ABAP Select data from SAP table VCSD_UPDATE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCSD_UPDATE
*  INTO TABLE @DATA(IT_VCSD_UPDATE2).
*--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_VCSD_UPDATE INDEX 1 INTO DATA(WA_VCSD_UPDATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCSD_UPDATE>-BRGEW = 1.
<VCSD_UPDATE>-ATAUT01 = 1.
<VCSD_UPDATE>-NTGEW = 1.
<VCSD_UPDATE>-ATAUT02 = 1.
<VCSD_UPDATE>-GEWEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCSD_UPDATE-ATAUT03, sy-vline,
  WA_VCSD_UPDATE-VOLUM, sy-vline,
  WA_VCSD_UPDATE-ATAUT04, sy-vline,
  WA_VCSD_UPDATE-VOLEH, sy-vline,
  WA_VCSD_UPDATE-ATAUT05, sy-vline,
  WA_VCSD_UPDATE-KWMENG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCSD_UPDATE 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_VCSD_UPDATE 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_VCSD_UPDATE INTO WA_VCSD_UPDATE.


*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 CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VCSD_UPDATE-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCSD_UPDATE-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VCSD_UPDATE-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCSD_UPDATE-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VCSD_UPDATE-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCSD_UPDATE-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ZIEME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VCSD_UPDATE-ZIEME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCSD_UPDATE-ZIEME.
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_VCSD_UPDATE_STR, 
BRGEW TYPE STRING,
ATAUT01 TYPE STRING,
NTGEW TYPE STRING,
ATAUT02 TYPE STRING,
GEWEI TYPE STRING,
ATAUT03 TYPE STRING,
VOLUM TYPE STRING,
ATAUT04 TYPE STRING,
VOLEH TYPE STRING,
ATAUT05 TYPE STRING,
KWMENG TYPE STRING,
ATAUT06 TYPE STRING,
VRKME TYPE STRING,
ATAUT07 TYPE STRING,
UMVKZ TYPE STRING,
ATAUT08 TYPE STRING,
UMVKN TYPE STRING,
ATAUT09 TYPE STRING,
ZMENG TYPE STRING,
ATAUT10 TYPE STRING,
ZIEME TYPE STRING,
ATAUT11 TYPE STRING,
UMZIZ TYPE STRING,
ATAUT12 TYPE STRING,
UMZIN TYPE STRING,
ATAUT13 TYPE STRING,
ARKTX TYPE STRING,
ATAUT14 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCSD_UPDATE_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_VCSD_UPDATE_STR-BRGEW sy-vline 
WA_VCSD_UPDATE_STR-ATAUT01 sy-vline 
WA_VCSD_UPDATE_STR-NTGEW sy-vline 
WA_VCSD_UPDATE_STR-ATAUT02 sy-vline 
WA_VCSD_UPDATE_STR-GEWEI sy-vline 
WA_VCSD_UPDATE_STR-ATAUT03 sy-vline 
WA_VCSD_UPDATE_STR-VOLUM sy-vline 
WA_VCSD_UPDATE_STR-ATAUT04 sy-vline 
WA_VCSD_UPDATE_STR-VOLEH sy-vline 
WA_VCSD_UPDATE_STR-ATAUT05 sy-vline 
WA_VCSD_UPDATE_STR-KWMENG sy-vline 
WA_VCSD_UPDATE_STR-ATAUT06 sy-vline 
WA_VCSD_UPDATE_STR-VRKME sy-vline 
WA_VCSD_UPDATE_STR-ATAUT07 sy-vline 
WA_VCSD_UPDATE_STR-UMVKZ sy-vline 
WA_VCSD_UPDATE_STR-ATAUT08 sy-vline 
WA_VCSD_UPDATE_STR-UMVKN sy-vline 
WA_VCSD_UPDATE_STR-ATAUT09 sy-vline 
WA_VCSD_UPDATE_STR-ZMENG sy-vline 
WA_VCSD_UPDATE_STR-ATAUT10 sy-vline 
WA_VCSD_UPDATE_STR-ZIEME sy-vline 
WA_VCSD_UPDATE_STR-ATAUT11 sy-vline 
WA_VCSD_UPDATE_STR-UMZIZ sy-vline 
WA_VCSD_UPDATE_STR-ATAUT12 sy-vline 
WA_VCSD_UPDATE_STR-UMZIN sy-vline 
WA_VCSD_UPDATE_STR-ATAUT13 sy-vline 
WA_VCSD_UPDATE_STR-ARKTX sy-vline 
WA_VCSD_UPDATE_STR-ATAUT14 sy-vline      INTO ld_text SEPARATED BY SPACE.

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