ABAP Select data from SAP table PACKKP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PACKKP
*  INTO TABLE @DATA(IT_PACKKP2).
*--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_PACKKP INDEX 1 INTO DATA(WA_PACKKP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PACKKP>-MANDT = 1.
<PACKKP>-PACKNR = 1.
<PACKKP>-HDCOUNT = 1.
<PACKKP>-POBJID = 1.
<PACKKP>-PACKTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PACKKP-PARTID, sy-vline,
  WA_PACKKP-HEIGHT, sy-vline,
  WA_PACKKP-WIDTH, sy-vline,
  WA_PACKKP-LENGTH, sy-vline,
  WA_PACKKP-IHEIGHT, sy-vline,
  WA_PACKKP-IWIDTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PACKKP 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_PACKKP 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_PACKKP INTO WA_PACKKP.


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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field SMTNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PACKKP-SMTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PACKKP-SMTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TMUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PACKKP-TMUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PACKKP-TMUOM.
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_PACKKP_STR, 
MANDT TYPE STRING,
PACKNR TYPE STRING,
HDCOUNT TYPE STRING,
POBJID TYPE STRING,
PACKTYP TYPE STRING,
PARTID TYPE STRING,
HEIGHT TYPE STRING,
WIDTH TYPE STRING,
LENGTH TYPE STRING,
IHEIGHT TYPE STRING,
IWIDTH TYPE STRING,
ILENGTH TYPE STRING,
UNITDIM TYPE STRING,
SIZEFIX TYPE STRING,
TOTLVOL TYPE STRING,
LOADVOL TYPE STRING,
ALLOVOL TYPE STRING,
UNITVOL_MAX TYPE STRING,
TAREVOL TYPE STRING,
UNITVOL TYPE STRING,
VOLUMFIX TYPE STRING,
TOLEVOL TYPE STRING,
INDCLOPA TYPE STRING,
TOTLWEI TYPE STRING,
LOADWEI TYPE STRING,
ALLOWEI TYPE STRING,
UNITWEI_MAX TYPE STRING,
TAREWEI TYPE STRING,
UNITWEI TYPE STRING,
WEIGHTFIX TYPE STRING,
TOLEWEI TYPE STRING,
MAXSTWE TYPE STRING,
STFAC TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
CHNAM TYPE STRING,
POBJST TYPE STRING,
SHIPLABEL TYPE STRING,
MAPACO_ITEM TYPE STRING,
INDDEL TYPE STRING,
CHECKPROF TYPE STRING,
VEGR1 TYPE STRING,
VEGR2 TYPE STRING,
VEGR3 TYPE STRING,
VEGR4 TYPE STRING,
VEGR5 TYPE STRING,
LGNUM TYPE STRING,
STDTM TYPE STRING,
VTMRT TYPE STRING,
EXEMT TYPE STRING,
DSPTX TYPE STRING,
ACTSQ TYPE STRING,
HDRWC TYPE STRING,
BILLP TYPE STRING,
SHIPP TYPE STRING,
VENDR TYPE STRING,
PURIR TYPE STRING,
PIRTX TYPE STRING,
AGRMT TYPE STRING,
AGRTX TYPE STRING,
SMTNR TYPE STRING,
TMUOM TYPE STRING,
