ABAP Select data from SAP table /BEV3/CHVT1000A1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV3/CHVT1000A1 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 /BEV3/CHVT1000A1. 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 /BEV3/CHVT1000A1 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_/BEV3/CHVT1000A1 TYPE STANDARD TABLE OF /BEV3/CHVT1000A1,
      WA_/BEV3/CHVT1000A1 TYPE /BEV3/CHVT1000A1,
      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: </BEV3/CHVT1000A1> TYPE /BEV3/CHVT1000A1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV3/CHVT1000A1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV3/CHVT1000A1
  INTO TABLE IT_/BEV3/CHVT1000A1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV3/CHVT1000A1
*  INTO TABLE @DATA(IT_/BEV3/CHVT1000A12).
*--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_/BEV3/CHVT1000A1 INDEX 1 INTO DATA(WA_/BEV3/CHVT1000A12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV3/CHVT1000A1 ASSIGNING </BEV3/CHVT1000A1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV3/CHVT1000A1>-YVORGE = 1.
</BEV3/CHVT1000A1>-VWDART = 1.
</BEV3/CHVT1000A1>-YVWDNR = 1.
</BEV3/CHVT1000A1>-VBKL = 1.
</BEV3/CHVT1000A1>-RI = 1.

ENDLOOP.

LOOP AT IT_/BEV3/CHVT1000A1 INTO WA_/BEV3/CHVT1000A1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV3/CHVT1000A1-VBIN, sy-vline,
  WA_/BEV3/CHVT1000A1-VBNR, sy-vline,
  WA_/BEV3/CHVT1000A1-VBDTA, sy-vline,
  WA_/BEV3/CHVT1000A1-VBDTB, sy-vline,
  WA_/BEV3/CHVT1000A1-VBSTEU, sy-vline,
  WA_/BEV3/CHVT1000A1-VBSTIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV3/CHVT1000A1 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_/BEV3/CHVT1000A1 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_/BEV3/CHVT1000A1 INTO WA_/BEV3/CHVT1000A1.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/BEV3/CHVT1000A1_STR, 
YVORGE TYPE STRING,
VWDART TYPE STRING,
YVWDNR TYPE STRING,
VBKL TYPE STRING,
RI TYPE STRING,
VBIN TYPE STRING,
VBNR TYPE STRING,
VBDTA TYPE STRING,
VBDTB TYPE STRING,
VBSTEU TYPE STRING,
VBSTIN TYPE STRING,
BINST60 TYPE STRING,
VBDTS TYPE STRING,
YVVA900001 TYPE STRING,
YVVA910001 TYPE STRING,
CHVT100001 TYPE STRING,
ABZEITPKT TYPE STRING,
TMFREIGABE TYPE STRING,
PERIODNGRP TYPE STRING,
ABZPKTST1 TYPE STRING,
TERMINVERW TYPE STRING,
TMST_ABR TYPE STRING,
TMST_MANU TYPE STRING,
TMST_EREIG TYPE STRING,
TMST_BK TYPE STRING,
TMST_PER TYPE STRING,
TMST_NOT_PER TYPE STRING,
TMST_TM TYPE STRING,
TERMINFLG TYPE STRING,
TMERG TYPE STRING,
ERGSTART TYPE STRING,
ERGEND TYPE STRING,
PRTSTRT TYPE STRING,
CHVT100003 TYPE STRING,
ABRCHNENDE TYPE STRING,
ABRCHNLFNR TYPE STRING,
CHVT100002 TYPE STRING,
CHVT100004 TYPE STRING,
ABRDAT_L TYPE STRING,
PERND_LANF TYPE STRING,
CHVT100005 TYPE STRING,
BEDINGG30 TYPE STRING,
BEDINGG31 TYPE STRING,
BEDINGG32 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV3/CHVT1000A1_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_/BEV3/CHVT1000A1_STR-YVORGE sy-vline 
WA_/BEV3/CHVT1000A1_STR-VWDART sy-vline 
WA_/BEV3/CHVT1000A1_STR-YVWDNR sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBKL sy-vline 
WA_/BEV3/CHVT1000A1_STR-RI sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBIN sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBNR sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBDTA sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBDTB sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBSTEU sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBSTIN sy-vline 
WA_/BEV3/CHVT1000A1_STR-BINST60 sy-vline 
WA_/BEV3/CHVT1000A1_STR-VBDTS sy-vline 
WA_/BEV3/CHVT1000A1_STR-YVVA900001 sy-vline 
WA_/BEV3/CHVT1000A1_STR-YVVA910001 sy-vline 
WA_/BEV3/CHVT1000A1_STR-CHVT100001 sy-vline 
WA_/BEV3/CHVT1000A1_STR-ABZEITPKT sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMFREIGABE sy-vline 
WA_/BEV3/CHVT1000A1_STR-PERIODNGRP sy-vline 
WA_/BEV3/CHVT1000A1_STR-ABZPKTST1 sy-vline 
WA_/BEV3/CHVT1000A1_STR-TERMINVERW sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMST_ABR sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMST_MANU sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMST_EREIG sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMST_BK sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMST_PER sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMST_NOT_PER sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMST_TM sy-vline 
WA_/BEV3/CHVT1000A1_STR-TERMINFLG sy-vline 
WA_/BEV3/CHVT1000A1_STR-TMERG sy-vline 
WA_/BEV3/CHVT1000A1_STR-ERGSTART sy-vline 
WA_/BEV3/CHVT1000A1_STR-ERGEND sy-vline 
WA_/BEV3/CHVT1000A1_STR-PRTSTRT sy-vline 
WA_/BEV3/CHVT1000A1_STR-CHVT100003 sy-vline 
WA_/BEV3/CHVT1000A1_STR-ABRCHNENDE sy-vline 
WA_/BEV3/CHVT1000A1_STR-ABRCHNLFNR sy-vline 
WA_/BEV3/CHVT1000A1_STR-CHVT100002 sy-vline 
WA_/BEV3/CHVT1000A1_STR-CHVT100004 sy-vline 
WA_/BEV3/CHVT1000A1_STR-ABRDAT_L sy-vline 
WA_/BEV3/CHVT1000A1_STR-PERND_LANF sy-vline 
WA_/BEV3/CHVT1000A1_STR-CHVT100005 sy-vline 
WA_/BEV3/CHVT1000A1_STR-BEDINGG30 sy-vline 
WA_/BEV3/CHVT1000A1_STR-BEDINGG31 sy-vline 
WA_/BEV3/CHVT1000A1_STR-BEDINGG32 sy-vline      INTO ld_text SEPARATED BY SPACE.

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