ABAP Select data from SAP table KUWEV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KUWEV
*  INTO TABLE @DATA(IT_KUWEV2).
*--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_KUWEV INDEX 1 INTO DATA(WA_KUWEV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KUWEV>-KUNNR = 1.
<KUWEV>-NAME1 = 1.
<KUWEV>-STRAS = 1.
<KUWEV>-PFACH = 1.
<KUWEV>-PSTLZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KUWEV-PSTL2, sy-vline,
  WA_KUWEV-ORT01, sy-vline,
  WA_KUWEV-SPRAS, sy-vline,
  WA_KUWEV-LAND1, sy-vline,
  WA_KUWEV-LZONE, sy-vline,
  WA_KUWEV-BAHNS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KUWEV 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_KUWEV 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_KUWEV INTO WA_KUWEV.


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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_KUWEV-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KUWEV-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit TSTRG, internal->external for field PODTG
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_KUWEV-PODTG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KUWEV-PODTG.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field FSH_MSOCDC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KUWEV-FSH_MSOCDC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KUWEV-FSH_MSOCDC.
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_KUWEV_STR, 
KUNNR TYPE STRING,
NAME1 TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
PSTLZ TYPE STRING,
PSTL2 TYPE STRING,
ORT01 TYPE STRING,
SPRAS TYPE STRING,
LAND1 TYPE STRING,
LZONE TYPE STRING,
BAHNS TYPE STRING,
BAHNE TYPE STRING,
TELF1 TYPE STRING,
ABLAD TYPE STRING,
KNFAK TYPE STRING,
WATSI TYPE STRING,
WANID TYPE STRING,
MOAB1 TYPE STRING,
MOBI1 TYPE STRING,
MOAB2 TYPE STRING,
MOBI2 TYPE STRING,
DIAB1 TYPE STRING,
DIBI1 TYPE STRING,
DIAB2 TYPE STRING,
DIBI2 TYPE STRING,
MIAB1 TYPE STRING,
MIBI1 TYPE STRING,
MIAB2 TYPE STRING,
MIBI2 TYPE STRING,
DOAB1 TYPE STRING,
DOBI1 TYPE STRING,
DOAB2 TYPE STRING,
DOBI2 TYPE STRING,
FRAB1 TYPE STRING,
FRBI1 TYPE STRING,
FRAB2 TYPE STRING,
FRBI2 TYPE STRING,
SAAB1 TYPE STRING,
SABI1 TYPE STRING,
SAAB2 TYPE STRING,
SABI2 TYPE STRING,
SOAB1 TYPE STRING,
SOBI1 TYPE STRING,
SOAB2 TYPE STRING,
SOBI2 TYPE STRING,
STCEG TYPE STRING,
TAXK1 TYPE STRING,
TAXK2 TYPE STRING,
TAXK3 TYPE STRING,
TAXK4 TYPE STRING,
TAXK5 TYPE STRING,
TAXK6 TYPE STRING,
TAXK7 TYPE STRING,
TAXK8 TYPE STRING,
TAXK9 TYPE STRING,
REGIO TYPE STRING,
COUNC TYPE STRING,
CITYC TYPE STRING,
TXJCD TYPE STRING,
STDOK TYPE STRING,
DWERK TYPE STRING,
LIFSD TYPE STRING,
AUFSD TYPE STRING,
VSORT TYPE STRING,
VSBED TYPE STRING,
XCPDK TYPE STRING,
KTOKD TYPE STRING,
KNREF TYPE STRING,
PERIV TYPE STRING,
PRAT1 TYPE STRING,
PRAT2 TYPE STRING,
PRAT3 TYPE STRING,
PRAT4 TYPE STRING,
PRAT5 TYPE STRING,
PRAT6 TYPE STRING,
PRAT7 TYPE STRING,
PRAT8 TYPE STRING,
PRAT9 TYPE STRING,
PRATA TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
WERKS TYPE STRING,
TXTPA TYPE STRING,
DUMMY TYPE STRING,
ADRNR TYPE STRING,
ADDRESS_TYPE TYPE STRING,
DEAR5 TYPE STRING,
PODKZ TYPE STRING,
PODTG TYPE STRING,
CVP_XBLCK TYPE STRING,
DELIVERY_DATE_RULE TYPE STRING,
ADRNP TYPE STRING,
ADRDA TYPE STRING,
