ABAP Select data from SAP table IBKK_NTC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK_NTC
*  INTO TABLE @DATA(IT_IBKK_NTC2).
*--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_IBKK_NTC INDEX 1 INTO DATA(WA_IBKK_NTC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK_NTC>-MANDT = 1.
<IBKK_NTC>-BKKRS = 1.
<IBKK_NTC>-ACNUM_INT = 1.
<IBKK_NTC>-NTCNO = 1.
<IBKK_NTC>-NTCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK_NTC-NTC_DATE_RECEIPT, sy-vline,
  WA_IBKK_NTC-DISPO_PD_START, sy-vline,
  WA_IBKK_NTC-DISPO_PD_END, sy-vline,
  WA_IBKK_NTC-NTC_AMT, sy-vline,
  WA_IBKK_NTC-ACUR, sy-vline,
  WA_IBKK_NTC-NTC_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK_NTC 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_IBKK_NTC 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_IBKK_NTC INTO WA_IBKK_NTC.


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

*Conversion exit ACEXT, internal->external for field ACNUM_EXT
CALL FUNCTION 'CONVERSION_EXIT_ACEXT_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_NTC-ACNUM_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_NTC-ACNUM_EXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_NTC-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_NTC-PARTNER.
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_IBKK_NTC_STR, 
MANDT TYPE STRING,
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
NTCNO TYPE STRING,
NTCTYPE TYPE STRING,
NTC_DATE_RECEIPT TYPE STRING,
DISPO_PD_START TYPE STRING,
DISPO_PD_END TYPE STRING,
NTC_AMT TYPE STRING,
ACUR TYPE STRING,
NTC_STATUS TYPE STRING,
NTC_REAS_KEY TYPE STRING,
XDELE TYPE STRING,
RELEASE_STATUS TYPE STRING,
DECLINE_KEY TYPE STRING,
VRSNO TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
RLUSR TYPE STRING,
RLDAT TYPE STRING,
RLTIM TYPE STRING,
T_BKKRS TYPE STRING,
ACNUM_EXT TYPE STRING,
T_RLTYP TYPE STRING,
PARTNER TYPE STRING,
ACTEXT TYPE STRING,
BALANCE TYPE STRING,
BAL_SIGN TYPE STRING,
BAL_ACUR TYPE STRING,
NTC_REAS_TXT TYPE STRING,
XFLGNTC_NOPD TYPE STRING,
PAORN_TMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK_NTC_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_IBKK_NTC_STR-MANDT sy-vline 
WA_IBKK_NTC_STR-BKKRS sy-vline 
WA_IBKK_NTC_STR-ACNUM_INT sy-vline 
WA_IBKK_NTC_STR-NTCNO sy-vline 
WA_IBKK_NTC_STR-NTCTYPE sy-vline 
WA_IBKK_NTC_STR-NTC_DATE_RECEIPT sy-vline 
WA_IBKK_NTC_STR-DISPO_PD_START sy-vline 
WA_IBKK_NTC_STR-DISPO_PD_END sy-vline 
WA_IBKK_NTC_STR-NTC_AMT sy-vline 
WA_IBKK_NTC_STR-ACUR sy-vline 
WA_IBKK_NTC_STR-NTC_STATUS sy-vline 
WA_IBKK_NTC_STR-NTC_REAS_KEY sy-vline 
WA_IBKK_NTC_STR-XDELE sy-vline 
WA_IBKK_NTC_STR-RELEASE_STATUS sy-vline 
WA_IBKK_NTC_STR-DECLINE_KEY sy-vline 
WA_IBKK_NTC_STR-VRSNO sy-vline 
WA_IBKK_NTC_STR-CRUSR sy-vline 
WA_IBKK_NTC_STR-CRDAT sy-vline 
WA_IBKK_NTC_STR-CRTIM sy-vline 
WA_IBKK_NTC_STR-CHUSR sy-vline 
WA_IBKK_NTC_STR-CHDAT sy-vline 
WA_IBKK_NTC_STR-CHTIM sy-vline 
WA_IBKK_NTC_STR-RLUSR sy-vline 
WA_IBKK_NTC_STR-RLDAT sy-vline 
WA_IBKK_NTC_STR-RLTIM sy-vline 
WA_IBKK_NTC_STR-T_BKKRS sy-vline 
WA_IBKK_NTC_STR-ACNUM_EXT sy-vline 
WA_IBKK_NTC_STR-T_RLTYP sy-vline 
WA_IBKK_NTC_STR-PARTNER sy-vline 
WA_IBKK_NTC_STR-ACTEXT sy-vline 
WA_IBKK_NTC_STR-BALANCE sy-vline 
WA_IBKK_NTC_STR-BAL_SIGN sy-vline 
WA_IBKK_NTC_STR-BAL_ACUR sy-vline 
WA_IBKK_NTC_STR-NTC_REAS_TXT sy-vline 
WA_IBKK_NTC_STR-XFLGNTC_NOPD sy-vline 
WA_IBKK_NTC_STR-PAORN_TMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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