ABAP Select data from SAP table BUFFER_VICN01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BUFFER_VICN01 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 BUFFER_VICN01. 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 BUFFER_VICN01 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_BUFFER_VICN01 TYPE STANDARD TABLE OF BUFFER_VICN01,
      WA_BUFFER_VICN01 TYPE BUFFER_VICN01,
      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: <BUFFER_VICN01> TYPE BUFFER_VICN01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BUFFER_VICN01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BUFFER_VICN01
  INTO TABLE IT_BUFFER_VICN01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BUFFER_VICN01
*  INTO TABLE @DATA(IT_BUFFER_VICN012).
*--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_BUFFER_VICN01 INDEX 1 INTO DATA(WA_BUFFER_VICN012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BUFFER_VICN01 ASSIGNING <BUFFER_VICN01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BUFFER_VICN01>-MANDT = 1.
<BUFFER_VICN01>-INTRENO = 1.
<BUFFER_VICN01>-BUKRS = 1.
<BUFFER_VICN01>-RECNTYPE = 1.
<BUFFER_VICN01>-RECNNR = 1.

ENDLOOP.

LOOP AT IT_BUFFER_VICN01 INTO WA_BUFFER_VICN01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BUFFER_VICN01-RECNDAT, sy-vline,
  WA_BUFFER_VICN01-RECNBEG, sy-vline,
  WA_BUFFER_VICN01-RECNEND, sy-vline,
  WA_BUFFER_VICN01-RECNADJT, sy-vline,
  WA_BUFFER_VICN01-RECNTXT, sy-vline,
  WA_BUFFER_VICN01-RECNDPO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BUFFER_VICN01 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_BUFFER_VICN01 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_BUFFER_VICN01 INTO WA_BUFFER_VICN01.


*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 RECNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNPRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-IMKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECNUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNKUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNKUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNKUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNLIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNLIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNLIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNTXTOLD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNTXTOLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNTXTOLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNNRCOLLECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNNRCOLLECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNNRCOLLECT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNKOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNKOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNKOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-SPARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-SPARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RELSOWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RELSOWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RELSOWNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field RECNENDABS
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-RECNENDABS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-RECNENDABS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DPTARGETTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUFFER_VICN01-DPTARGETTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUFFER_VICN01-DPTARGETTYPE.
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_BUFFER_VICN01_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
BUKRS TYPE STRING,
RECNTYPE TYPE STRING,
RECNNR TYPE STRING,
RECNDAT TYPE STRING,
RECNBEG TYPE STRING,
RECNEND TYPE STRING,
RECNADJT TYPE STRING,
RECNTXT TYPE STRING,
RECNDPO TYPE STRING,
RECNOBJNR TYPE STRING,
RECNNOTTYPE TYPE STRING,
RECNNOTKEY TYPE STRING,
RECNNOTPER TYPE STRING,
RECNAUTHGR TYPE STRING,
RECNBUSAREA TYPE STRING,
RECNPRCTR TYPE STRING,
RECNACCDETVAL TYPE STRING,
RECNADMONTH TYPE STRING,
RECNDDUNNED TYPE STRING,
RECNDCOMPLNT TYPE STRING,
RECNDCOMPLRC TYPE STRING,
RECNJURISDIC 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,
RECNUNIT TYPE STRING,
RECNKUNNR TYPE STRING,
RECNLIFNR TYPE STRING,
RECNTXJCD TYPE STRING,
RECNCURR TYPE STRING,
RECNTLAW TYPE STRING,
RECNCURR2 TYPE STRING,
RECNTXTOLD TYPE STRING,
RECNDACTIV TYPE STRING,
RECNNRCOLLECT TYPE STRING,
RECNKOSTL TYPE STRING,
ZLSCH TYPE STRING,
RECNPREDATA TYPE STRING,
SPARTNR TYPE STRING,
RECNNOTRECEIPT TYPE STRING,
RECNNOTREASON TYPE STRING,
RECNNOTINVREA TYPE STRING,
RECNJVSTOPT TYPE STRING,
RECNVSTSOND TYPE STRING,
RECNMANSP TYPE STRING,
RECNMABER TYPE STRING,
RECNMAHNA TYPE STRING,
RECNMAHNS_D TYPE STRING,
RECNNOTCAT TYPE STRING,
RECNGFZLSCH TYPE STRING,
RECNZLSPR TYPE STRING,
RECNHBKID TYPE STRING,
RECNXBLNR TYPE STRING,
RECNDKUZUG TYPE STRING,
RECNDKUABG TYPE STRING,
RECNDWIKU TYPE STRING,
RECNDKUERCK TYPE STRING,
RECNDKREUEB TYPE STRING,
RECNDAKTKU TYPE STRING,
RECNDSTKU TYPE STRING,
RECNADJTTYPE TYPE STRING,
RECNADJTRUECK TYPE STRING,
RECNBUKRSCOLLECT TYPE STRING,
RECNBASISAEZIF TYPE STRING,
RECNXCROSS TYPE STRING,
RECNMANDAT TYPE STRING,
RECNMANDATTYP TYPE STRING,
RECNFLESR TYPE STRING,
RECNESRNROW TYPE STRING,
RECNESRCUIDOW TYPE STRING,
RECNVATNROW TYPE STRING,
RECNBUKRSGKT TYPE STRING,
RECNKZEIGGKT TYPE STRING,
RELSKASSENZ TYPE STRING,
RELSGRDNR TYPE STRING,
RELSSUBTYPE TYPE STRING,
RELSAKTZ TYPE STRING,
RELSDAT2 TYPE STRING,
