ABAP Select data from SAP table VVKK_COINS_HIST_DISPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVKK_COINS_HIST_DISPL
*  INTO TABLE @DATA(IT_VVKK_COINS_HIST_DISPL2).
*--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_VVKK_COINS_HIST_DISPL INDEX 1 INTO DATA(WA_VVKK_COINS_HIST_DISPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVKK_COINS_HIST_DISPL>-OPBEL = 1.
<VVKK_COINS_HIST_DISPL>-DOC_TYPE = 1.
<VVKK_COINS_HIST_DISPL>-DOC_LINK = 1.
<VVKK_COINS_HIST_DISPL>-REPID = 1.
<VVKK_COINS_HIST_DISPL>-XPLPR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVKK_COINS_HIST_DISPL-INSOBJECT, sy-vline,
  WA_VVKK_COINS_HIST_DISPL-PARTNER, sy-vline,
  WA_VVKK_COINS_HIST_DISPL-BUKRS, sy-vline,
  WA_VVKK_COINS_HIST_DISPL-FAEDN, sy-vline,
  WA_VVKK_COINS_HIST_DISPL-WAERS, sy-vline,
  WA_VVKK_COINS_HIST_DISPL-XBLNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVKK_COINS_HIST_DISPL 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_VVKK_COINS_HIST_DISPL 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_VVKK_COINS_HIST_DISPL INTO WA_VVKK_COINS_HIST_DISPL.


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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field REVERSAL_DOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKK_COINS_HIST_DISPL-REVERSAL_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKK_COINS_HIST_DISPL-REVERSAL_DOC.
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_VVKK_COINS_HIST_DISPL_STR, 
OPBEL TYPE STRING,
DOC_TYPE TYPE STRING,
DOC_LINK TYPE STRING,
REPID TYPE STRING,
XPLPR TYPE STRING,
INSOBJECT TYPE STRING,
PARTNER TYPE STRING,
BUKRS TYPE STRING,
FAEDN TYPE STRING,
WAERS TYPE STRING,
XBLNR TYPE STRING,
DOC_REF TYPE STRING,
DOC_REF_TYPE TYPE STRING,
AMOUNT_ALL TYPE STRING,
AMOUNT_TO_TRANSF TYPE STRING,
CLEARING_AMOUNT_ALL TYPE STRING,
CLEARING_AMOUNT TYPE STRING,
AMOUNT_TO_TRANS_DEBIT TYPE STRING,
AMOUNT_TO_TRANS_CREDIT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
DOC_CREATED TYPE STRING,
DOC_CREATED_SRC TYPE STRING,
REVERSAL_DOC TYPE STRING,
CREATION_DATE TYPE STRING,
CREATION_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVKK_COINS_HIST_DISPL_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_VVKK_COINS_HIST_DISPL_STR-OPBEL sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-DOC_TYPE sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-DOC_LINK sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-REPID sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-XPLPR sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-INSOBJECT sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-PARTNER sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-BUKRS sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-FAEDN sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-WAERS sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-XBLNR sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-DOC_REF sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-DOC_REF_TYPE sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-AMOUNT_ALL sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-AMOUNT_TO_TRANSF sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-CLEARING_AMOUNT_ALL sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-CLEARING_AMOUNT sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-AMOUNT_TO_TRANS_DEBIT sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-AMOUNT_TO_TRANS_CREDIT sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-LAUFD sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-LAUFI sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-DOC_CREATED sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-DOC_CREATED_SRC sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-REVERSAL_DOC sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-CREATION_DATE sy-vline 
WA_VVKK_COINS_HIST_DISPL_STR-CREATION_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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