CHPPC TYPE STRING,
CHPTM TYPE STRING,
CHPVP TYPE STRING,
CHPVT TYPE STRING,
RQSCF TYPE STRING,
INTLV TYPE STRING,
HU_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PACKKP_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_PACKKP_STR-MANDT sy-vline 
WA_PACKKP_STR-PACKNR sy-vline 
WA_PACKKP_STR-HDCOUNT sy-vline 
WA_PACKKP_STR-POBJID sy-vline 
WA_PACKKP_STR-PACKTYP sy-vline 
WA_PACKKP_STR-PARTID sy-vline 
WA_PACKKP_STR-HEIGHT sy-vline 
WA_PACKKP_STR-WIDTH sy-vline 
WA_PACKKP_STR-LENGTH sy-vline 
WA_PACKKP_STR-IHEIGHT sy-vline 
WA_PACKKP_STR-IWIDTH sy-vline 
WA_PACKKP_STR-ILENGTH sy-vline 
WA_PACKKP_STR-UNITDIM sy-vline 
WA_PACKKP_STR-SIZEFIX sy-vline 
WA_PACKKP_STR-TOTLVOL sy-vline 
WA_PACKKP_STR-LOADVOL sy-vline 
WA_PACKKP_STR-ALLOVOL sy-vline 
WA_PACKKP_STR-UNITVOL_MAX sy-vline 
WA_PACKKP_STR-TAREVOL sy-vline 
WA_PACKKP_STR-UNITVOL sy-vline 
WA_PACKKP_STR-VOLUMFIX sy-vline 
WA_PACKKP_STR-TOLEVOL sy-vline 
WA_PACKKP_STR-INDCLOPA sy-vline 
WA_PACKKP_STR-TOTLWEI sy-vline 
WA_PACKKP_STR-LOADWEI sy-vline 
WA_PACKKP_STR-ALLOWEI sy-vline 
WA_PACKKP_STR-UNITWEI_MAX sy-vline 
WA_PACKKP_STR-TAREWEI sy-vline 
WA_PACKKP_STR-UNITWEI sy-vline 
WA_PACKKP_STR-WEIGHTFIX sy-vline 
WA_PACKKP_STR-TOLEWEI sy-vline 
WA_PACKKP_STR-MAXSTWE sy-vline 
WA_PACKKP_STR-STFAC sy-vline 
WA_PACKKP_STR-CRDAT sy-vline 
WA_PACKKP_STR-CRNAM sy-vline 
WA_PACKKP_STR-CHDAT sy-vline 
WA_PACKKP_STR-CHTIM sy-vline 
WA_PACKKP_STR-CHNAM sy-vline 
WA_PACKKP_STR-POBJST sy-vline 
WA_PACKKP_STR-SHIPLABEL sy-vline 
WA_PACKKP_STR-MAPACO_ITEM sy-vline 
WA_PACKKP_STR-INDDEL sy-vline 
WA_PACKKP_STR-CHECKPROF sy-vline 
WA_PACKKP_STR-VEGR1 sy-vline 
WA_PACKKP_STR-VEGR2 sy-vline 
WA_PACKKP_STR-VEGR3 sy-vline 
WA_PACKKP_STR-VEGR4 sy-vline 
WA_PACKKP_STR-VEGR5 sy-vline 
WA_PACKKP_STR-LGNUM sy-vline 
WA_PACKKP_STR-STDTM sy-vline 
WA_PACKKP_STR-VTMRT sy-vline 
WA_PACKKP_STR-EXEMT sy-vline 
WA_PACKKP_STR-DSPTX sy-vline 
WA_PACKKP_STR-ACTSQ sy-vline 
WA_PACKKP_STR-HDRWC sy-vline 
WA_PACKKP_STR-BILLP sy-vline 
WA_PACKKP_STR-SHIPP sy-vline 
WA_PACKKP_STR-VENDR sy-vline 
WA_PACKKP_STR-PURIR sy-vline 
WA_PACKKP_STR-PIRTX sy-vline 
WA_PACKKP_STR-AGRMT sy-vline 
WA_PACKKP_STR-AGRTX sy-vline 
WA_PACKKP_STR-SMTNR sy-vline 
WA_PACKKP_STR-TMUOM sy-vline 
WA_PACKKP_STR-CHPPC sy-vline 
WA_PACKKP_STR-CHPTM sy-vline 
WA_PACKKP_STR-CHPVP sy-vline 
WA_PACKKP_STR-CHPVT sy-vline 
WA_PACKKP_STR-RQSCF sy-vline 
WA_PACKKP_STR-INTLV sy-vline 
WA_PACKKP_STR-HU_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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