ABAP Select data from SAP table VIAKME into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIAKME
*  INTO TABLE @DATA(IT_VIAKME2).
*--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_VIAKME INDEX 1 INTO DATA(WA_VIAKME2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIAKME>-MANDT = 1.
<VIAKME>-BUKRS = 1.
<VIAKME>-SWENR = 1.
<VIAKME>-SMENR = 1.
<VIAKME>-SGRNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIAKME-SGENR, sy-vline,
  WA_VIAKME-SGEBSWENR, sy-vline,
  WA_VIAKME-SGEBSMENR, sy-vline,
  WA_VIAKME-SHEIZNR, sy-vline,
  WA_VIAKME-SNUNR, sy-vline,
  WA_VIAKME-DBEZU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIAKME 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_VIAKME 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_VIAKME INTO WA_VIAKME.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_VIAKME-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAKME-SWENR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit SWENR, internal->external for field SGEBSWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_VIAKME-SGEBSWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAKME-SGEBSWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SGEBSMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_VIAKME-SGEBSMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAKME-SGEBSMENR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_VIAKME-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAKME-VALIDTO.
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_VIAKME_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SMENR TYPE STRING,
SGRNR TYPE STRING,
SGENR TYPE STRING,
SGEBSWENR TYPE STRING,
SGEBSMENR TYPE STRING,
SHEIZNR TYPE STRING,
SNUNR TYPE STRING,
DBEZU TYPE STRING,
DWTVERM TYPE STRING,
UMBRAUM TYPE STRING,
AZIMM TYPE STRING,
AHALBZI TYPE STRING,
STOCK TYPE STRING,
SBELART TYPE STRING,
SHEIZART TYPE STRING,
DRESAB TYPE STRING,
DRESBIS TYPE STRING,
SGEBT TYPE STRING,
SBWNR TYPE STRING,
XAUSTKL TYPE STRING,
XLAGE TYPE STRING,
SMOEBL TYPE STRING,
STECHEM TYPE STRING,
SALTNR TYPE STRING,
DBEGEH TYPE STRING,
XBEGEH TYPE STRING,
JLOESCH TYPE STRING,
PZUABSP TYPE STRING,
PERHOE TYPE STRING,
RPROZGRD TYPE STRING,
DBINDBIS TYPE STRING,
KOSTL TYPE STRING,
RBELBIND TYPE STRING,
RLIFT TYPE STRING,
RMEDIEN TYPE STRING,
RWASSER TYPE STRING,
RLGESCH TYPE STRING,
JVORSTEIG TYPE STRING,
SADRME TYPE STRING,
SNKS TYPE STRING,
IMKEY TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
ABNNR TYPE STRING,
XSTANDNR TYPE STRING,
JEIGWOHN TYPE STRING,
RFAKT TYPE STRING,
PRCTR TYPE STRING,
PROFL TYPE STRING,
KOKRS TYPE STRING,
SSTOCKW TYPE STRING,
JKONDMV TYPE STRING,
PKONDMV TYPE STRING,
DFSTRBIS TYPE STRING,
SSTCKBIS TYPE STRING,
JRMSCHPR TYPE STRING,
DHPZSAKT TYPE STRING,
DUTBKAKT TYPE STRING,
DTEURAKT TYPE STRING,
BRDBRTZZ TYPE STRING,
BRDBRTKD TYPE STRING,
INTRENO TYPE STRING,
XMETXT TYPE STRING,
SBASTEU TYPE STRING,
GSBER TYPE STRING,
DRESTAUR TYPE STRING,
TXJCD TYPE STRING,
DFLOWFIX TYPE STRING,
KOEIGR TYPE STRING,
BERGRP TYPE STRING,
SPOSINMSP TYPE STRING,
PPOSINMSP TYPE STRING,
DFRDVON TYPE STRING,
DFRDBIS TYPE STRING,
SGRUNDB TYPE STRING,
PAUSFW TYPE STRING,
RESADXEYECATCH TYPE STRING,
RESADJINTERNET TYPE STRING,
REFANG TYPE STRING,
ROTYPE TYPE STRING,
ROTYPEEX TYPE STRING,
FLID TYPE STRING,
CANBECOMMON TYPE STRING,
FIRSTPOSTING TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
CREATIONTYPE TYPE STRING,
RESPONSIBLE TYPE STRING,
USEREXCLUSIVE TYPE STRING,
