ABAP Select data from SAP table POBJKP_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POBJKP_DATA
*  INTO TABLE @DATA(IT_POBJKP_DATA2).
*--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_POBJKP_DATA INDEX 1 INTO DATA(WA_POBJKP_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POBJKP_DATA>-PROP_PIID = 1.
<POBJKP_DATA>-CONTENT = 1.
<POBJKP_DATA>-PARTID = 1.
<POBJKP_DATA>-HEIGHT = 1.
<POBJKP_DATA>-WIDTH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POBJKP_DATA-LENGTH, sy-vline,
  WA_POBJKP_DATA-IHEIGHT, sy-vline,
  WA_POBJKP_DATA-IWIDTH, sy-vline,
  WA_POBJKP_DATA-ILENGTH, sy-vline,
  WA_POBJKP_DATA-UNITDIM, sy-vline,
  WA_POBJKP_DATA-SIZEFIX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POBJKP_DATA 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_POBJKP_DATA 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_POBJKP_DATA INTO WA_POBJKP_DATA.


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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field UNITWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_POBJKP_DATA-UNITWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POBJKP_DATA-UNITWEI.
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_POBJKP_DATA_STR, 
PROP_PIID TYPE STRING,
CONTENT 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,
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,
INDCLOPA TYPE STRING,
CHECKPROF TYPE STRING,
VEGR1 TYPE STRING,
VEGR2 TYPE STRING,
VEGR3 TYPE STRING,
VEGR4 TYPE STRING,
VEGR5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POBJKP_DATA_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_POBJKP_DATA_STR-PROP_PIID sy-vline 
WA_POBJKP_DATA_STR-CONTENT sy-vline 
WA_POBJKP_DATA_STR-PARTID sy-vline 
WA_POBJKP_DATA_STR-HEIGHT sy-vline 
WA_POBJKP_DATA_STR-WIDTH sy-vline 
WA_POBJKP_DATA_STR-LENGTH sy-vline 
WA_POBJKP_DATA_STR-IHEIGHT sy-vline 
WA_POBJKP_DATA_STR-IWIDTH sy-vline 
WA_POBJKP_DATA_STR-ILENGTH sy-vline 
WA_POBJKP_DATA_STR-UNITDIM sy-vline 
WA_POBJKP_DATA_STR-SIZEFIX sy-vline 
WA_POBJKP_DATA_STR-TOTLVOL sy-vline 
WA_POBJKP_DATA_STR-LOADVOL sy-vline 
WA_POBJKP_DATA_STR-ALLOVOL sy-vline 
WA_POBJKP_DATA_STR-UNITVOL_MAX sy-vline 
WA_POBJKP_DATA_STR-TAREVOL sy-vline 
WA_POBJKP_DATA_STR-UNITVOL sy-vline 
WA_POBJKP_DATA_STR-VOLUMFIX sy-vline 
WA_POBJKP_DATA_STR-TOLEVOL sy-vline 
WA_POBJKP_DATA_STR-TOTLWEI sy-vline 
WA_POBJKP_DATA_STR-LOADWEI sy-vline 
WA_POBJKP_DATA_STR-ALLOWEI sy-vline 
WA_POBJKP_DATA_STR-UNITWEI_MAX sy-vline 
WA_POBJKP_DATA_STR-TAREWEI sy-vline 
WA_POBJKP_DATA_STR-UNITWEI sy-vline 
WA_POBJKP_DATA_STR-WEIGHTFIX sy-vline 
WA_POBJKP_DATA_STR-TOLEWEI sy-vline 
WA_POBJKP_DATA_STR-MAXSTWE sy-vline 
WA_POBJKP_DATA_STR-STFAC sy-vline 
WA_POBJKP_DATA_STR-CRDAT sy-vline 
WA_POBJKP_DATA_STR-CRNAM sy-vline 
WA_POBJKP_DATA_STR-CHDAT sy-vline 
WA_POBJKP_DATA_STR-CHTIM sy-vline 
WA_POBJKP_DATA_STR-CHNAM sy-vline 
WA_POBJKP_DATA_STR-POBJST sy-vline 
WA_POBJKP_DATA_STR-SHIPLABEL sy-vline 
WA_POBJKP_DATA_STR-INDCLOPA sy-vline 
WA_POBJKP_DATA_STR-CHECKPROF sy-vline 
WA_POBJKP_DATA_STR-VEGR1 sy-vline 
WA_POBJKP_DATA_STR-VEGR2 sy-vline 
WA_POBJKP_DATA_STR-VEGR3 sy-vline 
WA_POBJKP_DATA_STR-VEGR4 sy-vline 
WA_POBJKP_DATA_STR-VEGR5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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