ASSIGNED_BP TYPE STRING,
INCOV TYPE STRING,
INCO2_L TYPE STRING,
INCO3_L TYPE STRING,
FSH_MSOCDC TYPE STRING,
FSH_MSOPID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KUWEV_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_KUWEV_STR-KUNNR sy-vline 
WA_KUWEV_STR-NAME1 sy-vline 
WA_KUWEV_STR-STRAS sy-vline 
WA_KUWEV_STR-PFACH sy-vline 
WA_KUWEV_STR-PSTLZ sy-vline 
WA_KUWEV_STR-PSTL2 sy-vline 
WA_KUWEV_STR-ORT01 sy-vline 
WA_KUWEV_STR-SPRAS sy-vline 
WA_KUWEV_STR-LAND1 sy-vline 
WA_KUWEV_STR-LZONE sy-vline 
WA_KUWEV_STR-BAHNS sy-vline 
WA_KUWEV_STR-BAHNE sy-vline 
WA_KUWEV_STR-TELF1 sy-vline 
WA_KUWEV_STR-ABLAD sy-vline 
WA_KUWEV_STR-KNFAK sy-vline 
WA_KUWEV_STR-WATSI sy-vline 
WA_KUWEV_STR-WANID sy-vline 
WA_KUWEV_STR-MOAB1 sy-vline 
WA_KUWEV_STR-MOBI1 sy-vline 
WA_KUWEV_STR-MOAB2 sy-vline 
WA_KUWEV_STR-MOBI2 sy-vline 
WA_KUWEV_STR-DIAB1 sy-vline 
WA_KUWEV_STR-DIBI1 sy-vline 
WA_KUWEV_STR-DIAB2 sy-vline 
WA_KUWEV_STR-DIBI2 sy-vline 
WA_KUWEV_STR-MIAB1 sy-vline 
WA_KUWEV_STR-MIBI1 sy-vline 
WA_KUWEV_STR-MIAB2 sy-vline 
WA_KUWEV_STR-MIBI2 sy-vline 
WA_KUWEV_STR-DOAB1 sy-vline 
WA_KUWEV_STR-DOBI1 sy-vline 
WA_KUWEV_STR-DOAB2 sy-vline 
WA_KUWEV_STR-DOBI2 sy-vline 
WA_KUWEV_STR-FRAB1 sy-vline 
WA_KUWEV_STR-FRBI1 sy-vline 
WA_KUWEV_STR-FRAB2 sy-vline 
WA_KUWEV_STR-FRBI2 sy-vline 
WA_KUWEV_STR-SAAB1 sy-vline 
WA_KUWEV_STR-SABI1 sy-vline 
WA_KUWEV_STR-SAAB2 sy-vline 
WA_KUWEV_STR-SABI2 sy-vline 
WA_KUWEV_STR-SOAB1 sy-vline 
WA_KUWEV_STR-SOBI1 sy-vline 
WA_KUWEV_STR-SOAB2 sy-vline 
WA_KUWEV_STR-SOBI2 sy-vline 
WA_KUWEV_STR-STCEG sy-vline 
WA_KUWEV_STR-TAXK1 sy-vline 
WA_KUWEV_STR-TAXK2 sy-vline 
WA_KUWEV_STR-TAXK3 sy-vline 
WA_KUWEV_STR-TAXK4 sy-vline 
WA_KUWEV_STR-TAXK5 sy-vline 
WA_KUWEV_STR-TAXK6 sy-vline 
WA_KUWEV_STR-TAXK7 sy-vline 
WA_KUWEV_STR-TAXK8 sy-vline 
WA_KUWEV_STR-TAXK9 sy-vline 
WA_KUWEV_STR-REGIO sy-vline 
WA_KUWEV_STR-COUNC sy-vline 
WA_KUWEV_STR-CITYC sy-vline 
WA_KUWEV_STR-TXJCD sy-vline 
WA_KUWEV_STR-STDOK sy-vline 
WA_KUWEV_STR-DWERK sy-vline 
WA_KUWEV_STR-LIFSD sy-vline 
WA_KUWEV_STR-AUFSD sy-vline 
WA_KUWEV_STR-VSORT sy-vline 
WA_KUWEV_STR-VSBED sy-vline 
WA_KUWEV_STR-XCPDK sy-vline 
WA_KUWEV_STR-KTOKD sy-vline 
WA_KUWEV_STR-KNREF sy-vline 
WA_KUWEV_STR-PERIV sy-vline 
WA_KUWEV_STR-PRAT1 sy-vline 
WA_KUWEV_STR-PRAT2 sy-vline 
WA_KUWEV_STR-PRAT3 sy-vline 
WA_KUWEV_STR-PRAT4 sy-vline 
WA_KUWEV_STR-PRAT5 sy-vline 
WA_KUWEV_STR-PRAT6 sy-vline 
WA_KUWEV_STR-PRAT7 sy-vline 
WA_KUWEV_STR-PRAT8 sy-vline 
WA_KUWEV_STR-PRAT9 sy-vline 
WA_KUWEV_STR-PRATA sy-vline 
WA_KUWEV_STR-INCO1 sy-vline 
WA_KUWEV_STR-INCO2 sy-vline 
WA_KUWEV_STR-WERKS sy-vline 
WA_KUWEV_STR-TXTPA sy-vline 
WA_KUWEV_STR-DUMMY sy-vline 
WA_KUWEV_STR-ADRNR sy-vline 
WA_KUWEV_STR-ADDRESS_TYPE sy-vline 
WA_KUWEV_STR-DEAR5 sy-vline 
WA_KUWEV_STR-PODKZ sy-vline 
WA_KUWEV_STR-PODTG sy-vline 
WA_KUWEV_STR-CVP_XBLCK sy-vline 
WA_KUWEV_STR-DELIVERY_DATE_RULE sy-vline 
WA_KUWEV_STR-ADRNP sy-vline 
WA_KUWEV_STR-ADRDA sy-vline 
WA_KUWEV_STR-ASSIGNED_BP sy-vline 
WA_KUWEV_STR-INCOV sy-vline 
WA_KUWEV_STR-INCO2_L sy-vline 
WA_KUWEV_STR-INCO3_L sy-vline 
WA_KUWEV_STR-FSH_MSOCDC sy-vline 
WA_KUWEV_STR-FSH_MSOPID sy-vline      INTO ld_text SEPARATED BY SPACE.

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