ABAP Select data from SAP table ISM_DPAM_PACKAGE_TYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISM_DPAM_PACKAGE_TYPE
*  INTO TABLE @DATA(IT_ISM_DPAM_PACKAGE_TYPE2).
*--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_ISM_DPAM_PACKAGE_TYPE INDEX 1 INTO DATA(WA_ISM_DPAM_PACKAGE_TYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISM_DPAM_PACKAGE_TYPE>-CONTROLLER = 1.
<ISM_DPAM_PACKAGE_TYPE>-GWM = 1.
<ISM_DPAM_PACKAGE_TYPE>-CONTROLLER = 1.
<ISM_DPAM_PACKAGE_TYPE>-VALUE = 1.
<ISM_DPAM_PACKAGE_TYPE>-UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISM_DPAM_PACKAGE_TYPE-NWM, sy-vline,
  WA_ISM_DPAM_PACKAGE_TYPE-CONTROLLER, sy-vline,
  WA_ISM_DPAM_PACKAGE_TYPE-VALUE, sy-vline,
  WA_ISM_DPAM_PACKAGE_TYPE-UNIT, sy-vline,
  WA_ISM_DPAM_PACKAGE_TYPE-REF, sy-vline,
  WA_ISM_DPAM_PACKAGE_TYPE-PACKAGE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISM_DPAM_PACKAGE_TYPE 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_ISM_DPAM_PACKAGE_TYPE 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_ISM_DPAM_PACKAGE_TYPE INTO WA_ISM_DPAM_PACKAGE_TYPE.


*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_ISM_DPAM_PACKAGE_TYPE_STR, 
CONTROLLER TYPE STRING,
GWM TYPE STRING,
CONTROLLER TYPE STRING,
VALUE TYPE STRING,
UNIT TYPE STRING,
NWM TYPE STRING,
CONTROLLER TYPE STRING,
VALUE TYPE STRING,
UNIT TYPE STRING,
REF TYPE STRING,
PACKAGE_ID TYPE STRING,
PRODUCT_GROUP TYPE STRING,
FORMAT TYPE STRING,
SORT_METHOD TYPE STRING,
REF_PACKAGE TYPE STRING,
TYPE TYPE STRING,
STACKABLE TYPE STRING,
FRAME_QTY TYPE STRING,
ZIP_DST TYPE STRING,
ZIP_FROM TYPE STRING,
ZIP_TO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISM_DPAM_PACKAGE_TYPE_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_ISM_DPAM_PACKAGE_TYPE_STR-CONTROLLER sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-GWM sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-CONTROLLER sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-VALUE sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-UNIT sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-NWM sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-CONTROLLER sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-VALUE sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-UNIT sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-REF sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-PACKAGE_ID sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-PRODUCT_GROUP sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-FORMAT sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-SORT_METHOD sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-REF_PACKAGE sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-TYPE sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-STACKABLE sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-FRAME_QTY sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-ZIP_DST sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-ZIP_FROM sy-vline 
WA_ISM_DPAM_PACKAGE_TYPE_STR-ZIP_TO sy-vline      INTO ld_text SEPARATED BY SPACE.

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