CFARCHIVEDTO TYPE STRING,
CFLOCKEDTO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIAKME_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_VIAKME_STR-MANDT sy-vline 
WA_VIAKME_STR-BUKRS sy-vline 
WA_VIAKME_STR-SWENR sy-vline 
WA_VIAKME_STR-SMENR sy-vline 
WA_VIAKME_STR-SGRNR sy-vline 
WA_VIAKME_STR-SGENR sy-vline 
WA_VIAKME_STR-SGEBSWENR sy-vline 
WA_VIAKME_STR-SGEBSMENR sy-vline 
WA_VIAKME_STR-SHEIZNR sy-vline 
WA_VIAKME_STR-SNUNR sy-vline 
WA_VIAKME_STR-DBEZU sy-vline 
WA_VIAKME_STR-DWTVERM sy-vline 
WA_VIAKME_STR-UMBRAUM sy-vline 
WA_VIAKME_STR-AZIMM sy-vline 
WA_VIAKME_STR-AHALBZI sy-vline 
WA_VIAKME_STR-STOCK sy-vline 
WA_VIAKME_STR-SBELART sy-vline 
WA_VIAKME_STR-SHEIZART sy-vline 
WA_VIAKME_STR-DRESAB sy-vline 
WA_VIAKME_STR-DRESBIS sy-vline 
WA_VIAKME_STR-SGEBT sy-vline 
WA_VIAKME_STR-SBWNR sy-vline 
WA_VIAKME_STR-XAUSTKL sy-vline 
WA_VIAKME_STR-XLAGE sy-vline 
WA_VIAKME_STR-SMOEBL sy-vline 
WA_VIAKME_STR-STECHEM sy-vline 
WA_VIAKME_STR-SALTNR sy-vline 
WA_VIAKME_STR-DBEGEH sy-vline 
WA_VIAKME_STR-XBEGEH sy-vline 
WA_VIAKME_STR-JLOESCH sy-vline 
WA_VIAKME_STR-PZUABSP sy-vline 
WA_VIAKME_STR-PERHOE sy-vline 
WA_VIAKME_STR-RPROZGRD sy-vline 
WA_VIAKME_STR-DBINDBIS sy-vline 
WA_VIAKME_STR-KOSTL sy-vline 
WA_VIAKME_STR-RBELBIND sy-vline 
WA_VIAKME_STR-RLIFT sy-vline 
WA_VIAKME_STR-RMEDIEN sy-vline 
WA_VIAKME_STR-RWASSER sy-vline 
WA_VIAKME_STR-RLGESCH sy-vline 
WA_VIAKME_STR-JVORSTEIG sy-vline 
WA_VIAKME_STR-SADRME sy-vline 
WA_VIAKME_STR-SNKS sy-vline 
WA_VIAKME_STR-IMKEY sy-vline 
WA_VIAKME_STR-RERF sy-vline 
WA_VIAKME_STR-DERF sy-vline 
WA_VIAKME_STR-TERF sy-vline 
WA_VIAKME_STR-REHER sy-vline 
WA_VIAKME_STR-RBEAR sy-vline 
WA_VIAKME_STR-DBEAR sy-vline 
WA_VIAKME_STR-TBEAR sy-vline 
WA_VIAKME_STR-RBHER sy-vline 
WA_VIAKME_STR-ABNNR sy-vline 
WA_VIAKME_STR-XSTANDNR sy-vline 
WA_VIAKME_STR-JEIGWOHN sy-vline 
WA_VIAKME_STR-RFAKT sy-vline 
WA_VIAKME_STR-PRCTR sy-vline 
WA_VIAKME_STR-PROFL sy-vline 
WA_VIAKME_STR-KOKRS sy-vline 
WA_VIAKME_STR-SSTOCKW sy-vline 
WA_VIAKME_STR-JKONDMV sy-vline 
WA_VIAKME_STR-PKONDMV sy-vline 
WA_VIAKME_STR-DFSTRBIS sy-vline 
WA_VIAKME_STR-SSTCKBIS sy-vline 
WA_VIAKME_STR-JRMSCHPR sy-vline 
WA_VIAKME_STR-DHPZSAKT sy-vline 
WA_VIAKME_STR-DUTBKAKT sy-vline 
WA_VIAKME_STR-DTEURAKT sy-vline 
WA_VIAKME_STR-BRDBRTZZ sy-vline 
WA_VIAKME_STR-BRDBRTKD sy-vline 
WA_VIAKME_STR-INTRENO sy-vline 
WA_VIAKME_STR-XMETXT sy-vline 
WA_VIAKME_STR-SBASTEU sy-vline 
WA_VIAKME_STR-GSBER sy-vline 
WA_VIAKME_STR-DRESTAUR sy-vline 
WA_VIAKME_STR-TXJCD sy-vline 
WA_VIAKME_STR-DFLOWFIX sy-vline 
WA_VIAKME_STR-KOEIGR sy-vline 
WA_VIAKME_STR-BERGRP sy-vline 
WA_VIAKME_STR-SPOSINMSP sy-vline 
WA_VIAKME_STR-PPOSINMSP sy-vline 
WA_VIAKME_STR-DFRDVON sy-vline 
WA_VIAKME_STR-DFRDBIS sy-vline 
WA_VIAKME_STR-SGRUNDB sy-vline 
WA_VIAKME_STR-PAUSFW sy-vline 
WA_VIAKME_STR-RESADXEYECATCH sy-vline 
WA_VIAKME_STR-RESADJINTERNET sy-vline 
WA_VIAKME_STR-REFANG sy-vline 
WA_VIAKME_STR-ROTYPE sy-vline 
WA_VIAKME_STR-ROTYPEEX sy-vline 
WA_VIAKME_STR-FLID sy-vline 
WA_VIAKME_STR-CANBECOMMON sy-vline 
WA_VIAKME_STR-FIRSTPOSTING sy-vline 
WA_VIAKME_STR-VALIDFROM sy-vline 
WA_VIAKME_STR-VALIDTO sy-vline 
WA_VIAKME_STR-CREATIONTYPE sy-vline 
WA_VIAKME_STR-RESPONSIBLE sy-vline 
WA_VIAKME_STR-USEREXCLUSIVE sy-vline 
WA_VIAKME_STR-CFARCHIVEDTO sy-vline 
WA_VIAKME_STR-CFLOCKEDTO sy-vline      INTO ld_text SEPARATED BY SPACE.

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