ABAP Select data from SAP table VNJIT_COMM_GRP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VNJIT_COMM_GRP
*  INTO TABLE @DATA(IT_VNJIT_COMM_GRP2).
*--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_VNJIT_COMM_GRP INDEX 1 INTO DATA(WA_VNJIT_COMM_GRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VNJIT_COMM_GRP>-MANDT = 1.
<VNJIT_COMM_GRP>-JITOUTBCOMMUNICATIONGROUPUUID = 1.
<VNJIT_COMM_GRP>-JITOUTBCOMMUNICATIONGROUP = 1.
<VNJIT_COMM_GRP>-SUPPLIER = 1.
<VNJIT_COMM_GRP>-BUSINESSPARTNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VNJIT_COMM_GRP-JITOUTBCOMMGRPSTATUS, sy-vline,
  WA_VNJIT_COMM_GRP-JITOUTBCOMMUNICATIONGROUPDESC, sy-vline,
  WA_VNJIT_COMM_GRP-BLOCKEDSTATUSSETDATE, sy-vline,
  WA_VNJIT_COMM_GRP-INACTIVESTATUSSETDATE, sy-vline,
  WA_VNJIT_COMM_GRP-JITOUTBCHANGECALLDURATION, sy-vline,
  WA_VNJIT_COMM_GRP-LASTCHANGEDBYUSERNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VNJIT_COMM_GRP 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_VNJIT_COMM_GRP 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_VNJIT_COMM_GRP INTO WA_VNJIT_COMM_GRP.


*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 JITOUTBCOMMUNICATIONGROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNJIT_COMM_GRP-JITOUTBCOMMUNICATIONGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNJIT_COMM_GRP-JITOUTBCOMMUNICATIONGROUP.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNJIT_COMM_GRP-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNJIT_COMM_GRP-BUSINESSPARTNER.
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_VNJIT_COMM_GRP_STR, 
MANDT TYPE STRING,
JITOUTBCOMMUNICATIONGROUPUUID TYPE STRING,
JITOUTBCOMMUNICATIONGROUP TYPE STRING,
SUPPLIER TYPE STRING,
BUSINESSPARTNER TYPE STRING,
JITOUTBCOMMGRPSTATUS TYPE STRING,
JITOUTBCOMMUNICATIONGROUPDESC TYPE STRING,
BLOCKEDSTATUSSETDATE TYPE STRING,
INACTIVESTATUSSETDATE TYPE STRING,
JITOUTBCHANGECALLDURATION TYPE STRING,
LASTCHANGEDBYUSERNAME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VNJIT_COMM_GRP_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_VNJIT_COMM_GRP_STR-MANDT sy-vline 
WA_VNJIT_COMM_GRP_STR-JITOUTBCOMMUNICATIONGROUPUUID sy-vline 
WA_VNJIT_COMM_GRP_STR-JITOUTBCOMMUNICATIONGROUP sy-vline 
WA_VNJIT_COMM_GRP_STR-SUPPLIER sy-vline 
WA_VNJIT_COMM_GRP_STR-BUSINESSPARTNER sy-vline 
WA_VNJIT_COMM_GRP_STR-JITOUTBCOMMGRPSTATUS sy-vline 
WA_VNJIT_COMM_GRP_STR-JITOUTBCOMMUNICATIONGROUPDESC sy-vline 
WA_VNJIT_COMM_GRP_STR-BLOCKEDSTATUSSETDATE sy-vline 
WA_VNJIT_COMM_GRP_STR-INACTIVESTATUSSETDATE sy-vline 
WA_VNJIT_COMM_GRP_STR-JITOUTBCHANGECALLDURATION sy-vline 
WA_VNJIT_COMM_GRP_STR-LASTCHANGEDBYUSERNAME sy-vline 
WA_VNJIT_COMM_GRP_STR-LASTCHANGEDATETIME sy-vline 
WA_VNJIT_COMM_GRP_STR-CREATIONDATETIME sy-vline 
WA_VNJIT_COMM_GRP_STR-CREATEDBYUSER sy-vline 
WA_VNJIT_COMM_GRP_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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