ABAP Select data from SAP table TKKV033C_CUST2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TKKV033C_CUST2 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 TKKV033C_CUST2. 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 TKKV033C_CUST2 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_TKKV033C_CUST2 TYPE STANDARD TABLE OF TKKV033C_CUST2,
      WA_TKKV033C_CUST2 TYPE TKKV033C_CUST2,
      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: <TKKV033C_CUST2> TYPE TKKV033C_CUST2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TKKV033C_CUST2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TKKV033C_CUST2
  INTO TABLE IT_TKKV033C_CUST2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TKKV033C_CUST2
*  INTO TABLE @DATA(IT_TKKV033C_CUST22).
*--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_TKKV033C_CUST2 INDEX 1 INTO DATA(WA_TKKV033C_CUST22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TKKV033C_CUST2 ASSIGNING <TKKV033C_CUST2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TKKV033C_CUST2>-APPLK = 1.
<TKKV033C_CUST2>-BUBER = 1.
<TKKV033C_CUST2>-KCHB1 = 1.
<TKKV033C_CUST2>-KCHB2 = 1.
<TKKV033C_CUST2>-KCHB3 = 1.

ENDLOOP.

LOOP AT IT_TKKV033C_CUST2 INTO WA_TKKV033C_CUST2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TKKV033C_CUST2-KCHB4, sy-vline,
  WA_TKKV033C_CUST2-KCHB5, sy-vline,
  WA_TKKV033C_CUST2-FCHB1, sy-vline,
  WA_TKKV033C_CUST2-FCHB2, sy-vline,
  WA_TKKV033C_CUST2-FCHB3, sy-vline,
  WA_TKKV033C_CUST2-FCHB4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TKKV033C_CUST2 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_TKKV033C_CUST2 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_TKKV033C_CUST2 INTO WA_TKKV033C_CUST2.


*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_TKKV033C_CUST2_STR, 
APPLK TYPE STRING,
BUBER TYPE STRING,
KCHB1 TYPE STRING,
KCHB2 TYPE STRING,
KCHB3 TYPE STRING,
KCHB4 TYPE STRING,
KCHB5 TYPE STRING,
FCHB1 TYPE STRING,
FCHB2 TYPE STRING,
FCHB3 TYPE STRING,
FCHB4 TYPE STRING,
FCHB5 TYPE STRING,
FCHB6 TYPE STRING,
KCHS1 TYPE STRING,
KCHS2 TYPE STRING,
KCHS3 TYPE STRING,
KCHS4 TYPE STRING,
KCHS5 TYPE STRING,
FCHS1 TYPE STRING,
FCHS2 TYPE STRING,
FCHS3 TYPE STRING,
FCHS4 TYPE STRING,
FCHS5 TYPE STRING,
FCHS6 TYPE STRING,
KCHT1 TYPE STRING,
KCHT2 TYPE STRING,
KCHT3 TYPE STRING,
KCHT4 TYPE STRING,
KCHT5 TYPE STRING,
FCHT1 TYPE STRING,
FCHT2 TYPE STRING,
FCHT3 TYPE STRING,
FCHT4 TYPE STRING,
FCHT5 TYPE STRING,
FCHT6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TKKV033C_CUST2_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_TKKV033C_CUST2_STR-APPLK sy-vline 
WA_TKKV033C_CUST2_STR-BUBER sy-vline 
WA_TKKV033C_CUST2_STR-KCHB1 sy-vline 
WA_TKKV033C_CUST2_STR-KCHB2 sy-vline 
WA_TKKV033C_CUST2_STR-KCHB3 sy-vline 
WA_TKKV033C_CUST2_STR-KCHB4 sy-vline 
WA_TKKV033C_CUST2_STR-KCHB5 sy-vline 
WA_TKKV033C_CUST2_STR-FCHB1 sy-vline 
WA_TKKV033C_CUST2_STR-FCHB2 sy-vline 
WA_TKKV033C_CUST2_STR-FCHB3 sy-vline 
WA_TKKV033C_CUST2_STR-FCHB4 sy-vline 
WA_TKKV033C_CUST2_STR-FCHB5 sy-vline 
WA_TKKV033C_CUST2_STR-FCHB6 sy-vline 
WA_TKKV033C_CUST2_STR-KCHS1 sy-vline 
WA_TKKV033C_CUST2_STR-KCHS2 sy-vline 
WA_TKKV033C_CUST2_STR-KCHS3 sy-vline 
WA_TKKV033C_CUST2_STR-KCHS4 sy-vline 
WA_TKKV033C_CUST2_STR-KCHS5 sy-vline 
WA_TKKV033C_CUST2_STR-FCHS1 sy-vline 
WA_TKKV033C_CUST2_STR-FCHS2 sy-vline 
WA_TKKV033C_CUST2_STR-FCHS3 sy-vline 
WA_TKKV033C_CUST2_STR-FCHS4 sy-vline 
WA_TKKV033C_CUST2_STR-FCHS5 sy-vline 
WA_TKKV033C_CUST2_STR-FCHS6 sy-vline 
WA_TKKV033C_CUST2_STR-KCHT1 sy-vline 
WA_TKKV033C_CUST2_STR-KCHT2 sy-vline 
WA_TKKV033C_CUST2_STR-KCHT3 sy-vline 
WA_TKKV033C_CUST2_STR-KCHT4 sy-vline 
WA_TKKV033C_CUST2_STR-KCHT5 sy-vline 
WA_TKKV033C_CUST2_STR-FCHT1 sy-vline 
WA_TKKV033C_CUST2_STR-FCHT2 sy-vline 
WA_TKKV033C_CUST2_STR-FCHT3 sy-vline 
WA_TKKV033C_CUST2_STR-FCHT4 sy-vline 
WA_TKKV033C_CUST2_STR-FCHT5 sy-vline 
WA_TKKV033C_CUST2_STR-FCHT6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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