ABAP Select data from SAP table E1CVBKD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1CVBKD 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 E1CVBKD. 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 E1CVBKD 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_E1CVBKD TYPE STANDARD TABLE OF E1CVBKD,
      WA_E1CVBKD TYPE E1CVBKD,
      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: <E1CVBKD> TYPE E1CVBKD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1CVBKD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1CVBKD
  INTO TABLE IT_E1CVBKD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1CVBKD
*  INTO TABLE @DATA(IT_E1CVBKD2).
*--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_E1CVBKD INDEX 1 INTO DATA(WA_E1CVBKD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1CVBKD ASSIGNING <E1CVBKD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1CVBKD>-SUPKZ = 1.
<E1CVBKD>-VBELN = 1.
<E1CVBKD>-POSNR = 1.
<E1CVBKD>-KONDA = 1.
<E1CVBKD>-KDGRP = 1.

ENDLOOP.

LOOP AT IT_E1CVBKD INTO WA_E1CVBKD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1CVBKD-BZIRK, sy-vline,
  WA_E1CVBKD-PLTYP, sy-vline,
  WA_E1CVBKD-INCO1, sy-vline,
  WA_E1CVBKD-INCO2, sy-vline,
  WA_E1CVBKD-KZAZU, sy-vline,
  WA_E1CVBKD-PERFK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1CVBKD 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_E1CVBKD 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_E1CVBKD INTO WA_E1CVBKD.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E1CVBKD-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1CVBKD-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E1CVBKD-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1CVBKD-GJAHR.
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_E1CVBKD_STR, 
SUPKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
KONDA TYPE STRING,
KDGRP TYPE STRING,
BZIRK TYPE STRING,
PLTYP TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
KZAZU TYPE STRING,
PERFK TYPE STRING,
PERRL TYPE STRING,
MRNKZ TYPE STRING,
KURRF TYPE STRING,
VALTG TYPE STRING,
VALDT TYPE STRING,
ZTERM TYPE STRING,
ZLSCH TYPE STRING,
KTGRD TYPE STRING,
KURSK TYPE STRING,
PRSDT TYPE STRING,
FKDAT TYPE STRING,
FBUDA TYPE STRING,
GJAHR TYPE STRING,
POPER TYPE STRING,
STCUR TYPE STRING,
MSCHL TYPE STRING,
MANSP TYPE STRING,
FPLNR TYPE STRING,
MSGFN TYPE STRING,
KURRF_V TYPE STRING,
KURSK_V TYPE STRING,
STCUR_V TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1CVBKD_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_E1CVBKD_STR-SUPKZ sy-vline 
WA_E1CVBKD_STR-VBELN sy-vline 
WA_E1CVBKD_STR-POSNR sy-vline 
WA_E1CVBKD_STR-KONDA sy-vline 
WA_E1CVBKD_STR-KDGRP sy-vline 
WA_E1CVBKD_STR-BZIRK sy-vline 
WA_E1CVBKD_STR-PLTYP sy-vline 
WA_E1CVBKD_STR-INCO1 sy-vline 
WA_E1CVBKD_STR-INCO2 sy-vline 
WA_E1CVBKD_STR-KZAZU sy-vline 
WA_E1CVBKD_STR-PERFK sy-vline 
WA_E1CVBKD_STR-PERRL sy-vline 
WA_E1CVBKD_STR-MRNKZ sy-vline 
WA_E1CVBKD_STR-KURRF sy-vline 
WA_E1CVBKD_STR-VALTG sy-vline 
WA_E1CVBKD_STR-VALDT sy-vline 
WA_E1CVBKD_STR-ZTERM sy-vline 
WA_E1CVBKD_STR-ZLSCH sy-vline 
WA_E1CVBKD_STR-KTGRD sy-vline 
WA_E1CVBKD_STR-KURSK sy-vline 
WA_E1CVBKD_STR-PRSDT sy-vline 
WA_E1CVBKD_STR-FKDAT sy-vline 
WA_E1CVBKD_STR-FBUDA sy-vline 
WA_E1CVBKD_STR-GJAHR sy-vline 
WA_E1CVBKD_STR-POPER sy-vline 
WA_E1CVBKD_STR-STCUR sy-vline 
WA_E1CVBKD_STR-MSCHL sy-vline 
WA_E1CVBKD_STR-MANSP sy-vline 
WA_E1CVBKD_STR-FPLNR sy-vline 
WA_E1CVBKD_STR-MSGFN sy-vline 
WA_E1CVBKD_STR-KURRF_V sy-vline 
WA_E1CVBKD_STR-KURSK_V sy-vline 
WA_E1CVBKD_STR-STCUR_V sy-vline      INTO ld_text SEPARATED BY SPACE.

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