ABAP Select data from SAP table PADBOOK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PADBOOK
*  INTO TABLE @DATA(IT_PADBOOK2).
*--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_PADBOOK INDEX 1 INTO DATA(WA_PADBOOK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PADBOOK>-TPARTDOCNO = 1.
<PADBOOK>-MANZL = 1.
<PADBOOK>-BUDAT = 1.
<PADBOOK>-INTEX = 1.
<PADBOOK>-KKOST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PADBOOK-KWAER, sy-vline,
  WA_PADBOOK-REFDOCNO, sy-vline,
  WA_PADBOOK-REFDOCITEM, sy-vline,
  WA_PADBOOK-REFDOCSEQNR, sy-vline,
  WA_PADBOOK-CREDITBELNR, sy-vline,
  WA_PADBOOK-CREDITITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PADBOOK 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_PADBOOK 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_PADBOOK INTO WA_PADBOOK.


*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 TPARTDOCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PADBOOK-TPARTDOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PADBOOK-TPARTDOCNO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CREDITBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PADBOOK-CREDITBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PADBOOK-CREDITBELNR.
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_PADBOOK_STR, 
TPARTDOCNO TYPE STRING,
MANZL TYPE STRING,
BUDAT TYPE STRING,
INTEX TYPE STRING,
KKOST TYPE STRING,
KWAER TYPE STRING,
REFDOCNO TYPE STRING,
REFDOCITEM TYPE STRING,
REFDOCSEQNR TYPE STRING,
CREDITBELNR TYPE STRING,
CREDITITEM TYPE STRING,
CREDITSEQNR TYPE STRING,
CURRI_TYPE TYPE STRING,
CURRI_ID TYPE STRING,
EXPID TYPE STRING,
LEARN_STATUS TYPE STRING,
ACCESS_COUNTER TYPE STRING,
TRACKING_STATUS TYPE STRING,
CONFIRMED TYPE STRING,
PASSED TYPE STRING,
FAILED TYPE STRING,
FOLLOW_UP TYPE STRING,
CAATR TYPE STRING,
PREVSCLAS TYPE STRING,
PREVSOBID TYPE STRING,
CP_TYPE TYPE STRING,
CP_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PADBOOK_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_PADBOOK_STR-TPARTDOCNO sy-vline 
WA_PADBOOK_STR-MANZL sy-vline 
WA_PADBOOK_STR-BUDAT sy-vline 
WA_PADBOOK_STR-INTEX sy-vline 
WA_PADBOOK_STR-KKOST sy-vline 
WA_PADBOOK_STR-KWAER sy-vline 
WA_PADBOOK_STR-REFDOCNO sy-vline 
WA_PADBOOK_STR-REFDOCITEM sy-vline 
WA_PADBOOK_STR-REFDOCSEQNR sy-vline 
WA_PADBOOK_STR-CREDITBELNR sy-vline 
WA_PADBOOK_STR-CREDITITEM sy-vline 
WA_PADBOOK_STR-CREDITSEQNR sy-vline 
WA_PADBOOK_STR-CURRI_TYPE sy-vline 
WA_PADBOOK_STR-CURRI_ID sy-vline 
WA_PADBOOK_STR-EXPID sy-vline 
WA_PADBOOK_STR-LEARN_STATUS sy-vline 
WA_PADBOOK_STR-ACCESS_COUNTER sy-vline 
WA_PADBOOK_STR-TRACKING_STATUS sy-vline 
WA_PADBOOK_STR-CONFIRMED sy-vline 
WA_PADBOOK_STR-PASSED sy-vline 
WA_PADBOOK_STR-FAILED sy-vline 
WA_PADBOOK_STR-FOLLOW_UP sy-vline 
WA_PADBOOK_STR-CAATR sy-vline 
WA_PADBOOK_STR-PREVSCLAS sy-vline 
WA_PADBOOK_STR-PREVSOBID sy-vline 
WA_PADBOOK_STR-CP_TYPE sy-vline 
WA_PADBOOK_STR-CP_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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