ABAP Select data from SAP table ISX_CONTRACT_ITEM_BILLPL_I into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISX_CONTRACT_ITEM_BILLPL_I
*  INTO TABLE @DATA(IT_ISX_CONTRACT_ITEM_BILLPL_I2).
*--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_ISX_CONTRACT_ITEM_BILLPL_I INDEX 1 INTO DATA(WA_ISX_CONTRACT_ITEM_BILLPL_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISX_CONTRACT_ITEM_BILLPL_I>-BILLINGPLANITEM = 1.
<ISX_CONTRACT_ITEM_BILLPL_I>-CONTRACT_ID = 1.
<ISX_CONTRACT_ITEM_BILLPL_I>-CONTRACT_ITEM_ID = 1.
<ISX_CONTRACT_ITEM_BILLPL_I>-BILLPLAN_REF = 1.
<ISX_CONTRACT_ITEM_BILLPL_I>-LOG_SYSTEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISX_CONTRACT_ITEM_BILLPL_I-BILLPLANITEM_REF, sy-vline,
  WA_ISX_CONTRACT_ITEM_BILLPL_I-BILLPLANITEM_TYPE, sy-vline,
  WA_ISX_CONTRACT_ITEM_BILLPL_I-BILLPLANITEM_TEXT, sy-vline,
  WA_ISX_CONTRACT_ITEM_BILLPL_I-AMOUNT, sy-vline,
  WA_ISX_CONTRACT_ITEM_BILLPL_I-CURRENCY, sy-vline,
  WA_ISX_CONTRACT_ITEM_BILLPL_I-TAX_INCLUDED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISX_CONTRACT_ITEM_BILLPL_I 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_ISX_CONTRACT_ITEM_BILLPL_I 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_ISX_CONTRACT_ITEM_BILLPL_I INTO WA_ISX_CONTRACT_ITEM_BILLPL_I.


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

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISX_CONTRACT_ITEM_BILLPL_I-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISX_CONTRACT_ITEM_BILLPL_I-QUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISX_CONTRACT_ITEM_BILLPL_I-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISX_CONTRACT_ITEM_BILLPL_I-SEGMENT.
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_ISX_CONTRACT_ITEM_BILLPL_I_STR, 
BILLINGPLANITEM TYPE STRING,
CONTRACT_ID TYPE STRING,
CONTRACT_ITEM_ID TYPE STRING,
BILLPLAN_REF TYPE STRING,
LOG_SYSTEM TYPE STRING,
BILLPLANITEM_REF TYPE STRING,
BILLPLANITEM_TYPE TYPE STRING,
BILLPLANITEM_TEXT TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
TAX_INCLUDED TYPE STRING,
QUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
TAX_DETERMINATION_CODE TYPE STRING,
TAX_CODE TYPE STRING,
VALIDFROM TYPE STRING,
DIVISION TYPE STRING,
COMP_CODE TYPE STRING,
BUS_AREA TYPE STRING,
SEGMENT TYPE STRING,
MAIN_TRANS TYPE STRING,
SUB_TRANS TYPE STRING,
ACTDETERID TYPE STRING,
OFFSET_ACTION TYPE STRING,
OFFSET_CATEGORY TYPE STRING,
OFFSET_PROCEDURE TYPE STRING,
OFFSET_REFID TYPE STRING,
COND_TYPE TYPE STRING,
SERVICE_TYPE TYPE STRING,
AMOUNT_DET_TYPE TYPE STRING,
AMOUNT_DATE_TYPE TYPE STRING,
PRICE_DATE_TYPE TYPE STRING,
CYCLE TYPE STRING,
TERM_FROM TYPE STRING,
TERM_TO TYPE STRING,
MATNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
DITTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISX_CONTRACT_ITEM_BILLPL_I_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_ISX_CONTRACT_ITEM_BILLPL_I_STR-BILLINGPLANITEM sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-CONTRACT_ID sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-CONTRACT_ITEM_ID sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-BILLPLAN_REF sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-LOG_SYSTEM sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-BILLPLANITEM_REF sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-BILLPLANITEM_TYPE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-BILLPLANITEM_TEXT sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-AMOUNT sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-CURRENCY sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-TAX_INCLUDED sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-QUANTITY sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-QUANTITYUNIT sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-TAX_DETERMINATION_CODE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-TAX_CODE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-VALIDFROM sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-DIVISION sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-COMP_CODE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-BUS_AREA sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-SEGMENT sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-MAIN_TRANS sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-SUB_TRANS sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-ACTDETERID sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-OFFSET_ACTION sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-OFFSET_CATEGORY sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-OFFSET_PROCEDURE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-OFFSET_REFID sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-COND_TYPE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-SERVICE_TYPE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-AMOUNT_DET_TYPE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-AMOUNT_DATE_TYPE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-PRICE_DATE_TYPE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-CYCLE sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-TERM_FROM sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-TERM_TO sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-MATNR sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-VKORG sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-VTWEG sy-vline 
WA_ISX_CONTRACT_ITEM_BILLPL_I_STR-DITTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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