ABAP Select data from SAP table TKA_IP_CHAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TKA_IP_CHAR
*  INTO TABLE @DATA(IT_TKA_IP_CHAR2).
*--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_TKA_IP_CHAR INDEX 1 INTO DATA(WA_TKA_IP_CHAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TKA_IP_CHAR>-ERPFIELD = 1.
<TKA_IP_CHAR>-ERPDTEL = 1.
<TKA_IP_CHAR>-CHABASNM = 1.
<TKA_IP_CHAR>-CHAPRSNT = 1.
<TKA_IP_CHAR>-NOVALFL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TKA_IP_CHAR-NOLANGU, sy-vline,
  WA_TKA_IP_CHAR-TXTSHFL, sy-vline,
  WA_TKA_IP_CHAR-TXTMDFL, sy-vline,
  WA_TKA_IP_CHAR-TXTLGFL, sy-vline,
  WA_TKA_IP_CHAR-CHATP, sy-vline,
  WA_TKA_IP_CHAR-MDRCLNM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TKA_IP_CHAR 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_TKA_IP_CHAR 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_TKA_IP_CHAR INTO WA_TKA_IP_CHAR.


*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_TKA_IP_CHAR_STR, 
ERPFIELD TYPE STRING,
ERPDTEL TYPE STRING,
CHABASNM TYPE STRING,
CHAPRSNT TYPE STRING,
NOVALFL TYPE STRING,
NOLANGU TYPE STRING,
TXTSHFL TYPE STRING,
TXTMDFL TYPE STRING,
TXTLGFL TYPE STRING,
CHATP TYPE STRING,
MDRCLNM TYPE STRING,
MDRCL_PAR1 TYPE STRING,
MDRCL_PAR2 TYPE STRING,
MDRCL_PAR3 TYPE STRING,
MDRCL_PAR4 TYPE STRING,
MDRCL_PAR5 TYPE STRING,
MDRCL_PAR6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TKA_IP_CHAR_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_TKA_IP_CHAR_STR-ERPFIELD sy-vline 
WA_TKA_IP_CHAR_STR-ERPDTEL sy-vline 
WA_TKA_IP_CHAR_STR-CHABASNM sy-vline 
WA_TKA_IP_CHAR_STR-CHAPRSNT sy-vline 
WA_TKA_IP_CHAR_STR-NOVALFL sy-vline 
WA_TKA_IP_CHAR_STR-NOLANGU sy-vline 
WA_TKA_IP_CHAR_STR-TXTSHFL sy-vline 
WA_TKA_IP_CHAR_STR-TXTMDFL sy-vline 
WA_TKA_IP_CHAR_STR-TXTLGFL sy-vline 
WA_TKA_IP_CHAR_STR-CHATP sy-vline 
WA_TKA_IP_CHAR_STR-MDRCLNM sy-vline 
WA_TKA_IP_CHAR_STR-MDRCL_PAR1 sy-vline 
WA_TKA_IP_CHAR_STR-MDRCL_PAR2 sy-vline 
WA_TKA_IP_CHAR_STR-MDRCL_PAR3 sy-vline 
WA_TKA_IP_CHAR_STR-MDRCL_PAR4 sy-vline 
WA_TKA_IP_CHAR_STR-MDRCL_PAR5 sy-vline 
WA_TKA_IP_CHAR_STR-MDRCL_PAR6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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