ABAP Select data from SAP table VFCC_INST_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VFCC_INST_ITEM
*  INTO TABLE @DATA(IT_VFCC_INST_ITEM2).
*--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_VFCC_INST_ITEM INDEX 1 INTO DATA(WA_VFCC_INST_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VFCC_INST_ITEM>-MANDT = 1.
<VFCC_INST_ITEM>-PROFILE = 1.
<VFCC_INST_ITEM>-INSTANCE = 1.
<VFCC_INST_ITEM>-NODE = 1.
<VFCC_INST_ITEM>-ITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VFCC_INST_ITEM-NODE_GRP, sy-vline,
  WA_VFCC_INST_ITEM-POS, sy-vline,
  WA_VFCC_INST_ITEM-GRP_PREV, sy-vline,
  WA_VFCC_INST_ITEM-KIND, sy-vline,
  WA_VFCC_INST_ITEM-REPORT, sy-vline,
  WA_VFCC_INST_ITEM-VARIANTE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VFCC_INST_ITEM 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_VFCC_INST_ITEM 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_VFCC_INST_ITEM INTO WA_VFCC_INST_ITEM.


*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 RFC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCC_INST_ITEM-RFC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCC_INST_ITEM-RFC_ID.
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_VFCC_INST_ITEM_STR, 
MANDT TYPE STRING,
PROFILE TYPE STRING,
INSTANCE TYPE STRING,
NODE TYPE STRING,
ITEM TYPE STRING,
NODE_GRP TYPE STRING,
POS TYPE STRING,
GRP_PREV TYPE STRING,
KIND TYPE STRING,
REPORT TYPE STRING,
VARIANTE TYPE STRING,
SEQUENCE TYPE STRING,
TRANSACT TYPE STRING,
EXE_USR TYPE STRING,
RES_USR TYPE STRING,
EXE_DAY_OFFSET TYPE STRING,
DAY_TYPE TYPE STRING,
EXE_TIME TYPE STRING,
DEF_TIME_ZONE TYPE STRING,
INACTIVE TYPE STRING,
LOCKED TYPE STRING,
AUTO_VAR TYPE STRING,
TEXT TYPE STRING,
JOB TYPE STRING,
JOB_ID TYPE STRING,
LAUFZEIT_D TYPE STRING,
LAUFZEIT_T TYPE STRING,
DOCUMENT_ID TYPE STRING,
IUSAGE TYPE STRING,
TEST_NODE TYPE STRING,
CRIT_PATH TYPE STRING,
BATCHJOB_ID TYPE STRING,
AGR_NAME TYPE STRING,
COMMENT_FLAG TYPE STRING,
SAP_SCRIPT_ID TYPE STRING,
RT_DEF_ID TYPE STRING,
RT_QUEUE TYPE STRING,
NOTIFIED TYPE STRING,
START_IMMD TYPE STRING,
EXE_USR_ID TYPE STRING,
EXE_USR_TYPE TYPE STRING,
RES_USR_ID TYPE STRING,
RES_USR_TYPE TYPE STRING,
TASK_GROUP TYPE STRING,
TG_ITEM TYPE STRING,
AUTHGRP TYPE STRING,
GLOBAL_ID TYPE STRING,
RFC_ID TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
RJ_USR TYPE STRING,
RJ_JOBNAME TYPE STRING,
RJ_CREATOR TYPE STRING,
IC_SIG TYPE STRING,
IC_AUTO TYPE STRING,
IC_PURP TYPE STRING,
CLOSING_HIER_1 TYPE STRING,
CLOSING_HIER_2 TYPE STRING,
CLOSING_HIER_3 TYPE STRING,
MILESTONE TYPE STRING,
CLOSING_PHASE TYPE STRING,
IGNORE_ERROR TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VFCC_INST_ITEM_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_VFCC_INST_ITEM_STR-MANDT sy-vline 
