ABAP Select data from SAP table KV02S into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KV02S 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 KV02S. 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 KV02S 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_KV02S TYPE STANDARD TABLE OF KV02S,
      WA_KV02S TYPE KV02S,
      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: <KV02S> TYPE KV02S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KV02S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KV02S
  INTO TABLE IT_KV02S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KV02S
*  INTO TABLE @DATA(IT_KV02S2).
*--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_KV02S INDEX 1 INTO DATA(WA_KV02S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KV02S ASSIGNING <KV02S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KV02S>-OBJID = 1.
<KV02S>-OBJNR = 1.
<KV02S>-LEDNR = 1.
<KV02S>-VERSN = 1.
<KV02S>-POPER = 1.

ENDLOOP.

LOOP AT IT_KV02S INTO WA_KV02S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KV02S-GJAHR, sy-vline,
  WA_KV02S-WRTTP, sy-vline,
  WA_KV02S-WRTXT, sy-vline,
  WA_KV02S-ABKAT, sy-vline,
  WA_KV02S-KSTAR, sy-vline,
  WA_KV02S-HRKFT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KV02S 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_KV02S 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_KV02S INTO WA_KV02S.


*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 LEDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-LEDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-WRTTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABKAT, internal->external for field ABKAT
CALL FUNCTION 'CONVERSION_EXIT_ABKAT_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-ABKAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-ABKAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BEKNZ, internal->external for field BEKNZ
CALL FUNCTION 'CONVERSION_EXIT_BEKNZ_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-BEKNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-BEKNZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKGXX
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-WKGXX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-WKGXX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKFXX
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-WKFXX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-WKFXX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PAGXX
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-PAGXX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-PAGXX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGXX
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-WOGXX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-WOGXX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WTGXX
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-WTGXX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-WTGXX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRVTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-DRVTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-DRVTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CBAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-CBAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-CBAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECIND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-RECIND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-RECIND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RSRCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-RSRCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-RSRCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PGRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-PGRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-PGRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PSEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KV02S-PSEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KV02S-PSEGMENT.
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_KV02S_STR, 
OBJID TYPE STRING,
OBJNR TYPE STRING,
LEDNR TYPE STRING,
VERSN TYPE STRING,
POPER TYPE STRING,
GJAHR TYPE STRING,
WRTTP TYPE STRING,
WRTXT TYPE STRING,
ABKAT TYPE STRING,
KSTAR TYPE STRING,
HRKFT TYPE STRING,
VRGNG TYPE STRING,
PAROB TYPE STRING,
USPOB TYPE STRING,
BEKNZ TYPE STRING,
KWAER TYPE STRING,
WKGXX TYPE STRING,
WKFXX TYPE STRING,
PAGXX TYPE STRING,
OWAER TYPE STRING,
WOGXX TYPE STRING,
TWAER TYPE STRING,
WTGXX TYPE STRING,
MEINH TYPE STRING,
MEGXX TYPE STRING,
MEFXX TYPE STRING,
MUVLG TYPE STRING,
BELTP TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
HKGRP TYPE STRING,
PCVER TYPE STRING,
CBRKE TYPE STRING,
CBRKI TYPE STRING,
CBART TYPE STRING,
DRVTP TYPE STRING,
CBAT TYPE STRING,
RECIND TYPE STRING,
BEMOT TYPE STRING,
PERNR TYPE STRING,
RSRCE TYPE STRING,
FKBER TYPE STRING,
PFKBER TYPE STRING,
GEBER TYPE STRING,
PGEBER TYPE STRING,
GRANT_NBR TYPE STRING,
PGRANT_NBR TYPE STRING,
SEGMENT TYPE STRING,
PSEGMENT TYPE STRING,
BUDGET_PD TYPE STRING,
PBUDGET_PD TYPE STRING,
PRODPER TYPE STRING,
AD04ADJIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KV02S_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_KV02S_STR-OBJID sy-vline 
WA_KV02S_STR-OBJNR sy-vline 
WA_KV02S_STR-LEDNR sy-vline 
WA_KV02S_STR-VERSN sy-vline 
WA_KV02S_STR-POPER sy-vline 
WA_KV02S_STR-GJAHR sy-vline 
WA_KV02S_STR-WRTTP sy-vline 
WA_KV02S_STR-WRTXT sy-vline 
WA_KV02S_STR-ABKAT sy-vline 
WA_KV02S_STR-KSTAR sy-vline 
WA_KV02S_STR-HRKFT sy-vline 
WA_KV02S_STR-VRGNG sy-vline 
WA_KV02S_STR-PAROB sy-vline 
WA_KV02S_STR-USPOB sy-vline 
WA_KV02S_STR-BEKNZ sy-vline 
WA_KV02S_STR-KWAER sy-vline 
WA_KV02S_STR-WKGXX sy-vline 
WA_KV02S_STR-WKFXX sy-vline 
WA_KV02S_STR-PAGXX sy-vline 
WA_KV02S_STR-OWAER sy-vline 
WA_KV02S_STR-WOGXX sy-vline 
WA_KV02S_STR-TWAER sy-vline 
WA_KV02S_STR-WTGXX sy-vline 
WA_KV02S_STR-MEINH sy-vline 
WA_KV02S_STR-MEGXX sy-vline 
WA_KV02S_STR-MEFXX sy-vline 
WA_KV02S_STR-MUVLG sy-vline 
WA_KV02S_STR-BELTP sy-vline 
WA_KV02S_STR-WERKS sy-vline 
WA_KV02S_STR-MATNR sy-vline 
WA_KV02S_STR-HKGRP sy-vline 
WA_KV02S_STR-PCVER sy-vline 
WA_KV02S_STR-CBRKE sy-vline 
WA_KV02S_STR-CBRKI sy-vline 
WA_KV02S_STR-CBART sy-vline 
WA_KV02S_STR-DRVTP sy-vline 
WA_KV02S_STR-CBAT sy-vline 
WA_KV02S_STR-RECIND sy-vline 
WA_KV02S_STR-BEMOT sy-vline 
WA_KV02S_STR-PERNR sy-vline 
WA_KV02S_STR-RSRCE sy-vline 
WA_KV02S_STR-FKBER sy-vline 
WA_KV02S_STR-PFKBER sy-vline 
WA_KV02S_STR-GEBER sy-vline 
WA_KV02S_STR-PGEBER sy-vline 
WA_KV02S_STR-GRANT_NBR sy-vline 
WA_KV02S_STR-PGRANT_NBR sy-vline 
WA_KV02S_STR-SEGMENT sy-vline 
WA_KV02S_STR-PSEGMENT sy-vline 
WA_KV02S_STR-BUDGET_PD sy-vline 
WA_KV02S_STR-PBUDGET_PD sy-vline 
WA_KV02S_STR-PRODPER sy-vline 
WA_KV02S_STR-AD04ADJIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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