ABAP Select data from SAP table INC_COWIPB_CHVW_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INC_COWIPB_CHVW_DATA
*  INTO TABLE @DATA(IT_INC_COWIPB_CHVW_DATA2).
*--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_INC_COWIPB_CHVW_DATA INDEX 1 INTO DATA(WA_INC_COWIPB_CHVW_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INC_COWIPB_CHVW_DATA>-BTYPE = 1.
<INC_COWIPB_CHVW_DATA>-FLGUC = 1.
<INC_COWIPB_CHVW_DATA>-FLGPPC = 1.
<INC_COWIPB_CHVW_DATA>-FLGFC = 1.
<INC_COWIPB_CHVW_DATA>-FLGWA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INC_COWIPB_CHVW_DATA-WERKS, sy-vline,
  WA_INC_COWIPB_CHVW_DATA-UMATNR, sy-vline,
  WA_INC_COWIPB_CHVW_DATA-UCHARG, sy-vline,
  WA_INC_COWIPB_CHVW_DATA-FLGGR, sy-vline,
  WA_INC_COWIPB_CHVW_DATA-MBLNR, sy-vline,
  WA_INC_COWIPB_CHVW_DATA-MJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INC_COWIPB_CHVW_DATA 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_INC_COWIPB_CHVW_DATA 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_INC_COWIPB_CHVW_DATA INTO WA_INC_COWIPB_CHVW_DATA.


*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 MATN1, internal->external for field UMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_INC_COWIPB_CHVW_DATA-UMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INC_COWIPB_CHVW_DATA-UMATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_INC_COWIPB_CHVW_DATA-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INC_COWIPB_CHVW_DATA-MJAHR.
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_INC_COWIPB_CHVW_DATA_STR, 
BTYPE TYPE STRING,
FLGUC TYPE STRING,
FLGPPC TYPE STRING,
FLGFC TYPE STRING,
FLGWA TYPE STRING,
WERKS TYPE STRING,
UMATNR TYPE STRING,
UCHARG TYPE STRING,
FLGGR TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
ZEILE TYPE STRING,
LICHA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INC_COWIPB_CHVW_DATA_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_INC_COWIPB_CHVW_DATA_STR-BTYPE sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-FLGUC sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-FLGPPC sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-FLGFC sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-FLGWA sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-WERKS sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-UMATNR sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-UCHARG sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-FLGGR sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-MBLNR sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-MJAHR sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-ZEILE sy-vline 
WA_INC_COWIPB_CHVW_DATA_STR-LICHA sy-vline      INTO ld_text SEPARATED BY SPACE.

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