ABAP Select data from SAP table ISSGBT_NTE_CDS_APITP_DR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISSGBT_NTE_CDS_APITP_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 ISSGBT_NTE_CDS_APITP_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 ISSGBT_NTE_CDS_APITP_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_ISSGBT_NTE_CDS_APITP_DR TYPE STANDARD TABLE OF ISSGBT_NTE_CDS_APITP_DR,
      WA_ISSGBT_NTE_CDS_APITP_DR TYPE ISSGBT_NTE_CDS_APITP_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: <ISSGBT_NTE_CDS_APITP_DR> TYPE ISSGBT_NTE_CDS_APITP_DR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSGBT_NTE_CDS_APITP_DR
*  INTO TABLE @DATA(IT_ISSGBT_NTE_CDS_APITP_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_ISSGBT_NTE_CDS_APITP_DR INDEX 1 INTO DATA(WA_ISSGBT_NTE_CDS_APITP_DR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSGBT_NTE_CDS_APITP_DR>-NOTEID = 1.
<ISSGBT_NTE_CDS_APITP_DR>-OBJECTNODETYPE = 1.
<ISSGBT_NTE_CDS_APITP_DR>-OBJECTID = 1.
<ISSGBT_NTE_CDS_APITP_DR>-NOTETYPE = 1.
<ISSGBT_NTE_CDS_APITP_DR>-LANGU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSGBT_NTE_CDS_APITP_DR-TITLE, sy-vline,
  WA_ISSGBT_NTE_CDS_APITP_DR-MIMETYPE, sy-vline,
  WA_ISSGBT_NTE_CDS_APITP_DR-LENGTH, sy-vline,
  WA_ISSGBT_NTE_CDS_APITP_DR-CREATOR, sy-vline,
  WA_ISSGBT_NTE_CDS_APITP_DR-CREATED, sy-vline,
  WA_ISSGBT_NTE_CDS_APITP_DR-CHANGER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSGBT_NTE_CDS_APITP_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_ISSGBT_NTE_CDS_APITP_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_ISSGBT_NTE_CDS_APITP_DR INTO WA_ISSGBT_NTE_CDS_APITP_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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ISSGBT_NTE_CDS_APITP_DR_STR, 
NOTEID TYPE STRING,
OBJECTNODETYPE TYPE STRING,
OBJECTID TYPE STRING,
NOTETYPE TYPE STRING,
LANGU TYPE STRING,
TITLE TYPE STRING,
MIMETYPE TYPE STRING,
LENGTH TYPE STRING,
CREATOR TYPE STRING,
CREATED TYPE STRING,
CHANGER TYPE STRING,
CHANGED TYPE STRING,
CONTENT TYPE STRING,
DP_ITEM_KEY TYPE STRING,
READONLY 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_ISSGBT_NTE_CDS_APITP_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_ISSGBT_NTE_CDS_APITP_DR_STR-NOTEID sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-OBJECTNODETYPE sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-OBJECTID sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-NOTETYPE sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-LANGU sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-TITLE sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-MIMETYPE sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-LENGTH sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-CREATOR sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-CREATED sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-CHANGER sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-CHANGED sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-CONTENT sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-DP_ITEM_KEY sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-READONLY sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-ACTIVEUUID sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-HASACTIVEENTITY sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISSGBT_NTE_CDS_APITP_DR_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISSGBT_NTE_CDS_APITP_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.