ABAP Select data from SAP table IPTDIGITALSIG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPTDIGITALSIG
*  INTO TABLE @DATA(IT_IPTDIGITALSIG2).
*--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_IPTDIGITALSIG INDEX 1 INTO DATA(WA_IPTDIGITALSIG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPTDIGITALSIG>-MANDT = 1.
<IPTDIGITALSIG>-DELIVERYDOCUMENT = 1.
<IPTDIGITALSIG>-REFPURDOCNMBR = 1.
<IPTDIGITALSIG>-COMPANYCODE = 1.
<IPTDIGITALSIG>-NUMBERRANGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPTDIGITALSIG-SDDOCUMENTTYPE, sy-vline,
  WA_IPTDIGITALSIG-TIMESERIESSOURCEDESCRIPTION, sy-vline,
  WA_IPTDIGITALSIG-DELIVERYDATE, sy-vline,
  WA_IPTDIGITALSIG-METERREADINGSYSTEMDATE, sy-vline,
  WA_IPTDIGITALSIG-PORTUGUESEDELIVERYNUMBER, sy-vline,
  WA_IPTDIGITALSIG-SCALEDTOTALGROSSAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPTDIGITALSIG 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_IPTDIGITALSIG 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_IPTDIGITALSIG INTO WA_IPTDIGITALSIG.


*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 DELIVERYDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPTDIGITALSIG-DELIVERYDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPTDIGITALSIG-DELIVERYDOCUMENT.
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_IPTDIGITALSIG_STR, 
MANDT TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
REFPURDOCNMBR TYPE STRING,
COMPANYCODE TYPE STRING,
NUMBERRANGE TYPE STRING,
SDDOCUMENTTYPE TYPE STRING,
TIMESERIESSOURCEDESCRIPTION TYPE STRING,
DELIVERYDATE TYPE STRING,
METERREADINGSYSTEMDATE TYPE STRING,
PORTUGUESEDELIVERYNUMBER TYPE STRING,
SCALEDTOTALGROSSAMOUNT TYPE STRING,
PREVGRIRCLRGPROCPRIORITY TYPE STRING,
DIGITALSIGNATUREISREQUIRED TYPE STRING,
PORTUGUESESGNTRCERTIFICATE TYPE STRING,
ENCRYPTIONTYPE TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
INSPLOTSTATUSCANCELED TYPE STRING,
PORTUGUESEDIGITALSIGNATURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPTDIGITALSIG_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_IPTDIGITALSIG_STR-MANDT sy-vline 
WA_IPTDIGITALSIG_STR-DELIVERYDOCUMENT sy-vline 
WA_IPTDIGITALSIG_STR-REFPURDOCNMBR sy-vline 
WA_IPTDIGITALSIG_STR-COMPANYCODE sy-vline 
WA_IPTDIGITALSIG_STR-NUMBERRANGE sy-vline 
WA_IPTDIGITALSIG_STR-SDDOCUMENTTYPE sy-vline 
WA_IPTDIGITALSIG_STR-TIMESERIESSOURCEDESCRIPTION sy-vline 
WA_IPTDIGITALSIG_STR-DELIVERYDATE sy-vline 
WA_IPTDIGITALSIG_STR-METERREADINGSYSTEMDATE sy-vline 
WA_IPTDIGITALSIG_STR-PORTUGUESEDELIVERYNUMBER sy-vline 
WA_IPTDIGITALSIG_STR-SCALEDTOTALGROSSAMOUNT sy-vline 
WA_IPTDIGITALSIG_STR-PREVGRIRCLRGPROCPRIORITY sy-vline 
WA_IPTDIGITALSIG_STR-DIGITALSIGNATUREISREQUIRED sy-vline 
WA_IPTDIGITALSIG_STR-PORTUGUESESGNTRCERTIFICATE sy-vline 
WA_IPTDIGITALSIG_STR-ENCRYPTIONTYPE sy-vline 
WA_IPTDIGITALSIG_STR-CREATIONDATE sy-vline 
WA_IPTDIGITALSIG_STR-CREATIONTIME sy-vline 
WA_IPTDIGITALSIG_STR-INSPLOTSTATUSCANCELED sy-vline 
WA_IPTDIGITALSIG_STR-PORTUGUESEDIGITALSIGNATURE sy-vline      INTO ld_text SEPARATED BY SPACE.

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