ABAP Select data from SAP table POBJPO_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP POBJPO_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 POBJPO_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 POBJPO_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_POBJPO_DATA TYPE STANDARD TABLE OF POBJPO_DATA,
      WA_POBJPO_DATA TYPE POBJPO_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: <POBJPO_DATA> TYPE POBJPO_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POBJPO_DATA
*  INTO TABLE @DATA(IT_POBJPO_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_POBJPO_DATA INDEX 1 INTO DATA(WA_POBJPO_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POBJPO_DATA>-DETAIL_ITEMTYPE = 1.
<POBJPO_DATA>-MATNR = 1.
<POBJPO_DATA>-CLASS = 1.
<POBJPO_DATA>-SUBPOBJID = 1.
<POBJPO_DATA>-CONTENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POBJPO_DATA-TRGQTY, sy-vline,
  WA_POBJPO_DATA-MINQTY, sy-vline,
  WA_POBJPO_DATA-RNDQTY, sy-vline,
  WA_POBJPO_DATA-BASEUNIT, sy-vline,
  WA_POBJPO_DATA-UNITQTY, sy-vline,
  WA_POBJPO_DATA-MATMIXAWD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POBJPO_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_POBJPO_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_POBJPO_DATA INTO WA_POBJPO_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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_POBJPO_DATA-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POBJPO_DATA-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field UNITQTY
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_POBJPO_DATA-UNITQTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POBJPO_DATA-UNITQTY.
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_POBJPO_DATA_STR, 
DETAIL_ITEMTYPE TYPE STRING,
MATNR TYPE STRING,
CLASS TYPE STRING,
SUBPOBJID TYPE STRING,
CONTENT TYPE STRING,
TRGQTY TYPE STRING,
MINQTY TYPE STRING,
RNDQTY TYPE STRING,
BASEUNIT TYPE STRING,
UNITQTY TYPE STRING,
MATMIXAWD TYPE STRING,
INDCHMIX TYPE STRING,
INDMAPACO TYPE STRING,
INDFILLUP TYPE STRING,
INDNRELFU TYPE STRING,
INDNOHU TYPE STRING,
XCOORD TYPE STRING,
YCOORD TYPE STRING,
ZCOORD TYPE STRING,
GRPID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POBJPO_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_POBJPO_DATA_STR-DETAIL_ITEMTYPE sy-vline 
WA_POBJPO_DATA_STR-MATNR sy-vline 
WA_POBJPO_DATA_STR-CLASS sy-vline 
WA_POBJPO_DATA_STR-SUBPOBJID sy-vline 
WA_POBJPO_DATA_STR-CONTENT sy-vline 
WA_POBJPO_DATA_STR-TRGQTY sy-vline 
WA_POBJPO_DATA_STR-MINQTY sy-vline 
WA_POBJPO_DATA_STR-RNDQTY sy-vline 
WA_POBJPO_DATA_STR-BASEUNIT sy-vline 
WA_POBJPO_DATA_STR-UNITQTY sy-vline 
WA_POBJPO_DATA_STR-MATMIXAWD sy-vline 
WA_POBJPO_DATA_STR-INDCHMIX sy-vline 
WA_POBJPO_DATA_STR-INDMAPACO sy-vline 
WA_POBJPO_DATA_STR-INDFILLUP sy-vline 
WA_POBJPO_DATA_STR-INDNRELFU sy-vline 
WA_POBJPO_DATA_STR-INDNOHU sy-vline 
WA_POBJPO_DATA_STR-XCOORD sy-vline 
WA_POBJPO_DATA_STR-YCOORD sy-vline 
WA_POBJPO_DATA_STR-ZCOORD sy-vline 
WA_POBJPO_DATA_STR-GRPID sy-vline      INTO ld_text SEPARATED BY SPACE.

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