23-RECEIVEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RSALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAD23-RSALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAD23-RSALESORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAD23-COSTELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAD23-COSTELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PAD23-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAD23-UNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PAD23_STR, 
OTYPE TYPE STRING,
OBJID TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
EVENT TYPE STRING,
STATUS TYPE STRING,
REFDOCNO TYPE STRING,
DOCITEM TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUNAME TYPE STRING,
PRICE TYPE STRING,
CURRENCY TYPE STRING,
CO_AREA TYPE STRING,
SCOSTCENTER TYPE STRING,
RCOSTCENTER TYPE STRING,
RECEIVEORDER TYPE STRING,
RSALESORDER TYPE STRING,
RSALESITEM TYPE STRING,
ACTIVITYTYPE TYPE STRING,
COSTELEMENT TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
MATRESNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAD23_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_PAD23_STR-OTYPE sy-vline 
WA_PAD23_STR-OBJID sy-vline 
WA_PAD23_STR-BEGUZ sy-vline 
WA_PAD23_STR-ENDUZ sy-vline 
WA_PAD23_STR-EVENT sy-vline 
WA_PAD23_STR-STATUS sy-vline 
WA_PAD23_STR-REFDOCNO sy-vline 
WA_PAD23_STR-DOCITEM sy-vline 
WA_PAD23_STR-DOCUMENTDATE sy-vline 
WA_PAD23_STR-POSTINGDATE sy-vline 
WA_PAD23_STR-DOCUNAME sy-vline 
WA_PAD23_STR-PRICE sy-vline 
WA_PAD23_STR-CURRENCY sy-vline 
WA_PAD23_STR-CO_AREA sy-vline 
WA_PAD23_STR-SCOSTCENTER sy-vline 
WA_PAD23_STR-RCOSTCENTER sy-vline 
WA_PAD23_STR-RECEIVEORDER sy-vline 
WA_PAD23_STR-RSALESORDER sy-vline 
WA_PAD23_STR-RSALESITEM sy-vline 
WA_PAD23_STR-ACTIVITYTYPE sy-vline 
WA_PAD23_STR-COSTELEMENT sy-vline 
WA_PAD23_STR-QUANTITY sy-vline 
WA_PAD23_STR-UNIT sy-vline 
WA_PAD23_STR-MATRESNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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