ABAP Select data from SAP table /BEV3/CH_VISUPDT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV3/CH_VISUPDT 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 /BEV3/CH_VISUPDT. 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 /BEV3/CH_VISUPDT 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_/BEV3/CH_VISUPDT TYPE STANDARD TABLE OF /BEV3/CH_VISUPDT,
      WA_/BEV3/CH_VISUPDT TYPE /BEV3/CH_VISUPDT,
      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: </BEV3/CH_VISUPDT> TYPE /BEV3/CH_VISUPDT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV3/CH_VISUPDT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV3/CH_VISUPDT
  INTO TABLE IT_/BEV3/CH_VISUPDT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV3/CH_VISUPDT
*  INTO TABLE @DATA(IT_/BEV3/CH_VISUPDT2).
*--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_/BEV3/CH_VISUPDT INDEX 1 INTO DATA(WA_/BEV3/CH_VISUPDT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV3/CH_VISUPDT ASSIGNING </BEV3/CH_VISUPDT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV3/CH_VISUPDT>-MANDT = 1.
</BEV3/CH_VISUPDT>-SSOUR = 1.
</BEV3/CH_VISUPDT>-VRSIO = 1.
</BEV3/CH_VISUPDT>-SPMON = 1.
</BEV3/CH_VISUPDT>-SPTAG = 1.

ENDLOOP.

LOOP AT IT_/BEV3/CH_VISUPDT INTO WA_/BEV3/CH_VISUPDT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV3/CH_VISUPDT-SPWOC, sy-vline,
  WA_/BEV3/CH_VISUPDT-SPBUP, sy-vline,
  WA_/BEV3/CH_VISUPDT-VKORG, sy-vline,
  WA_/BEV3/CH_VISUPDT-PKUNAG, sy-vline,
  WA_/BEV3/CH_VISUPDT-/BEV3/CHAR, sy-vline,
  WA_/BEV3/CH_VISUPDT-MATNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV3/CH_VISUPDT 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_/BEV3/CH_VISUPDT 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_/BEV3/CH_VISUPDT INTO WA_/BEV3/CH_VISUPDT.


*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 PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_/BEV3/CH_VISUPDT-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV3/CH_VISUPDT-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_/BEV3/CH_VISUPDT-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV3/CH_VISUPDT-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_/BEV3/CH_VISUPDT-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV3/CH_VISUPDT-SPBUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV3/CH_VISUPDT-PKUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV3/CH_VISUPDT-PKUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/BEV3/CH_VISUPDT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV3/CH_VISUPDT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field /BEV3/CHRG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV3/CH_VISUPDT-/BEV3/CHRG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV3/CH_VISUPDT-/BEV3/CHRG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV3/CH_VISUPDT-PKUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV3/CH_VISUPDT-PKUNWE.
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_/BEV3/CH_VISUPDT_STR, 
MANDT TYPE STRING,
SSOUR TYPE STRING,
VRSIO TYPE STRING,
SPMON TYPE STRING,
SPTAG TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
VKORG TYPE STRING,
PKUNAG TYPE STRING,
/BEV3/CHAR TYPE STRING,
MATNR TYPE STRING,
/BEV3/CHRG TYPE STRING,
PKUNWE TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
WERKS TYPE STRING,
DATE_UPDATE TYPE STRING,
TIME_UPDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV3/CH_VISUPDT_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_/BEV3/CH_VISUPDT_STR-MANDT sy-vline 
WA_/BEV3/CH_VISUPDT_STR-SSOUR sy-vline 
WA_/BEV3/CH_VISUPDT_STR-VRSIO sy-vline 
WA_/BEV3/CH_VISUPDT_STR-SPMON sy-vline 
WA_/BEV3/CH_VISUPDT_STR-SPTAG sy-vline 
WA_/BEV3/CH_VISUPDT_STR-SPWOC sy-vline 
WA_/BEV3/CH_VISUPDT_STR-SPBUP sy-vline 
WA_/BEV3/CH_VISUPDT_STR-VKORG sy-vline 
WA_/BEV3/CH_VISUPDT_STR-PKUNAG sy-vline 
WA_/BEV3/CH_VISUPDT_STR-/BEV3/CHAR sy-vline 
WA_/BEV3/CH_VISUPDT_STR-MATNR sy-vline 
WA_/BEV3/CH_VISUPDT_STR-/BEV3/CHRG sy-vline 
WA_/BEV3/CH_VISUPDT_STR-PKUNWE sy-vline 
WA_/BEV3/CH_VISUPDT_STR-VTWEG sy-vline 
WA_/BEV3/CH_VISUPDT_STR-SPART sy-vline 
WA_/BEV3/CH_VISUPDT_STR-WERKS sy-vline 
WA_/BEV3/CH_VISUPDT_STR-DATE_UPDATE sy-vline 
WA_/BEV3/CH_VISUPDT_STR-TIME_UPDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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