ABAP Select data from SAP table VPRF_C_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VPRF_C_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 VPRF_C_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 VPRF_C_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_VPRF_C_ITEM TYPE STANDARD TABLE OF VPRF_C_ITEM,
      WA_VPRF_C_ITEM TYPE VPRF_C_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: <VPRF_C_ITEM> TYPE VPRF_C_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VPRF_C_ITEM
*  INTO TABLE @DATA(IT_VPRF_C_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_VPRF_C_ITEM INDEX 1 INTO DATA(WA_VPRF_C_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VPRF_C_ITEM>-MANDT = 1.
<VPRF_C_ITEM>-HEADER_KEY = 1.
<VPRF_C_ITEM>-VERS_NO = 1.
<VPRF_C_ITEM>-ITEM_APPROVAL_STATUS = 1.
<VPRF_C_ITEM>-ITEM_STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VPRF_C_ITEM-VENDOR_ID, sy-vline,
  WA_VPRF_C_ITEM-VENDOR_NAM, sy-vline,
  WA_VPRF_C_ITEM-VENDOR_VATNO, sy-vline,
  WA_VPRF_C_ITEM-TOTAL_CONTRACT_VAL, sy-vline,
  WA_VPRF_C_ITEM-TOTAL_VAL_CURR, sy-vline,
  WA_VPRF_C_ITEM-CONTRACT_VALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VPRF_C_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_VPRF_C_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_VPRF_C_ITEM INTO WA_VPRF_C_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 VENDOR_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VPRF_C_ITEM-VENDOR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VPRF_C_ITEM-VENDOR_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GL_ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VPRF_C_ITEM-GL_ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VPRF_C_ITEM-GL_ACCOUNT.
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_VPRF_C_ITEM_STR, 
MANDT TYPE STRING,
HEADER_KEY TYPE STRING,
VERS_NO TYPE STRING,
ITEM_APPROVAL_STATUS TYPE STRING,
ITEM_STATUS TYPE STRING,
VENDOR_ID TYPE STRING,
VENDOR_NAM TYPE STRING,
VENDOR_VATNO TYPE STRING,
TOTAL_CONTRACT_VAL TYPE STRING,
TOTAL_VAL_CURR TYPE STRING,
CONTRACT_VALUE TYPE STRING,
CTR_START_DT TYPE STRING,
CTR_END_DT TYPE STRING,
CURRENCY_KEY TYPE STRING,
PO_GRP TYPE STRING,
CALC_REF_DATE TYPE STRING,
AMEND_VALUE TYPE STRING,
AMEND_CURR TYPE STRING,
AMEND_STARTDT TYPE STRING,
AMEND_REASN TYPE STRING,
NODE_VERS TYPE STRING,
ELMT_LAYOUT_XML TYPE STRING,
SRM_GUID TYPE STRING,
PARNT_RELEASE_ST TYPE STRING,
SON_MUL TYPE STRING,
SONID TYPE STRING,
AUST_IND TYPE STRING,
ATMID TYPE STRING,
PROCUR_METD TYPE STRING,
CPR_JUSTIF TYPE STRING,
UNSPSC_CODE TYPE STRING,
CTR_DESC TYPE STRING,
PUB_AUST TYPE STRING,
PUB_BLK_REASON TYPE STRING,
PUB_BLK_JUSTF TYPE STRING,
CONSULT_SERV_IND TYPE STRING,
JUSTIF_CONSULT TYPE STRING,
CONSULT_OTH_DESC TYPE STRING,
CONF_PROV_IND TYPE STRING,
CONFID_IND TYPE STRING,
CONFID_REASON TYPE STRING,