WA_VFCC_INST_ITEM_STR-PROFILE sy-vline 
WA_VFCC_INST_ITEM_STR-INSTANCE sy-vline 
WA_VFCC_INST_ITEM_STR-NODE sy-vline 
WA_VFCC_INST_ITEM_STR-ITEM sy-vline 
WA_VFCC_INST_ITEM_STR-NODE_GRP sy-vline 
WA_VFCC_INST_ITEM_STR-POS sy-vline 
WA_VFCC_INST_ITEM_STR-GRP_PREV sy-vline 
WA_VFCC_INST_ITEM_STR-KIND sy-vline 
WA_VFCC_INST_ITEM_STR-REPORT sy-vline 
WA_VFCC_INST_ITEM_STR-VARIANTE sy-vline 
WA_VFCC_INST_ITEM_STR-SEQUENCE sy-vline 
WA_VFCC_INST_ITEM_STR-TRANSACT sy-vline 
WA_VFCC_INST_ITEM_STR-EXE_USR sy-vline 
WA_VFCC_INST_ITEM_STR-RES_USR sy-vline 
WA_VFCC_INST_ITEM_STR-EXE_DAY_OFFSET sy-vline 
WA_VFCC_INST_ITEM_STR-DAY_TYPE sy-vline 
WA_VFCC_INST_ITEM_STR-EXE_TIME sy-vline 
WA_VFCC_INST_ITEM_STR-DEF_TIME_ZONE sy-vline 
WA_VFCC_INST_ITEM_STR-INACTIVE sy-vline 
WA_VFCC_INST_ITEM_STR-LOCKED sy-vline 
WA_VFCC_INST_ITEM_STR-AUTO_VAR sy-vline 
WA_VFCC_INST_ITEM_STR-TEXT sy-vline 
WA_VFCC_INST_ITEM_STR-JOB sy-vline 
WA_VFCC_INST_ITEM_STR-JOB_ID sy-vline 
WA_VFCC_INST_ITEM_STR-LAUFZEIT_D sy-vline 
WA_VFCC_INST_ITEM_STR-LAUFZEIT_T sy-vline 
WA_VFCC_INST_ITEM_STR-DOCUMENT_ID sy-vline 
WA_VFCC_INST_ITEM_STR-IUSAGE sy-vline 
WA_VFCC_INST_ITEM_STR-TEST_NODE sy-vline 
WA_VFCC_INST_ITEM_STR-CRIT_PATH sy-vline 
WA_VFCC_INST_ITEM_STR-BATCHJOB_ID sy-vline 
WA_VFCC_INST_ITEM_STR-AGR_NAME sy-vline 
WA_VFCC_INST_ITEM_STR-COMMENT_FLAG sy-vline 
WA_VFCC_INST_ITEM_STR-SAP_SCRIPT_ID sy-vline 
WA_VFCC_INST_ITEM_STR-RT_DEF_ID sy-vline 
WA_VFCC_INST_ITEM_STR-RT_QUEUE sy-vline 
WA_VFCC_INST_ITEM_STR-NOTIFIED sy-vline 
WA_VFCC_INST_ITEM_STR-START_IMMD sy-vline 
WA_VFCC_INST_ITEM_STR-EXE_USR_ID sy-vline 
WA_VFCC_INST_ITEM_STR-EXE_USR_TYPE sy-vline 
WA_VFCC_INST_ITEM_STR-RES_USR_ID sy-vline 
WA_VFCC_INST_ITEM_STR-RES_USR_TYPE sy-vline 
WA_VFCC_INST_ITEM_STR-TASK_GROUP sy-vline 
WA_VFCC_INST_ITEM_STR-TG_ITEM sy-vline 
WA_VFCC_INST_ITEM_STR-AUTHGRP sy-vline 
WA_VFCC_INST_ITEM_STR-GLOBAL_ID sy-vline 
WA_VFCC_INST_ITEM_STR-RFC_ID sy-vline 
WA_VFCC_INST_ITEM_STR-CREATED_BY sy-vline 
WA_VFCC_INST_ITEM_STR-CREATED_ON sy-vline 
WA_VFCC_INST_ITEM_STR-CHANGED_BY sy-vline 
WA_VFCC_INST_ITEM_STR-CHANGED_ON sy-vline 
WA_VFCC_INST_ITEM_STR-RJ_USR sy-vline 
WA_VFCC_INST_ITEM_STR-RJ_JOBNAME sy-vline 
WA_VFCC_INST_ITEM_STR-RJ_CREATOR sy-vline 
WA_VFCC_INST_ITEM_STR-IC_SIG sy-vline 
WA_VFCC_INST_ITEM_STR-IC_AUTO sy-vline 
WA_VFCC_INST_ITEM_STR-IC_PURP sy-vline 
WA_VFCC_INST_ITEM_STR-CLOSING_HIER_1 sy-vline 
WA_VFCC_INST_ITEM_STR-CLOSING_HIER_2 sy-vline 
WA_VFCC_INST_ITEM_STR-CLOSING_HIER_3 sy-vline 
WA_VFCC_INST_ITEM_STR-MILESTONE sy-vline 
WA_VFCC_INST_ITEM_STR-CLOSING_PHASE sy-vline 
WA_VFCC_INST_ITEM_STR-IGNORE_ERROR sy-vline 
WA_VFCC_INST_ITEM_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.