ABAP Select data from SAP table ISSCRL_LIBRARY_TP_DR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSCRL_LIBRARY_TP_DR
*  INTO TABLE @DATA(IT_ISSCRL_LIBRARY_TP_DR2).
*--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_ISSCRL_LIBRARY_TP_DR INDEX 1 INTO DATA(WA_ISSCRL_LIBRARY_TP_DR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSCRL_LIBRARY_TP_DR>-DRAFTUUID = 1.
<ISSCRL_LIBRARY_TP_DR>-LIBRARYID = 1.
<ISSCRL_LIBRARY_TP_DR>-VERSIONNUMBER = 1.
<ISSCRL_LIBRARY_TP_DR>-NAME = 1.
<ISSCRL_LIBRARY_TP_DR>-PUBLISHSTATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSCRL_LIBRARY_TP_DR-ORIGINALLANGUAGE, sy-vline,
  WA_ISSCRL_LIBRARY_TP_DR-ORIGINALRELEASE, sy-vline,
  WA_ISSCRL_LIBRARY_TP_DR-CREATEDBY, sy-vline,
  WA_ISSCRL_LIBRARY_TP_DR-CREATEDON, sy-vline,
  WA_ISSCRL_LIBRARY_TP_DR-LASTCHANGEDBY, sy-vline,
  WA_ISSCRL_LIBRARY_TP_DR-LASTCHANGEDON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSCRL_LIBRARY_TP_DR 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_ISSCRL_LIBRARY_TP_DR 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_ISSCRL_LIBRARY_TP_DR INTO WA_ISSCRL_LIBRARY_TP_DR.


*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 ISOLA, internal->external for field ORIGINALLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISSCRL_LIBRARY_TP_DR-ORIGINALLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSCRL_LIBRARY_TP_DR-ORIGINALLANGUAGE.
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_ISSCRL_LIBRARY_TP_DR_STR, 
DRAFTUUID TYPE STRING,
LIBRARYID TYPE STRING,
VERSIONNUMBER TYPE STRING,
NAME TYPE STRING,
PUBLISHSTATE TYPE STRING,
ORIGINALLANGUAGE TYPE STRING,
ORIGINALRELEASE TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDON TYPE STRING,
LASTCHANGEDBY TYPE STRING,
LASTCHANGEDON TYPE STRING,
IMPLEMENTATIONCLASS TYPE STRING,
ETAG 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_ISSCRL_LIBRARY_TP_DR_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_ISSCRL_LIBRARY_TP_DR_STR-DRAFTUUID sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-LIBRARYID sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-VERSIONNUMBER sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-NAME sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-PUBLISHSTATE sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-ORIGINALLANGUAGE sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-ORIGINALRELEASE sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-CREATEDBY sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-CREATEDON sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-LASTCHANGEDBY sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-LASTCHANGEDON sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-IMPLEMENTATIONCLASS sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-ETAG sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-HASACTIVEENTITY sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISSCRL_LIBRARY_TP_DR_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.