ABAP Select data from SAP table V_VISCS_SU_DS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_VISCS_SU_DS
*  INTO TABLE @DATA(IT_V_VISCS_SU_DS2).
*--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_V_VISCS_SU_DS INDEX 1 INTO DATA(WA_V_VISCS_SU_DS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_VISCS_SU_DS>-MANDT = 1.
<V_VISCS_SU_DS>-SCS_SU_GUID = 1.
<V_VISCS_SU_DS>-SETTL_GUID = 1.
<V_VISCS_SU_DS>-OBJTYPE = 1.
<V_VISCS_SU_DS>-OBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_VISCS_SU_DS-BUKRS, sy-vline,
  WA_V_VISCS_SU_DS-SWENR, sy-vline,
  WA_V_VISCS_SU_DS-SNKSL, sy-vline,
  WA_V_VISCS_SU_DS-SEMPSL, sy-vline,
  WA_V_VISCS_SU_DS-SUTYPE, sy-vline,
  WA_V_VISCS_SU_DS-XSU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_VISCS_SU_DS 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_V_VISCS_SU_DS 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_V_VISCS_SU_DS INTO WA_V_VISCS_SU_DS.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_V_VISCS_SU_DS-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_VISCS_SU_DS-SWENR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit REDAT, internal->external for field PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_V_VISCS_SU_DS-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_VISCS_SU_DS-PTO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field MEASUSEDALT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_VISCS_SU_DS-MEASUSEDALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_VISCS_SU_DS-MEASUSEDALT.
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_V_VISCS_SU_DS_STR, 
MANDT TYPE STRING,
SCS_SU_GUID TYPE STRING,
SETTL_GUID TYPE STRING,
OBJTYPE TYPE STRING,
OBJNR TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
SUTYPE TYPE STRING,
XSU TYPE STRING,
PFROM TYPE STRING,
PTO TYPE STRING,
PURPOSE TYPE STRING,
MEAS TYPE STRING,
PLENGTH TYPE STRING,
CC_OBJNR TYPE STRING,
IS_MEAS_REF TYPE STRING,
REF2EQUAL_SU TYPE STRING,
REF2SIM_SU TYPE STRING,
REF2REST_SU TYPE STRING,
APPORTVALUE TYPE STRING,
APPORTVALUEOPT TYPE STRING,
SHARE_PERCENT TYPE STRING,
AFCMETHOD TYPE STRING,
LOC_KEY TYPE STRING,
VACANCY_PERCENT TYPE STRING,
SUM_EQUINUM TYPE STRING,
SUM_EQUINUMUNIT TYPE STRING,
SUM_PERCENT TYPE STRING,
HOW_DISTRIBUTE TYPE STRING,
REST_OBJECT TYPE STRING,
HAS_CHILD TYPE STRING,
HAS_PARENT TYPE STRING,
HAS_RESTOBJ TYPE STRING,
CURRENCY TYPE STRING,
NETAMOUNT TYPE STRING,
NONDEDTAXAMT TYPE STRING,
HAS_COSTS TYPE STRING,
HEATING_SYS TYPE STRING,
ACCFIRM TYPE STRING,
IS_CREDITSSU TYPE STRING,
IS_ONLY4MEAS TYPE STRING,
IS_ROOT_SU TYPE STRING,
REF2MSUSEGUID TYPE STRING,
REF2MSUSESUGUID TYPE STRING,
MEASUSEDALT TYPE STRING,