RELSWIRTUEBG TYPE STRING,
RELSNOTEARLY TYPE STRING,
RELSOWNER TYPE STRING,
RELSROLETYP TYPE STRING,
CREATIONTYPE TYPE STRING,
RECNCNCURR TYPE STRING,
RECNENDABS TYPE STRING,
RECN2DAT TYPE STRING,
RESPONSIBLE TYPE STRING,
USEREXCLUSIVE TYPE STRING,
SRRELEVANT TYPE STRING,
CFARCHIVEDTO TYPE STRING,
CFLOCKEDTO TYPE STRING,
INDUSTRY TYPE STRING,
DPTARGETTYPE TYPE STRING,
BIRELEASE TYPE STRING,
BIVALIDFROM TYPE STRING,
BIVALIDTO TYPE STRING,
BIREPRTO TYPE STRING,
BIREPRTOTIME TYPE STRING,
BIRECAT TYPE STRING,
PUBLICTYPE TYPE STRING,
FILENO TYPE STRING,
BIPURPOSE TYPE STRING,
BIPRICING TYPE STRING,
NOT_FOUND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BUFFER_VICN01_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_BUFFER_VICN01_STR-MANDT sy-vline 
WA_BUFFER_VICN01_STR-INTRENO sy-vline 
WA_BUFFER_VICN01_STR-BUKRS sy-vline 
WA_BUFFER_VICN01_STR-RECNTYPE sy-vline 
WA_BUFFER_VICN01_STR-RECNNR sy-vline 
WA_BUFFER_VICN01_STR-RECNDAT sy-vline 
WA_BUFFER_VICN01_STR-RECNBEG sy-vline 
WA_BUFFER_VICN01_STR-RECNEND sy-vline 
WA_BUFFER_VICN01_STR-RECNADJT sy-vline 
WA_BUFFER_VICN01_STR-RECNTXT sy-vline 
WA_BUFFER_VICN01_STR-RECNDPO sy-vline 
WA_BUFFER_VICN01_STR-RECNOBJNR sy-vline 
WA_BUFFER_VICN01_STR-RECNNOTTYPE sy-vline 
WA_BUFFER_VICN01_STR-RECNNOTKEY sy-vline 
WA_BUFFER_VICN01_STR-RECNNOTPER sy-vline 
WA_BUFFER_VICN01_STR-RECNAUTHGR sy-vline 
WA_BUFFER_VICN01_STR-RECNBUSAREA sy-vline 
WA_BUFFER_VICN01_STR-RECNPRCTR sy-vline 
WA_BUFFER_VICN01_STR-RECNACCDETVAL sy-vline 
WA_BUFFER_VICN01_STR-RECNADMONTH sy-vline 
WA_BUFFER_VICN01_STR-RECNDDUNNED sy-vline 
WA_BUFFER_VICN01_STR-RECNDCOMPLNT sy-vline 
WA_BUFFER_VICN01_STR-RECNDCOMPLRC sy-vline 
WA_BUFFER_VICN01_STR-RECNJURISDIC sy-vline 
WA_BUFFER_VICN01_STR-IMKEY sy-vline 
WA_BUFFER_VICN01_STR-RERF sy-vline 
WA_BUFFER_VICN01_STR-DERF sy-vline 
WA_BUFFER_VICN01_STR-TERF sy-vline 
WA_BUFFER_VICN01_STR-REHER sy-vline 
WA_BUFFER_VICN01_STR-RBEAR sy-vline 
WA_BUFFER_VICN01_STR-DBEAR sy-vline 
WA_BUFFER_VICN01_STR-TBEAR sy-vline 
WA_BUFFER_VICN01_STR-RBHER sy-vline 
WA_BUFFER_VICN01_STR-RECNUNIT sy-vline 
WA_BUFFER_VICN01_STR-RECNKUNNR sy-vline 
WA_BUFFER_VICN01_STR-RECNLIFNR sy-vline 
WA_BUFFER_VICN01_STR-RECNTXJCD sy-vline 
WA_BUFFER_VICN01_STR-RECNCURR sy-vline 
WA_BUFFER_VICN01_STR-RECNTLAW sy-vline 
WA_BUFFER_VICN01_STR-RECNCURR2 sy-vline 
WA_BUFFER_VICN01_STR-RECNTXTOLD sy-vline 
WA_BUFFER_VICN01_STR-RECNDACTIV sy-vline 
WA_BUFFER_VICN01_STR-RECNNRCOLLECT sy-vline 
WA_BUFFER_VICN01_STR-RECNKOSTL sy-vline 
WA_BUFFER_VICN01_STR-ZLSCH sy-vline 
WA_BUFFER_VICN01_STR-RECNPREDATA sy-vline 
WA_BUFFER_VICN01_STR-SPARTNR sy-vline 
WA_BUFFER_VICN01_STR-RECNNOTRECEIPT sy-vline 
WA_BUFFER_VICN01_STR-RECNNOTREASON sy-vline 
WA_BUFFER_VICN01_STR-RECNNOTINVREA sy-vline 