CONFID_TXT TYPE STRING,
CONFID_OP_IND TYPE STRING,
CONFID_OP_REASON TYPE STRING,
CONFID_OP_TXT TYPE STRING,
CONTACT_CODE TYPE STRING,
OFFICE_PCODE TYPE STRING,
MATERIAL_GROUP TYPE STRING,
GL_ACCOUNT TYPE STRING,
CN_IDENTIFCTN TYPE STRING,
PRF_CTR_START_DT TYPE STRING,
PRF_CTR_END_DT TYPE STRING,
LTR_EXEMPT_IND TYPE STRING,
LTR_EXEMPT_CODE TYPE STRING,
LTR_COND_CODE TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VPRF_C_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_VPRF_C_ITEM_STR-MANDT sy-vline 
WA_VPRF_C_ITEM_STR-HEADER_KEY sy-vline 
WA_VPRF_C_ITEM_STR-VERS_NO sy-vline 
WA_VPRF_C_ITEM_STR-ITEM_APPROVAL_STATUS sy-vline 
WA_VPRF_C_ITEM_STR-ITEM_STATUS sy-vline 
WA_VPRF_C_ITEM_STR-VENDOR_ID sy-vline 
WA_VPRF_C_ITEM_STR-VENDOR_NAM sy-vline 
WA_VPRF_C_ITEM_STR-VENDOR_VATNO sy-vline 
WA_VPRF_C_ITEM_STR-TOTAL_CONTRACT_VAL sy-vline 
WA_VPRF_C_ITEM_STR-TOTAL_VAL_CURR sy-vline 
WA_VPRF_C_ITEM_STR-CONTRACT_VALUE sy-vline 
WA_VPRF_C_ITEM_STR-CTR_START_DT sy-vline 
WA_VPRF_C_ITEM_STR-CTR_END_DT sy-vline 
WA_VPRF_C_ITEM_STR-CURRENCY_KEY sy-vline 
WA_VPRF_C_ITEM_STR-PO_GRP sy-vline 
WA_VPRF_C_ITEM_STR-CALC_REF_DATE sy-vline 
WA_VPRF_C_ITEM_STR-AMEND_VALUE sy-vline 
WA_VPRF_C_ITEM_STR-AMEND_CURR sy-vline 
WA_VPRF_C_ITEM_STR-AMEND_STARTDT sy-vline 
WA_VPRF_C_ITEM_STR-AMEND_REASN sy-vline 
WA_VPRF_C_ITEM_STR-NODE_VERS sy-vline 
WA_VPRF_C_ITEM_STR-ELMT_LAYOUT_XML sy-vline 
WA_VPRF_C_ITEM_STR-SRM_GUID sy-vline 
WA_VPRF_C_ITEM_STR-PARNT_RELEASE_ST sy-vline 
WA_VPRF_C_ITEM_STR-SON_MUL sy-vline 
WA_VPRF_C_ITEM_STR-SONID sy-vline 
WA_VPRF_C_ITEM_STR-AUST_IND sy-vline 
WA_VPRF_C_ITEM_STR-ATMID sy-vline 
WA_VPRF_C_ITEM_STR-PROCUR_METD sy-vline 
WA_VPRF_C_ITEM_STR-CPR_JUSTIF sy-vline 
WA_VPRF_C_ITEM_STR-UNSPSC_CODE sy-vline 
WA_VPRF_C_ITEM_STR-CTR_DESC sy-vline 
WA_VPRF_C_ITEM_STR-PUB_AUST sy-vline 
WA_VPRF_C_ITEM_STR-PUB_BLK_REASON sy-vline 
WA_VPRF_C_ITEM_STR-PUB_BLK_JUSTF sy-vline 
WA_VPRF_C_ITEM_STR-CONSULT_SERV_IND sy-vline 
WA_VPRF_C_ITEM_STR-JUSTIF_CONSULT sy-vline 
WA_VPRF_C_ITEM_STR-CONSULT_OTH_DESC sy-vline 
WA_VPRF_C_ITEM_STR-CONF_PROV_IND sy-vline 
WA_VPRF_C_ITEM_STR-CONFID_IND sy-vline 
WA_VPRF_C_ITEM_STR-CONFID_REASON sy-vline 
WA_VPRF_C_ITEM_STR-CONFID_TXT sy-vline 
WA_VPRF_C_ITEM_STR-CONFID_OP_IND sy-vline 
WA_VPRF_C_ITEM_STR-CONFID_OP_REASON sy-vline 
WA_VPRF_C_ITEM_STR-CONFID_OP_TXT sy-vline 
WA_VPRF_C_ITEM_STR-CONTACT_CODE sy-vline 
WA_VPRF_C_ITEM_STR-OFFICE_PCODE sy-vline 
WA_VPRF_C_ITEM_STR-MATERIAL_GROUP sy-vline 
WA_VPRF_C_ITEM_STR-GL_ACCOUNT sy-vline 
WA_VPRF_C_ITEM_STR-CN_IDENTIFCTN sy-vline 
WA_VPRF_C_ITEM_STR-PRF_CTR_START_DT sy-vline 
WA_VPRF_C_ITEM_STR-PRF_CTR_END_DT sy-vline 
WA_VPRF_C_ITEM_STR-LTR_EXEMPT_IND sy-vline 
WA_VPRF_C_ITEM_STR-LTR_EXEMPT_CODE sy-vline 
WA_VPRF_C_ITEM_STR-LTR_COND_CODE sy-vline 
WA_VPRF_C_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.