DEDTAXAMOUNT TYPE STRING,
IS_ONLY4OPTRATE TYPE STRING,
PROCESSGUID TYPE STRING,
PROCESSID TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
VERSION TYPE STRING,
INTRENO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_VISCS_SU_DS_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_V_VISCS_SU_DS_STR-MANDT sy-vline 
WA_V_VISCS_SU_DS_STR-SCS_SU_GUID sy-vline 
WA_V_VISCS_SU_DS_STR-SETTL_GUID sy-vline 
WA_V_VISCS_SU_DS_STR-OBJTYPE sy-vline 
WA_V_VISCS_SU_DS_STR-OBJNR sy-vline 
WA_V_VISCS_SU_DS_STR-BUKRS sy-vline 
WA_V_VISCS_SU_DS_STR-SWENR sy-vline 
WA_V_VISCS_SU_DS_STR-SNKSL sy-vline 
WA_V_VISCS_SU_DS_STR-SEMPSL sy-vline 
WA_V_VISCS_SU_DS_STR-SUTYPE sy-vline 
WA_V_VISCS_SU_DS_STR-XSU sy-vline 
WA_V_VISCS_SU_DS_STR-PFROM sy-vline 
WA_V_VISCS_SU_DS_STR-PTO sy-vline 
WA_V_VISCS_SU_DS_STR-PURPOSE sy-vline 
WA_V_VISCS_SU_DS_STR-MEAS sy-vline 
WA_V_VISCS_SU_DS_STR-PLENGTH sy-vline 
WA_V_VISCS_SU_DS_STR-CC_OBJNR sy-vline 
WA_V_VISCS_SU_DS_STR-IS_MEAS_REF sy-vline 
WA_V_VISCS_SU_DS_STR-REF2EQUAL_SU sy-vline 
WA_V_VISCS_SU_DS_STR-REF2SIM_SU sy-vline 
WA_V_VISCS_SU_DS_STR-REF2REST_SU sy-vline 
WA_V_VISCS_SU_DS_STR-APPORTVALUE sy-vline 
WA_V_VISCS_SU_DS_STR-APPORTVALUEOPT sy-vline 
WA_V_VISCS_SU_DS_STR-SHARE_PERCENT sy-vline 
WA_V_VISCS_SU_DS_STR-AFCMETHOD sy-vline 
WA_V_VISCS_SU_DS_STR-LOC_KEY sy-vline 
WA_V_VISCS_SU_DS_STR-VACANCY_PERCENT sy-vline 
WA_V_VISCS_SU_DS_STR-SUM_EQUINUM sy-vline 
WA_V_VISCS_SU_DS_STR-SUM_EQUINUMUNIT sy-vline 
WA_V_VISCS_SU_DS_STR-SUM_PERCENT sy-vline 
WA_V_VISCS_SU_DS_STR-HOW_DISTRIBUTE sy-vline 
WA_V_VISCS_SU_DS_STR-REST_OBJECT sy-vline 
WA_V_VISCS_SU_DS_STR-HAS_CHILD sy-vline 
WA_V_VISCS_SU_DS_STR-HAS_PARENT sy-vline 
WA_V_VISCS_SU_DS_STR-HAS_RESTOBJ sy-vline 
WA_V_VISCS_SU_DS_STR-CURRENCY sy-vline 
WA_V_VISCS_SU_DS_STR-NETAMOUNT sy-vline 
WA_V_VISCS_SU_DS_STR-NONDEDTAXAMT sy-vline 
WA_V_VISCS_SU_DS_STR-HAS_COSTS sy-vline 
WA_V_VISCS_SU_DS_STR-HEATING_SYS sy-vline 
WA_V_VISCS_SU_DS_STR-ACCFIRM sy-vline 
WA_V_VISCS_SU_DS_STR-IS_CREDITSSU sy-vline 
WA_V_VISCS_SU_DS_STR-IS_ONLY4MEAS sy-vline 
WA_V_VISCS_SU_DS_STR-IS_ROOT_SU sy-vline 
WA_V_VISCS_SU_DS_STR-REF2MSUSEGUID sy-vline 
WA_V_VISCS_SU_DS_STR-REF2MSUSESUGUID sy-vline 
WA_V_VISCS_SU_DS_STR-MEASUSEDALT sy-vline 
WA_V_VISCS_SU_DS_STR-DEDTAXAMOUNT sy-vline 
WA_V_VISCS_SU_DS_STR-IS_ONLY4OPTRATE sy-vline 
WA_V_VISCS_SU_DS_STR-PROCESSGUID sy-vline 
WA_V_VISCS_SU_DS_STR-PROCESSID sy-vline 
WA_V_VISCS_SU_DS_STR-RERF sy-vline 
WA_V_VISCS_SU_DS_STR-DERF sy-vline 
WA_V_VISCS_SU_DS_STR-VERSION sy-vline 
WA_V_VISCS_SU_DS_STR-INTRENO sy-vline      INTO ld_text SEPARATED BY SPACE.

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