ABAP Select data from SAP table CIAP_ACC_SIMULATED_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CIAP_ACC_SIMULATED_ITEM
*  INTO TABLE @DATA(IT_CIAP_ACC_SIMULATED_ITEM2).
*--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_CIAP_ACC_SIMULATED_ITEM INDEX 1 INTO DATA(WA_CIAP_ACC_SIMULATED_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CIAP_ACC_SIMULATED_ITEM>-POSNR = 1.
<CIAP_ACC_SIMULATED_ITEM>-BUKRS = 1.
<CIAP_ACC_SIMULATED_ITEM>-BUPLA = 1.
<CIAP_ACC_SIMULATED_ITEM>-WERKS = 1.
<CIAP_ACC_SIMULATED_ITEM>-KOSTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CIAP_ACC_SIMULATED_ITEM-BUDAT, sy-vline,
  WA_CIAP_ACC_SIMULATED_ITEM-PS_PSP_PNR, sy-vline,
  WA_CIAP_ACC_SIMULATED_ITEM-AUFNR, sy-vline,
  WA_CIAP_ACC_SIMULATED_ITEM-NPLNR, sy-vline,
  WA_CIAP_ACC_SIMULATED_ITEM-MWSKZ, sy-vline,
  WA_CIAP_ACC_SIMULATED_ITEM-SGTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CIAP_ACC_SIMULATED_ITEM 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_CIAP_ACC_SIMULATED_ITEM 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_CIAP_ACC_SIMULATED_ITEM INTO WA_CIAP_ACC_SIMULATED_ITEM.


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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CIAP_ACC_SIMULATED_ITEM-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIAP_ACC_SIMULATED_ITEM-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CIAP_ACC_SIMULATED_ITEM-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIAP_ACC_SIMULATED_ITEM-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CIAP_ACC_SIMULATED_ITEM-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIAP_ACC_SIMULATED_ITEM-ANLN2.
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_CIAP_ACC_SIMULATED_ITEM_STR, 
POSNR TYPE STRING,
BUKRS TYPE STRING,
BUPLA TYPE STRING,
WERKS TYPE STRING,
KOSTL TYPE STRING,
BUDAT TYPE STRING,
PS_PSP_PNR TYPE STRING,
AUFNR TYPE STRING,
NPLNR TYPE STRING,
MWSKZ TYPE STRING,
SGTXT TYPE STRING,
TXJCD TYPE STRING,
PRCTR TYPE STRING,
GSBER TYPE STRING,
HKONT TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
SHKZG TYPE STRING,
BSCHL TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
KOART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CIAP_ACC_SIMULATED_ITEM_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_CIAP_ACC_SIMULATED_ITEM_STR-POSNR sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-BUKRS sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-BUPLA sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-WERKS sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-KOSTL sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-BUDAT sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-PS_PSP_PNR sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-AUFNR sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-NPLNR sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-MWSKZ sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-SGTXT sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-TXJCD sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-PRCTR sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-GSBER sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-HKONT sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-WRBTR sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-WAERS sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-SHKZG sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-BSCHL sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-ANLN1 sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-ANLN2 sy-vline 
WA_CIAP_ACC_SIMULATED_ITEM_STR-KOART sy-vline      INTO ld_text SEPARATED BY SPACE.

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