ABAP Select data from SAP table /ASU/CONTENTNT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ASU/CONTENTNT 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 /ASU/CONTENTNT. 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 /ASU/CONTENTNT 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_/ASU/CONTENTNT TYPE STANDARD TABLE OF /ASU/CONTENTNT,
      WA_/ASU/CONTENTNT TYPE /ASU/CONTENTNT,
      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: </ASU/CONTENTNT> TYPE /ASU/CONTENTNT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ASU/CONTENTNT
  INTO TABLE IT_/ASU/CONTENTNT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ASU/CONTENTNT
*  INTO TABLE @DATA(IT_/ASU/CONTENTNT2).
*--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_/ASU/CONTENTNT INDEX 1 INTO DATA(WA_/ASU/CONTENTNT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ASU/CONTENTNT ASSIGNING </ASU/CONTENTNT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ASU/CONTENTNT>-SCENARIO = 1.
</ASU/CONTENTNT>-VERSION = 1.
</ASU/CONTENTNT>-GUID = 1.
</ASU/CONTENTNT>-LANGU = 1.
</ASU/CONTENTNT>-DESCRIPTION = 1.

ENDLOOP.

LOOP AT IT_/ASU/CONTENTNT INTO WA_/ASU/CONTENTNT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ASU/CONTENTNT-DESCR_FILENAME, sy-vline,
  WA_/ASU/CONTENTNT-DESCR_MIMETYPE, sy-vline,
  WA_/ASU/CONTENTNT-BDS_DOC_ID, sy-vline,
  WA_/ASU/CONTENTNT-LEN_DESCR_L, sy-vline,
  WA_/ASU/CONTENTNT-DESCRIPTION_L, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_/ASU/CONTENTNT 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_/ASU/CONTENTNT 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_/ASU/CONTENTNT INTO WA_/ASU/CONTENTNT.


*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 LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/ASU/CONTENTNT-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ASU/CONTENTNT-LANGU.
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_/ASU/CONTENTNT_STR, 
SCENARIO TYPE STRING,
VERSION TYPE STRING,
GUID TYPE STRING,
LANGU TYPE STRING,
DESCRIPTION TYPE STRING,
DESCR_FILENAME TYPE STRING,
DESCR_MIMETYPE TYPE STRING,
BDS_DOC_ID TYPE STRING,
LEN_DESCR_L TYPE STRING,
DESCRIPTION_L TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ASU/CONTENTNT_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_/ASU/CONTENTNT_STR-SCENARIO sy-vline 
WA_/ASU/CONTENTNT_STR-VERSION sy-vline 
WA_/ASU/CONTENTNT_STR-GUID sy-vline 
WA_/ASU/CONTENTNT_STR-LANGU sy-vline 
WA_/ASU/CONTENTNT_STR-DESCRIPTION sy-vline 
WA_/ASU/CONTENTNT_STR-DESCR_FILENAME sy-vline 
WA_/ASU/CONTENTNT_STR-DESCR_MIMETYPE sy-vline 
WA_/ASU/CONTENTNT_STR-BDS_DOC_ID sy-vline 
WA_/ASU/CONTENTNT_STR-LEN_DESCR_L sy-vline 
WA_/ASU/CONTENTNT_STR-DESCRIPTION_L sy-vline      INTO ld_text SEPARATED BY SPACE.

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