ABAP Select data from SAP table CNPB_TEMPLATE_OBJECT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNPB_TEMPLATE_OBJECT 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_TEMPLATE_OBJECT. 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_TEMPLATE_OBJECT 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_TEMPLATE_OBJECT TYPE STANDARD TABLE OF CNPB_TEMPLATE_OBJECT,
      WA_CNPB_TEMPLATE_OBJECT TYPE CNPB_TEMPLATE_OBJECT,
      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_TEMPLATE_OBJECT> TYPE CNPB_TEMPLATE_OBJECT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNPB_TEMPLATE_OBJECT
*  INTO TABLE @DATA(IT_CNPB_TEMPLATE_OBJECT2).
*--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_TEMPLATE_OBJECT INDEX 1 INTO DATA(WA_CNPB_TEMPLATE_OBJECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNPB_TEMPLATE_OBJECT>-PRONR = 1.
<CNPB_TEMPLATE_OBJECT>-PSPNR = 1.
<CNPB_TEMPLATE_OBJECT>-AUFNR = 1.
<CNPB_TEMPLATE_OBJECT>-AUFPL = 1.
<CNPB_TEMPLATE_OBJECT>-APLZL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNPB_TEMPLATE_OBJECT-MLST_ZAEHL, sy-vline,
  WA_CNPB_TEMPLATE_OBJECT-TXTKY, sy-vline,
  WA_CNPB_TEMPLATE_OBJECT-SPRONR, sy-vline,
  WA_CNPB_TEMPLATE_OBJECT-SPSPNR, sy-vline,
  WA_CNPB_TEMPLATE_OBJECT-SPLNTY, sy-vline,
  WA_CNPB_TEMPLATE_OBJECT-SPLNNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNPB_TEMPLATE_OBJECT 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_TEMPLATE_OBJECT 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_TEMPLATE_OBJECT INTO WA_CNPB_TEMPLATE_OBJECT.


*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 KONPD, internal->external for field PRONR
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_CNPB_TEMPLATE_OBJECT-PRONR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNPB_TEMPLATE_OBJECT-PRONR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CNPB_TEMPLATE_OBJECT-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNPB_TEMPLATE_OBJECT-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNPB_TEMPLATE_OBJECT-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNPB_TEMPLATE_OBJECT-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KONPS, internal->external for field SPRONR
CALL FUNCTION 'CONVERSION_EXIT_KONPS_OUTPUT'
  EXPORTING
    input =                      WA_CNPB_TEMPLATE_OBJECT-SPRONR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNPB_TEMPLATE_OBJECT-SPRONR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KONPT, internal->external for field SPSPNR
CALL FUNCTION 'CONVERSION_EXIT_KONPT_OUTPUT'
  EXPORTING
    input =                      WA_CNPB_TEMPLATE_OBJECT-SPSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNPB_TEMPLATE_OBJECT-SPSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNPB_TEMPLATE_OBJECT-SPLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNPB_TEMPLATE_OBJECT-SPLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNPB_TEMPLATE_OBJECT-SPLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNPB_TEMPLATE_OBJECT-SPLNAL.
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_CNPB_TEMPLATE_OBJECT_STR, 
PRONR TYPE STRING,
PSPNR TYPE STRING,
AUFNR TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
MLST_ZAEHL TYPE STRING,
TXTKY TYPE STRING,
SPRONR TYPE STRING,
SPSPNR TYPE STRING,
SPLNTY TYPE STRING,
SPLNNR TYPE STRING,
SPLNAL TYPE STRING,
SZAEHL TYPE STRING,
VSNMR TYPE STRING,
PROFID TYPE STRING,
AUART TYPE STRING,
WERKS TYPE STRING,
DISPO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNPB_TEMPLATE_OBJECT_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_TEMPLATE_OBJECT_STR-PRONR sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-PSPNR sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-AUFNR sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-AUFPL sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-APLZL sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-MLST_ZAEHL sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-TXTKY sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-SPRONR sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-SPSPNR sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-SPLNTY sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-SPLNNR sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-SPLNAL sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-SZAEHL sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-VSNMR sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-PROFID sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-AUART sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-WERKS sy-vline 
WA_CNPB_TEMPLATE_OBJECT_STR-DISPO sy-vline      INTO ld_text SEPARATED BY SPACE.

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