ABAP Select data from SAP table KKRCOUNT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKRCOUNT
*  INTO TABLE @DATA(IT_KKRCOUNT2).
*--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_KKRCOUNT INDEX 1 INTO DATA(WA_KKRCOUNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKRCOUNT>-ALT = 1.
<KKRCOUNT>-UNV = 1.
<KKRCOUNT>-UPD = 1.
<KKRCOUNT>-DEL = 1.
<KKRCOUNT>-INS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKRCOUNT-OBJANZ, sy-vline,
  WA_KKRCOUNT-TIME1, sy-vline,
  WA_KKRCOUNT-TIME2, sy-vline,
  WA_KKRCOUNT-TIME3, sy-vline,
  WA_KKRCOUNT-TIME4, sy-vline,
  WA_KKRCOUNT-TASK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKRCOUNT 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_KKRCOUNT 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_KKRCOUNT INTO WA_KKRCOUNT.


*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_KKRCOUNT_STR, 
ALT TYPE STRING,
UNV TYPE STRING,
UPD TYPE STRING,
DEL TYPE STRING,
INS TYPE STRING,
OBJANZ TYPE STRING,
TIME1 TYPE STRING,
TIME2 TYPE STRING,
TIME3 TYPE STRING,
TIME4 TYPE STRING,
TASK TYPE STRING,
HOST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKRCOUNT_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_KKRCOUNT_STR-ALT sy-vline 
WA_KKRCOUNT_STR-UNV sy-vline 
WA_KKRCOUNT_STR-UPD sy-vline 
WA_KKRCOUNT_STR-DEL sy-vline 
WA_KKRCOUNT_STR-INS sy-vline 
WA_KKRCOUNT_STR-OBJANZ sy-vline 
WA_KKRCOUNT_STR-TIME1 sy-vline 
WA_KKRCOUNT_STR-TIME2 sy-vline 
WA_KKRCOUNT_STR-TIME3 sy-vline 
WA_KKRCOUNT_STR-TIME4 sy-vline 
WA_KKRCOUNT_STR-TASK sy-vline 
WA_KKRCOUNT_STR-HOST sy-vline      INTO ld_text SEPARATED BY SPACE.

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