ABAP Select data from SAP table V_TFKCRESCHRC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TFKCRESCHRC
*  INTO TABLE @DATA(IT_V_TFKCRESCHRC2).
*--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_V_TFKCRESCHRC INDEX 1 INTO DATA(WA_V_TFKCRESCHRC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TFKCRESCHRC>-MANDT = 1.
<V_TFKCRESCHRC>-BUKRS = 1.
<V_TFKCRESCHRC>-ESCHRC = 1.
<V_TFKCRESCHRC>-TEXT = 1.
<V_TFKCRESCHRC>-ESCHDAYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TFKCRESCHRC-ESCHPROCDAYS, sy-vline,
  WA_V_TFKCRESCHRC-ESCHMINAMNT, sy-vline,
  WA_V_TFKCRESCHRC-ESCHCURR, sy-vline,
  WA_V_TFKCRESCHRC-ESCHHKONT, sy-vline,
  WA_V_TFKCRESCHRC-ESCHGPART, sy-vline,
  WA_V_TFKCRESCHRC-ESCHVKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TFKCRESCHRC 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_V_TFKCRESCHRC 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_V_TFKCRESCHRC INTO WA_V_TFKCRESCHRC.


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

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

*Conversion exit ALPHA, internal->external for field ESCHVKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TFKCRESCHRC-ESCHVKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TFKCRESCHRC-ESCHVKONT.
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_V_TFKCRESCHRC_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ESCHRC TYPE STRING,
TEXT TYPE STRING,
ESCHDAYS TYPE STRING,
ESCHPROCDAYS TYPE STRING,
ESCHMINAMNT TYPE STRING,
ESCHCURR TYPE STRING,
ESCHHKONT TYPE STRING,
ESCHGPART TYPE STRING,
ESCHVKONT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TFKCRESCHRC_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_V_TFKCRESCHRC_STR-MANDT sy-vline 
WA_V_TFKCRESCHRC_STR-BUKRS sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHRC sy-vline 
WA_V_TFKCRESCHRC_STR-TEXT sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHDAYS sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHPROCDAYS sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHMINAMNT sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHCURR sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHHKONT sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHGPART sy-vline 
WA_V_TFKCRESCHRC_STR-ESCHVKONT sy-vline      INTO ld_text SEPARATED BY SPACE.

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