ABAP Select data from SAP table PTDB_KABGL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTDB_KABGL
*  INTO TABLE @DATA(IT_PTDB_KABGL2).
*--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_PTDB_KABGL INDEX 1 INTO DATA(WA_PTDB_KABGL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTDB_KABGL>-SKV_BNRSK = 1.
<PTDB_KABGL>-SKV_ZVKAN = 1.
<PTDB_KABGL>-SKV_PERNR = 1.
<PTDB_KABGL>-SKV_NACHN = 1.
<PTDB_KABGL>-SKV_VORNA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTDB_KABGL-SKV_SWBE, sy-vline,
  WA_PTDB_KABGL-SKV_ULJRT, sy-vline,
  WA_PTDB_KABGL-SKV_ULJRV, sy-vline,
  WA_PTDB_KABGL-SKV_BLOHN, sy-vline,
  WA_PTDB_KABGL-SKV_AGLST, sy-vline,
  WA_PTDB_KABGL-SKV_AGLBT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTDB_KABGL 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_PTDB_KABGL 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_PTDB_KABGL INTO WA_PTDB_KABGL.


*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_PTDB_KABGL_STR, 
SKV_BNRSK TYPE STRING,
SKV_ZVKAN TYPE STRING,
SKV_PERNR TYPE STRING,
SKV_NACHN TYPE STRING,
SKV_VORNA TYPE STRING,
SKV_SWBE TYPE STRING,
SKV_ULJRT TYPE STRING,
SKV_ULJRV TYPE STRING,
SKV_BLOHN TYPE STRING,
SKV_AGLST TYPE STRING,
SKV_AGLBT TYPE STRING,
SKV_BTAGE TYPE STRING,
SKV_UGRT TYPE STRING,
SKV_UGRV TYPE STRING,
SKV_KENNF TYPE STRING,
SKV_FPPER TYPE STRING,
SKV_INPER2 TYPE STRING,
SKV_WAERS TYPE STRING,
DIFF TYPE STRING,
DIFF_GRUND TYPE STRING,
BNRSK TYPE STRING,
ZVKAN TYPE STRING,
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
SWBE TYPE STRING,
ULJRT TYPE STRING,
ULJRV TYPE STRING,
BLOHN TYPE STRING,
AGLST TYPE STRING,
AGLBT TYPE STRING,
BTAGE TYPE STRING,
UGRT TYPE STRING,
UGRV TYPE STRING,
KENNF TYPE STRING,
FPPER TYPE STRING,
INPER TYPE STRING,
WAERS TYPE STRING,
BUKRS TYPE STRING,
ABKRS TYPE STRING,
ZVKAS TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SPLITT TYPE STRING,
ERROR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTDB_KABGL_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_PTDB_KABGL_STR-SKV_BNRSK sy-vline 
WA_PTDB_KABGL_STR-SKV_ZVKAN sy-vline 
WA_PTDB_KABGL_STR-SKV_PERNR sy-vline 
WA_PTDB_KABGL_STR-SKV_NACHN sy-vline 
WA_PTDB_KABGL_STR-SKV_VORNA sy-vline 
WA_PTDB_KABGL_STR-SKV_SWBE sy-vline 
WA_PTDB_KABGL_STR-SKV_ULJRT sy-vline 
WA_PTDB_KABGL_STR-SKV_ULJRV sy-vline 
WA_PTDB_KABGL_STR-SKV_BLOHN sy-vline 
WA_PTDB_KABGL_STR-SKV_AGLST sy-vline 
WA_PTDB_KABGL_STR-SKV_AGLBT sy-vline 
WA_PTDB_KABGL_STR-SKV_BTAGE sy-vline 
WA_PTDB_KABGL_STR-SKV_UGRT sy-vline 
WA_PTDB_KABGL_STR-SKV_UGRV sy-vline 
WA_PTDB_KABGL_STR-SKV_KENNF sy-vline 
WA_PTDB_KABGL_STR-SKV_FPPER sy-vline 
WA_PTDB_KABGL_STR-SKV_INPER2 sy-vline 
WA_PTDB_KABGL_STR-SKV_WAERS sy-vline 
WA_PTDB_KABGL_STR-DIFF sy-vline 
WA_PTDB_KABGL_STR-DIFF_GRUND sy-vline 
WA_PTDB_KABGL_STR-BNRSK sy-vline 
WA_PTDB_KABGL_STR-ZVKAN sy-vline 
WA_PTDB_KABGL_STR-PERNR sy-vline 
WA_PTDB_KABGL_STR-NACHN sy-vline 
WA_PTDB_KABGL_STR-VORNA sy-vline 
WA_PTDB_KABGL_STR-SWBE sy-vline 
WA_PTDB_KABGL_STR-ULJRT sy-vline 
WA_PTDB_KABGL_STR-ULJRV sy-vline 
WA_PTDB_KABGL_STR-BLOHN sy-vline 
WA_PTDB_KABGL_STR-AGLST sy-vline 
WA_PTDB_KABGL_STR-AGLBT sy-vline 
WA_PTDB_KABGL_STR-BTAGE sy-vline 
WA_PTDB_KABGL_STR-UGRT sy-vline 
WA_PTDB_KABGL_STR-UGRV sy-vline 
WA_PTDB_KABGL_STR-KENNF sy-vline 
WA_PTDB_KABGL_STR-FPPER sy-vline 
WA_PTDB_KABGL_STR-INPER sy-vline 
WA_PTDB_KABGL_STR-WAERS sy-vline 
WA_PTDB_KABGL_STR-BUKRS sy-vline 
WA_PTDB_KABGL_STR-ABKRS sy-vline 
WA_PTDB_KABGL_STR-ZVKAS sy-vline 
WA_PTDB_KABGL_STR-BEGDA sy-vline 
WA_PTDB_KABGL_STR-ENDDA sy-vline 
WA_PTDB_KABGL_STR-SPLITT sy-vline 
WA_PTDB_KABGL_STR-ERROR sy-vline      INTO ld_text SEPARATED BY SPACE.

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