ABAP Select data from SAP table UMK_YS_KYFPRO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMK_YS_KYFPRO
*  INTO TABLE @DATA(IT_UMK_YS_KYFPRO2).
*--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_UMK_YS_KYFPRO INDEX 1 INTO DATA(WA_UMK_YS_KYFPRO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMK_YS_KYFPRO>-KYFNM = 1.
<UMK_YS_KYFPRO>-KYFTP = 1.
<UMK_YS_KYFPRO>-DATATP = 1.
<UMK_YS_KYFPRO>-INTTP = 1.
<UMK_YS_KYFPRO>-INTLEN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMK_YS_KYFPRO-DECIMALS, sy-vline,
  WA_UMK_YS_KYFPRO-OUTPUTLEN, sy-vline,
  WA_UMK_YS_KYFPRO-DIGITS, sy-vline,
  WA_UMK_YS_KYFPRO-TXTSH, sy-vline,
  WA_UMK_YS_KYFPRO-TXTLG, sy-vline,
  WA_UMK_YS_KYFPRO-FIXCUKY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMK_YS_KYFPRO 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_UMK_YS_KYFPRO 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_UMK_YS_KYFPRO INTO WA_UMK_YS_KYFPRO.


*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 DTYPE, internal->external for field DATATP
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_UMK_YS_KYFPRO-DATATP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UMK_YS_KYFPRO-DATATP.
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_UMK_YS_KYFPRO_STR, 
KYFNM TYPE STRING,
KYFTP TYPE STRING,
DATATP TYPE STRING,
INTTP TYPE STRING,
INTLEN TYPE STRING,
DECIMALS TYPE STRING,
OUTPUTLEN TYPE STRING,
DIGITS TYPE STRING,
TXTSH TYPE STRING,
TXTLG TYPE STRING,
FIXCUKY TYPE STRING,
FIXUNIT TYPE STRING,
FIXUNITEXT TYPE STRING,
UNINM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMK_YS_KYFPRO_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_UMK_YS_KYFPRO_STR-KYFNM sy-vline 
WA_UMK_YS_KYFPRO_STR-KYFTP sy-vline 
WA_UMK_YS_KYFPRO_STR-DATATP sy-vline 
WA_UMK_YS_KYFPRO_STR-INTTP sy-vline 
WA_UMK_YS_KYFPRO_STR-INTLEN sy-vline 
WA_UMK_YS_KYFPRO_STR-DECIMALS sy-vline 
WA_UMK_YS_KYFPRO_STR-OUTPUTLEN sy-vline 
WA_UMK_YS_KYFPRO_STR-DIGITS sy-vline 
WA_UMK_YS_KYFPRO_STR-TXTSH sy-vline 
WA_UMK_YS_KYFPRO_STR-TXTLG sy-vline 
WA_UMK_YS_KYFPRO_STR-FIXCUKY sy-vline 
WA_UMK_YS_KYFPRO_STR-FIXUNIT sy-vline 
WA_UMK_YS_KYFPRO_STR-FIXUNITEXT sy-vline 
WA_UMK_YS_KYFPRO_STR-UNINM sy-vline      INTO ld_text SEPARATED BY SPACE.

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