ABAP Select data from SAP table IBKKPO_SNX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKKPO_SNX
*  INTO TABLE @DATA(IT_IBKKPO_SNX2).
*--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_IBKKPO_SNX INDEX 1 INTO DATA(WA_IBKKPO_SNX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKKPO_SNX>-DATE_POST = 1.
<IBKKPO_SNX>-DATE_CR = 1.
<IBKKPO_SNX>-DATE_VALUE = 1.
<IBKKPO_SNX>-MEDIUM = 1.
<IBKKPO_SNX>-TRNSTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKKPO_SNX-BANKS, sy-vline,
  WA_IBKKPO_SNX-BANKL, sy-vline,
  WA_IBKKPO_SNX-ACEXT, sy-vline,
  WA_IBKKPO_SNX-ACIBAN, sy-vline,
  WA_IBKKPO_SNX-NAME, sy-vline,
  WA_IBKKPO_SNX-REFNO_CR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKKPO_SNX 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_IBKKPO_SNX 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_IBKKPO_SNX INTO WA_IBKKPO_SNX.


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

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

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

*Conversion exit ALPHA, internal->external for field CHEQUE_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKKPO_SNX-CHEQUE_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKKPO_SNX-CHEQUE_NO.
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_IBKKPO_SNX_STR, 
DATE_POST TYPE STRING,
DATE_CR TYPE STRING,
DATE_VALUE TYPE STRING,
MEDIUM TYPE STRING,
TRNSTYPE TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
ACEXT TYPE STRING,
ACIBAN TYPE STRING,
NAME TYPE STRING,
REFNO_CR TYPE STRING,
REFNO_PAYM TYPE STRING,
REFNO_PN TYPE STRING,
PRENOTE_REF_NO TYPE STRING,
CHEQUE_NO TYPE STRING,
TCUR TYPE STRING,
NACUR TYPE STRING,
ACUR TYPE STRING,
T_AMOUNT TYPE STRING,
NA_AMOUNT TYPE STRING,
A_AMOUNT TYPE STRING,
T_CHARGE TYPE STRING,
NA_CHARGE TYPE STRING,
A_CHARGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKKPO_SNX_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_IBKKPO_SNX_STR-DATE_POST sy-vline 
WA_IBKKPO_SNX_STR-DATE_CR sy-vline 
WA_IBKKPO_SNX_STR-DATE_VALUE sy-vline 
WA_IBKKPO_SNX_STR-MEDIUM sy-vline 
WA_IBKKPO_SNX_STR-TRNSTYPE sy-vline 
WA_IBKKPO_SNX_STR-BANKS sy-vline 
WA_IBKKPO_SNX_STR-BANKL sy-vline 
WA_IBKKPO_SNX_STR-ACEXT sy-vline 
WA_IBKKPO_SNX_STR-ACIBAN sy-vline 
WA_IBKKPO_SNX_STR-NAME sy-vline 
WA_IBKKPO_SNX_STR-REFNO_CR sy-vline 
WA_IBKKPO_SNX_STR-REFNO_PAYM sy-vline 
WA_IBKKPO_SNX_STR-REFNO_PN sy-vline 
WA_IBKKPO_SNX_STR-PRENOTE_REF_NO sy-vline 
WA_IBKKPO_SNX_STR-CHEQUE_NO sy-vline 
WA_IBKKPO_SNX_STR-TCUR sy-vline 
WA_IBKKPO_SNX_STR-NACUR sy-vline 
WA_IBKKPO_SNX_STR-ACUR sy-vline 
WA_IBKKPO_SNX_STR-T_AMOUNT sy-vline 
WA_IBKKPO_SNX_STR-NA_AMOUNT sy-vline 
WA_IBKKPO_SNX_STR-A_AMOUNT sy-vline 
WA_IBKKPO_SNX_STR-T_CHARGE sy-vline 
WA_IBKKPO_SNX_STR-NA_CHARGE sy-vline 
WA_IBKKPO_SNX_STR-A_CHARGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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