ABAP Select data from SAP table ISSUBSCRPNPRODSPECTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSUBSCRPNPRODSPECTP
*  INTO TABLE @DATA(IT_ISSUBSCRPNPRODSPECTP2).
*--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_ISSUBSCRPNPRODSPECTP INDEX 1 INTO DATA(WA_ISSUBSCRPNPRODSPECTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSUBSCRPNPRODSPECTP>-KEY = 1.
<ISSUBSCRPNPRODSPECTP>-PARENT_KEY = 1.
<ISSUBSCRPNPRODSPECTP>-ROOT_KEY = 1.
<ISSUBSCRPNPRODSPECTP>-CREATEDBYUSER = 1.
<ISSUBSCRPNPRODSPECTP>-CREATIONDATETIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSUBSCRPNPRODSPECTP-LASTCHANGEDBYUSER, sy-vline,
  WA_ISSUBSCRPNPRODSPECTP-LASTCHANGEDATETIME, sy-vline,
  WA_ISSUBSCRPNPRODSPECTP-PRODUCT, sy-vline,
  WA_ISSUBSCRPNPRODSPECTP-PRODUCTUUID, sy-vline,
  WA_ISSUBSCRPNPRODSPECTP-PRODUCTTYPE, sy-vline,
  WA_ISSUBSCRPNPRODSPECTP-PRODUCTGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSUBSCRPNPRODSPECTP 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_ISSUBSCRPNPRODSPECTP 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_ISSUBSCRPNPRODSPECTP INTO WA_ISSUBSCRPNPRODSPECTP.


*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 PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISSUBSCRPNPRODSPECTP-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSUBSCRPNPRODSPECTP-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISSUBSCRPNPRODSPECTP-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSUBSCRPNPRODSPECTP-BASEUNIT.
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_ISSUBSCRPNPRODSPECTP_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PRODUCT TYPE STRING,
PRODUCTUUID TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTGROUP TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
SUBSCRPNPRODTECHRSCESCHEMA TYPE STRING,
PRODUCTISCONFIGURABLE TYPE STRING,
BASEUNIT TYPE STRING,
CABILLGCYCLE TYPE STRING,
SUBSCRPNPRODBILLGCYCDETN TYPE STRING,
SUBSCRIPTIONPRODUCTPURPOSE TYPE STRING,
CONTRACTAUTORENEWALTYPE TYPE STRING,
SUBSCRPNPRODTECHRSCEISACTIVE TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSUBSCRPNPRODSPECTP_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_ISSUBSCRPNPRODSPECTP_STR-KEY sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-PARENT_KEY sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-ROOT_KEY sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-CREATEDBYUSER sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-CREATIONDATETIME sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-LASTCHANGEDATETIME sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-PRODUCT sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-PRODUCTUUID sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-PRODUCTTYPE sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-PRODUCTGROUP sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-AUTHORIZATIONGROUP sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-SUBSCRPNPRODTECHRSCESCHEMA sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-PRODUCTISCONFIGURABLE sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-BASEUNIT sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-CABILLGCYCLE sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-SUBSCRPNPRODBILLGCYCDETN sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-SUBSCRIPTIONPRODUCTPURPOSE sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-CONTRACTAUTORENEWALTYPE sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-SUBSCRPNPRODTECHRSCEISACTIVE sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-ACTIVEUUID sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-HASACTIVEENTITY sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISSUBSCRPNPRODSPECTP_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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