ABAP Select data from SAP table PMMO_PEG_REPORT_HIER_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMO_PEG_REPORT_HIER_ITEM
*  INTO TABLE @DATA(IT_PMMO_PEG_REPORT_HIER_ITEM2).
*--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_PMMO_PEG_REPORT_HIER_ITEM INDEX 1 INTO DATA(WA_PMMO_PEG_REPORT_HIER_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMO_PEG_REPORT_HIER_ITEM>-PSPNR_ASSGD = 1.
<PMMO_PEG_REPORT_HIER_ITEM>-INSTK_TEXT = 1.
<PMMO_PEG_REPORT_HIER_ITEM>-INSTK = 1.
<PMMO_PEG_REPORT_HIER_ITEM>-ASSGDQTY = 1.
<PMMO_PEG_REPORT_HIER_ITEM>-XSSQTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMO_PEG_REPORT_HIER_ITEM-SCPQTY, sy-vline,
  WA_PMMO_PEG_REPORT_HIER_ITEM-LQTY, sy-vline,
  WA_PMMO_PEG_REPORT_HIER_ITEM-MEINS, sy-vline,
  WA_PMMO_PEG_REPORT_HIER_ITEM-WERKS, sy-vline,
  WA_PMMO_PEG_REPORT_HIER_ITEM-GRPNR_AA, sy-vline,
  WA_PMMO_PEG_REPORT_HIER_ITEM-GRPNR_STK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMO_PEG_REPORT_HIER_ITEM 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_PMMO_PEG_REPORT_HIER_ITEM 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_PMMO_PEG_REPORT_HIER_ITEM INTO WA_PMMO_PEG_REPORT_HIER_ITEM.


*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 ABPSP, internal->external for field PSPNR_ASSGD
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_PEG_REPORT_HIER_ITEM-PSPNR_ASSGD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_PEG_REPORT_HIER_ITEM-PSPNR_ASSGD.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field GRPNR_AA
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_PEG_REPORT_HIER_ITEM-GRPNR_AA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_PEG_REPORT_HIER_ITEM-GRPNR_AA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field GRPNR_STK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_PEG_REPORT_HIER_ITEM-GRPNR_STK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_PEG_REPORT_HIER_ITEM-GRPNR_STK.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_PEG_REPORT_HIER_ITEM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_PEG_REPORT_HIER_ITEM-MATNR.
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_PMMO_PEG_REPORT_HIER_ITEM_STR, 
PSPNR_ASSGD TYPE STRING,
INSTK_TEXT TYPE STRING,
INSTK TYPE STRING,
ASSGDQTY TYPE STRING,
XSSQTY TYPE STRING,
SCPQTY TYPE STRING,
LQTY TYPE STRING,
MEINS TYPE STRING,
WERKS TYPE STRING,
GRPNR_AA TYPE STRING,
GRPNR_STK TYPE STRING,
OBJ_TYPE_NHA TYPE STRING,
REPOBJ_NHA TYPE STRING,
REPOBJ_NHA_DISPLAY TYPE STRING,
OBJ_TYPE_TOP TYPE STRING,
RQMTOBJ_TOP TYPE STRING,
RQMTOBJ_TOP_DISPLAY TYPE STRING,
OBJ_TYPE_BRK TYPE STRING,
OBJNR_BRK TYPE STRING,
OBJNR_BRK_DISPLAY TYPE STRING,
RQMTQTY_TOP TYPE STRING,
RQMTQTY_TOP_UOM TYPE STRING,
MATNR TYPE STRING,
REPOBJ TYPE STRING,
BERID TYPE STRING,
LEADING_COLL_ORDER TYPE STRING,
OBJ_TYPE_LEAD TYPE STRING,
REPOBJ_LEAD_DISPLAY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMO_PEG_REPORT_HIER_ITEM_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_PMMO_PEG_REPORT_HIER_ITEM_STR-PSPNR_ASSGD sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-INSTK_TEXT sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-INSTK sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-ASSGDQTY sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-XSSQTY sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-SCPQTY sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-LQTY sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-MEINS sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-WERKS sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-GRPNR_AA sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-GRPNR_STK sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-OBJ_TYPE_NHA sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-REPOBJ_NHA sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-REPOBJ_NHA_DISPLAY sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-OBJ_TYPE_TOP sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-RQMTOBJ_TOP sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-RQMTOBJ_TOP_DISPLAY sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-OBJ_TYPE_BRK sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-OBJNR_BRK sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-OBJNR_BRK_DISPLAY sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-RQMTQTY_TOP sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-RQMTQTY_TOP_UOM sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-MATNR sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-REPOBJ sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-BERID sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-LEADING_COLL_ORDER sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-OBJ_TYPE_LEAD sy-vline 
WA_PMMO_PEG_REPORT_HIER_ITEM_STR-REPOBJ_LEAD_DISPLAY sy-vline      INTO ld_text SEPARATED BY SPACE.

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