ABAP Select data from SAP table IPRODSPEC into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IPRODSPEC 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 IPRODSPEC. 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 IPRODSPEC 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_IPRODSPEC TYPE STANDARD TABLE OF IPRODSPEC,
      WA_IPRODSPEC TYPE IPRODSPEC,
      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: <IPRODSPEC> TYPE IPRODSPEC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPRODSPEC
*  INTO TABLE @DATA(IT_IPRODSPEC2).
*--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_IPRODSPEC INDEX 1 INTO DATA(WA_IPRODSPEC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPRODSPEC>-MANDT = 1.
<IPRODSPEC>-PRODUCTSPECIFICATIONINTERNALID = 1.
<IPRODSPEC>-PRODUCTSPECIFICATIONCHGSTATE = 1.
<IPRODSPEC>-PRODUCTSPECIFICATION = 1.
<IPRODSPEC>-PRODSPECVALIDITYSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPRODSPEC-PRODSPECVALIDITYENDDATE, sy-vline,
  WA_IPRODSPEC-CHANGENUMBER, sy-vline,
  WA_IPRODSPEC-PRODSPECCREATEDBYUSER, sy-vline,
  WA_IPRODSPEC-PRODSPECCREATIONDATE, sy-vline,
  WA_IPRODSPEC-PRODSPECLASTCHANGEDBYUSER, sy-vline,
  WA_IPRODSPEC-PRODSPECLASTCHANGEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPRODSPEC 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_IPRODSPEC 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_IPRODSPEC INTO WA_IPRODSPEC.


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

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

*Conversion exit ALPHA, internal->external for field CHANGENUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPRODSPEC-CHANGENUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRODSPEC-CHANGENUMBER.
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_IPRODSPEC_STR, 
MANDT TYPE STRING,
PRODUCTSPECIFICATIONINTERNALID TYPE STRING,
PRODUCTSPECIFICATIONCHGSTATE TYPE STRING,
PRODUCTSPECIFICATION TYPE STRING,
PRODSPECVALIDITYSTARTDATE TYPE STRING,
PRODSPECVALIDITYENDDATE TYPE STRING,
CHANGENUMBER TYPE STRING,
PRODSPECCREATEDBYUSER TYPE STRING,
PRODSPECCREATIONDATE TYPE STRING,
PRODSPECLASTCHANGEDBYUSER TYPE STRING,
PRODSPECLASTCHANGEDATE TYPE STRING,
PRODSPECNOTE TYPE STRING,
PRODSPECISDELETED TYPE STRING,
PRODSPECTYPE TYPE STRING,
PRODSPECAUTHZNGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPRODSPEC_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_IPRODSPEC_STR-MANDT sy-vline 
WA_IPRODSPEC_STR-PRODUCTSPECIFICATIONINTERNALID sy-vline 
WA_IPRODSPEC_STR-PRODUCTSPECIFICATIONCHGSTATE sy-vline 
WA_IPRODSPEC_STR-PRODUCTSPECIFICATION sy-vline 
WA_IPRODSPEC_STR-PRODSPECVALIDITYSTARTDATE sy-vline 
WA_IPRODSPEC_STR-PRODSPECVALIDITYENDDATE sy-vline 
WA_IPRODSPEC_STR-CHANGENUMBER sy-vline 
WA_IPRODSPEC_STR-PRODSPECCREATEDBYUSER sy-vline 
WA_IPRODSPEC_STR-PRODSPECCREATIONDATE sy-vline 
WA_IPRODSPEC_STR-PRODSPECLASTCHANGEDBYUSER sy-vline 
WA_IPRODSPEC_STR-PRODSPECLASTCHANGEDATE sy-vline 
WA_IPRODSPEC_STR-PRODSPECNOTE sy-vline 
WA_IPRODSPEC_STR-PRODSPECISDELETED sy-vline 
WA_IPRODSPEC_STR-PRODSPECTYPE sy-vline 
WA_IPRODSPEC_STR-PRODSPECAUTHZNGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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