ABAP Select data from SAP table COWIPB_CHVW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COWIPB_CHVW
*  INTO TABLE @DATA(IT_COWIPB_CHVW2).
*--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_COWIPB_CHVW INDEX 1 INTO DATA(WA_COWIPB_CHVW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COWIPB_CHVW>-MANDT = 1.
<COWIPB_CHVW>-AUFNR = 1.
<COWIPB_CHVW>-POSNR = 1.
<COWIPB_CHVW>-MATNR = 1.
<COWIPB_CHVW>-CHARG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COWIPB_CHVW-PCLVL, sy-vline,
  WA_COWIPB_CHVW-AUFNR_PRE, sy-vline,
  WA_COWIPB_CHVW-POSNR_PRE, sy-vline,
  WA_COWIPB_CHVW-MATNR_PRE, sy-vline,
  WA_COWIPB_CHVW-CHARG_PRE, sy-vline,
  WA_COWIPB_CHVW-PCLVL_PRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COWIPB_CHVW 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_COWIPB_CHVW 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_COWIPB_CHVW INTO WA_COWIPB_CHVW.


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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_COWIPB_CHVW-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COWIPB_CHVW-MJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_COWIPB_CHVW-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COWIPB_CHVW-VORNR.
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_COWIPB_CHVW_STR, 
MANDT TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
PCLVL TYPE STRING,
AUFNR_PRE TYPE STRING,
POSNR_PRE TYPE STRING,
MATNR_PRE TYPE STRING,
CHARG_PRE TYPE STRING,
PCLVL_PRE TYPE STRING,
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,
AUFPL TYPE STRING,
APLZL TYPE STRING,
APLFL TYPE STRING,
VORNR TYPE STRING,
PHFLG TYPE STRING,
PORD_ARCHIVED TYPE STRING,
ARCH_DATE TYPE STRING,
ARCH_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COWIPB_CHVW_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_COWIPB_CHVW_STR-MANDT sy-vline 
WA_COWIPB_CHVW_STR-AUFNR sy-vline 
WA_COWIPB_CHVW_STR-POSNR sy-vline 
WA_COWIPB_CHVW_STR-MATNR sy-vline 
WA_COWIPB_CHVW_STR-CHARG sy-vline 
WA_COWIPB_CHVW_STR-PCLVL sy-vline 
WA_COWIPB_CHVW_STR-AUFNR_PRE sy-vline 
WA_COWIPB_CHVW_STR-POSNR_PRE sy-vline 
WA_COWIPB_CHVW_STR-MATNR_PRE sy-vline 
WA_COWIPB_CHVW_STR-CHARG_PRE sy-vline 
WA_COWIPB_CHVW_STR-PCLVL_PRE sy-vline 
WA_COWIPB_CHVW_STR-BTYPE sy-vline 
WA_COWIPB_CHVW_STR-FLGUC sy-vline 
WA_COWIPB_CHVW_STR-FLGPPC sy-vline 
WA_COWIPB_CHVW_STR-FLGFC sy-vline 
WA_COWIPB_CHVW_STR-FLGWA sy-vline 
WA_COWIPB_CHVW_STR-WERKS sy-vline 
WA_COWIPB_CHVW_STR-UMATNR sy-vline 
WA_COWIPB_CHVW_STR-UCHARG sy-vline 
WA_COWIPB_CHVW_STR-FLGGR sy-vline 
WA_COWIPB_CHVW_STR-MBLNR sy-vline 
WA_COWIPB_CHVW_STR-MJAHR sy-vline 
WA_COWIPB_CHVW_STR-ZEILE sy-vline 
WA_COWIPB_CHVW_STR-LICHA sy-vline 
WA_COWIPB_CHVW_STR-AUFPL sy-vline 
WA_COWIPB_CHVW_STR-APLZL sy-vline 
WA_COWIPB_CHVW_STR-APLFL sy-vline 
WA_COWIPB_CHVW_STR-VORNR sy-vline 
WA_COWIPB_CHVW_STR-PHFLG sy-vline 
WA_COWIPB_CHVW_STR-PORD_ARCHIVED sy-vline 
WA_COWIPB_CHVW_STR-ARCH_DATE sy-vline 
WA_COWIPB_CHVW_STR-ARCH_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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