ABAP Select data from SAP table CNPB_OPTIONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNPB_OPTIONS
*  INTO TABLE @DATA(IT_CNPB_OPTIONS2).
*--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_CNPB_OPTIONS INDEX 1 INTO DATA(WA_CNPB_OPTIONS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNPB_OPTIONS>-PROJECT = 1.
<CNPB_OPTIONS>-VERSION = 1.
<CNPB_OPTIONS>-WBSELEMENT = 1.
<CNPB_OPTIONS>-NETWORK = 1.
<CNPB_OPTIONS>-ACTIVITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNPB_OPTIONS-ELEMENT, sy-vline,
  WA_CNPB_OPTIONS-MATERIAL, sy-vline,
  WA_CNPB_OPTIONS-MILESTONE, sy-vline,
  WA_CNPB_OPTIONS-RELATION, sy-vline,
  WA_CNPB_OPTIONS-PSTEXT, sy-vline,
  WA_CNPB_OPTIONS-DOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNPB_OPTIONS 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_CNPB_OPTIONS 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_CNPB_OPTIONS INTO WA_CNPB_OPTIONS.


*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_CNPB_OPTIONS_STR, 
PROJECT TYPE STRING,
VERSION TYPE STRING,
WBSELEMENT TYPE STRING,
NETWORK TYPE STRING,
ACTIVITY TYPE STRING,
ELEMENT TYPE STRING,
MATERIAL TYPE STRING,
MILESTONE TYPE STRING,
RELATION TYPE STRING,
PSTEXT TYPE STRING,
DOCUMENT TYPE STRING,
NEWOBJECTS TYPE STRING,
OPERATIVES TYPE STRING,
TEMPLATES TYPE STRING,
SIMULATIONS TYPE STRING,
DEFAULTMODE TYPE STRING,
EXPANDLEVEL TYPE STRING,
AUTOLOAD TYPE STRING,
PRESENTATION TYPE STRING,
SHOW_DELETED TYPE STRING,
HIERARCHY_COLUMN TYPE STRING,
SHOW_TOOLBAR TYPE STRING,
READ_MAT_MASTER TYPE STRING,
READ_PO_FOLLOWON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNPB_OPTIONS_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_CNPB_OPTIONS_STR-PROJECT sy-vline 
WA_CNPB_OPTIONS_STR-VERSION sy-vline 
WA_CNPB_OPTIONS_STR-WBSELEMENT sy-vline 
WA_CNPB_OPTIONS_STR-NETWORK sy-vline 
WA_CNPB_OPTIONS_STR-ACTIVITY sy-vline 
WA_CNPB_OPTIONS_STR-ELEMENT sy-vline 
WA_CNPB_OPTIONS_STR-MATERIAL sy-vline 
WA_CNPB_OPTIONS_STR-MILESTONE sy-vline 
WA_CNPB_OPTIONS_STR-RELATION sy-vline 
WA_CNPB_OPTIONS_STR-PSTEXT sy-vline 
WA_CNPB_OPTIONS_STR-DOCUMENT sy-vline 
WA_CNPB_OPTIONS_STR-NEWOBJECTS sy-vline 
WA_CNPB_OPTIONS_STR-OPERATIVES sy-vline 
WA_CNPB_OPTIONS_STR-TEMPLATES sy-vline 
WA_CNPB_OPTIONS_STR-SIMULATIONS sy-vline 
WA_CNPB_OPTIONS_STR-DEFAULTMODE sy-vline 
WA_CNPB_OPTIONS_STR-EXPANDLEVEL sy-vline 
WA_CNPB_OPTIONS_STR-AUTOLOAD sy-vline 
WA_CNPB_OPTIONS_STR-PRESENTATION sy-vline 
WA_CNPB_OPTIONS_STR-SHOW_DELETED sy-vline 
WA_CNPB_OPTIONS_STR-HIERARCHY_COLUMN sy-vline 
WA_CNPB_OPTIONS_STR-SHOW_TOOLBAR sy-vline 
WA_CNPB_OPTIONS_STR-READ_MAT_MASTER sy-vline 
WA_CNPB_OPTIONS_STR-READ_PO_FOLLOWON sy-vline      INTO ld_text SEPARATED BY SPACE.

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