WA_BUFFER_VICN01_STR-RECNJVSTOPT sy-vline 
WA_BUFFER_VICN01_STR-RECNVSTSOND sy-vline 
WA_BUFFER_VICN01_STR-RECNMANSP sy-vline 
WA_BUFFER_VICN01_STR-RECNMABER sy-vline 
WA_BUFFER_VICN01_STR-RECNMAHNA sy-vline 
WA_BUFFER_VICN01_STR-RECNMAHNS_D sy-vline 
WA_BUFFER_VICN01_STR-RECNNOTCAT sy-vline 
WA_BUFFER_VICN01_STR-RECNGFZLSCH sy-vline 
WA_BUFFER_VICN01_STR-RECNZLSPR sy-vline 
WA_BUFFER_VICN01_STR-RECNHBKID sy-vline 
WA_BUFFER_VICN01_STR-RECNXBLNR sy-vline 
WA_BUFFER_VICN01_STR-RECNDKUZUG sy-vline 
WA_BUFFER_VICN01_STR-RECNDKUABG sy-vline 
WA_BUFFER_VICN01_STR-RECNDWIKU sy-vline 
WA_BUFFER_VICN01_STR-RECNDKUERCK sy-vline 
WA_BUFFER_VICN01_STR-RECNDKREUEB sy-vline 
WA_BUFFER_VICN01_STR-RECNDAKTKU sy-vline 
WA_BUFFER_VICN01_STR-RECNDSTKU sy-vline 
WA_BUFFER_VICN01_STR-RECNADJTTYPE sy-vline 
WA_BUFFER_VICN01_STR-RECNADJTRUECK sy-vline 
WA_BUFFER_VICN01_STR-RECNBUKRSCOLLECT sy-vline 
WA_BUFFER_VICN01_STR-RECNBASISAEZIF sy-vline 
WA_BUFFER_VICN01_STR-RECNXCROSS sy-vline 
WA_BUFFER_VICN01_STR-RECNMANDAT sy-vline 
WA_BUFFER_VICN01_STR-RECNMANDATTYP sy-vline 
WA_BUFFER_VICN01_STR-RECNFLESR sy-vline 
WA_BUFFER_VICN01_STR-RECNESRNROW sy-vline 
WA_BUFFER_VICN01_STR-RECNESRCUIDOW sy-vline 
WA_BUFFER_VICN01_STR-RECNVATNROW sy-vline 
WA_BUFFER_VICN01_STR-RECNBUKRSGKT sy-vline 
WA_BUFFER_VICN01_STR-RECNKZEIGGKT sy-vline 
WA_BUFFER_VICN01_STR-RELSKASSENZ sy-vline 
WA_BUFFER_VICN01_STR-RELSGRDNR sy-vline 
WA_BUFFER_VICN01_STR-RELSSUBTYPE sy-vline 
WA_BUFFER_VICN01_STR-RELSAKTZ sy-vline 
WA_BUFFER_VICN01_STR-RELSDAT2 sy-vline 
WA_BUFFER_VICN01_STR-RELSWIRTUEBG sy-vline 
WA_BUFFER_VICN01_STR-RELSNOTEARLY sy-vline 
WA_BUFFER_VICN01_STR-RELSOWNER sy-vline 
WA_BUFFER_VICN01_STR-RELSROLETYP sy-vline 
WA_BUFFER_VICN01_STR-CREATIONTYPE sy-vline 
WA_BUFFER_VICN01_STR-RECNCNCURR sy-vline 
WA_BUFFER_VICN01_STR-RECNENDABS sy-vline 
WA_BUFFER_VICN01_STR-RECN2DAT sy-vline 
WA_BUFFER_VICN01_STR-RESPONSIBLE sy-vline 
WA_BUFFER_VICN01_STR-USEREXCLUSIVE sy-vline 
WA_BUFFER_VICN01_STR-SRRELEVANT sy-vline 
WA_BUFFER_VICN01_STR-CFARCHIVEDTO sy-vline 
WA_BUFFER_VICN01_STR-CFLOCKEDTO sy-vline 
WA_BUFFER_VICN01_STR-INDUSTRY sy-vline 
WA_BUFFER_VICN01_STR-DPTARGETTYPE sy-vline 
WA_BUFFER_VICN01_STR-BIRELEASE sy-vline 
WA_BUFFER_VICN01_STR-BIVALIDFROM sy-vline 
WA_BUFFER_VICN01_STR-BIVALIDTO sy-vline 
WA_BUFFER_VICN01_STR-BIREPRTO sy-vline 
WA_BUFFER_VICN01_STR-BIREPRTOTIME sy-vline 
WA_BUFFER_VICN01_STR-BIRECAT sy-vline 
WA_BUFFER_VICN01_STR-PUBLICTYPE sy-vline 
WA_BUFFER_VICN01_STR-FILENO sy-vline 
WA_BUFFER_VICN01_STR-BIPURPOSE sy-vline 
WA_BUFFER_VICN01_STR-BIPRICING sy-vline 
WA_BUFFER_VICN01_STR-NOT_FOUND sy-vline      INTO ld_text SEPARATED BY SPACE.

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