ABAP Select data from SAP table IWATERFALL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWATERFALL
*  INTO TABLE @DATA(IT_IWATERFALL2).
*--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_IWATERFALL INDEX 1 INTO DATA(WA_IWATERFALL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IWATERFALL>-MANDT = 1.
<IWATERFALL>-LEDGER = 1.
<IWATERFALL>-COMPANYCODE = 1.
<IWATERFALL>-FINANCIALACCOUNTTYPE = 1.
<IWATERFALL>-CONTROLLINGAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWATERFALL-PROFITCENTER, sy-vline,
  WA_IWATERFALL-COMPANYCODENAME, sy-vline,
  WA_IWATERFALL-GLACCOUNTHIERARCHY, sy-vline,
  WA_IWATERFALL-LEADINGLEDGER, sy-vline,
  WA_IWATERFALL-MATERIAL, sy-vline,
  WA_IWATERFALL-MATERIALNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWATERFALL 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_IWATERFALL 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_IWATERFALL INTO WA_IWATERFALL.


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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IWATERFALL-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWATERFALL-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IWATERFALL-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWATERFALL-CUSTOMER.
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_IWATERFALL_STR, 
MANDT TYPE STRING,
LEDGER TYPE STRING,
COMPANYCODE TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PROFITCENTER TYPE STRING,
COMPANYCODENAME TYPE STRING,
GLACCOUNTHIERARCHY TYPE STRING,
LEADINGLEDGER TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERNAME TYPE STRING,
INDUSTRY TYPE STRING,
SUPPLIERINDUSTRYNAME TYPE STRING,
CUSTOMERBASICAUTHORIZATIONGRP TYPE STRING,
CUSTOMERFINSAUTHORIZATIONGRP TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
GLOBALCURRENCY TYPE STRING,
BILLEDREVENUEAMTINCOCODECRCY TYPE STRING,
SALESDEDUCTIONAMTINCOCODECRCY TYPE STRING,
REVENUEADJUSTAMTINCOCODECRCY TYPE STRING,
COGSAMOUNTINCOCODECRCY TYPE STRING,
VARIANCESAMOUNTINCOCODECRCY TYPE STRING,
SCRAPAMOUNTINCOCODECRCY TYPE STRING,
ADMINOVERHEADAMTINCOCODECRCY TYPE STRING,
SALESOVERHEADAMTINCOCODECRCY TYPE STRING,
MARKETINGOVHDAMTINCOCODECRCY TYPE STRING,
RESEARCHDEVOVHDAMTINCOCODECRCY TYPE STRING,
CONTRBNMARGIN1AMTINCOCODECRCY TYPE STRING,
CONTRBNMARGIN2AMTINCOCODECRCY TYPE STRING,
CONTRBNMARGIN3AMTINCOCODECRCY TYPE STRING,
BILLEDREVENUEASSALESPCT TYPE STRING,
SALESDEDUCTIONASSALESPCT TYPE STRING,
REVENUEADJUSTASSALESPCT TYPE STRING,
COGSASSALESPCT TYPE STRING,
VARIANCESASSALESPCT TYPE STRING,
SCRAPASSALESPCT TYPE STRING,
OVERHEADADMINASSALESPCT TYPE STRING,
OVERHEADSALESASSALESPCT TYPE STRING,
OVERHEADMARKETINGASSALESPCT TYPE STRING,
OVERHEADRESEARCHASSALESPCT TYPE STRING,
CONTRIBUTIONMARGIN1ASSALESPCT TYPE STRING,
CONTRIBUTIONMARGIN2ASSALESPCT TYPE STRING,
CONTRIBUTIONMARGIN3ASSALESPCT TYPE STRING,
BILLEDREVENUEAMTINGLOBCRCY TYPE STRING,
SALESDEDUCTIONAMOUNTINGLOBCRCY TYPE STRING,
REVENUEADJUSTAMTINGLOBCRCY TYPE STRING,
COGSAMOUNTINGLOBCRCY TYPE STRING,
VARIANCESAMOUNTINGLOBCRCY TYPE STRING,
SCRAPAMOUNTINGLOBCRCY TYPE STRING,
ADMINOVERHEADAMTINGLOBCRCY TYPE STRING,
SALESOVERHEADAMTINGLOBCRCY TYPE STRING,
MARKETINGOVERHEADAMTINGLOBCRCY TYPE STRING,
RESEARCHDEVOVHDAMTINGLOBCRCY TYPE STRING,
CONTRBNMARGIN1AMTINGLOBCRCY TYPE STRING,
CONTRBNMARGIN2AMTINGLOBCRCY TYPE STRING,
CONTRBNMARGIN3AMTINGLOBCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWATERFALL_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_IWATERFALL_STR-MANDT sy-vline 
WA_IWATERFALL_STR-LEDGER sy-vline 
WA_IWATERFALL_STR-COMPANYCODE sy-vline 
WA_IWATERFALL_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_IWATERFALL_STR-CONTROLLINGAREA sy-vline 
WA_IWATERFALL_STR-PROFITCENTER sy-vline 
WA_IWATERFALL_STR-COMPANYCODENAME sy-vline 
WA_IWATERFALL_STR-GLACCOUNTHIERARCHY sy-vline 
WA_IWATERFALL_STR-LEADINGLEDGER sy-vline 
WA_IWATERFALL_STR-MATERIAL sy-vline 
WA_IWATERFALL_STR-MATERIALNAME sy-vline 
WA_IWATERFALL_STR-CUSTOMER sy-vline 
WA_IWATERFALL_STR-CUSTOMERNAME sy-vline 
WA_IWATERFALL_STR-INDUSTRY sy-vline 
WA_IWATERFALL_STR-SUPPLIERINDUSTRYNAME sy-vline 
WA_IWATERFALL_STR-CUSTOMERBASICAUTHORIZATIONGRP sy-vline 
WA_IWATERFALL_STR-CUSTOMERFINSAUTHORIZATIONGRP sy-vline 
WA_IWATERFALL_STR-COMPANYCODECURRENCY sy-vline 
WA_IWATERFALL_STR-GLOBALCURRENCY sy-vline 
WA_IWATERFALL_STR-BILLEDREVENUEAMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-SALESDEDUCTIONAMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-REVENUEADJUSTAMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-COGSAMOUNTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-VARIANCESAMOUNTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-SCRAPAMOUNTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-ADMINOVERHEADAMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-SALESOVERHEADAMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-MARKETINGOVHDAMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-RESEARCHDEVOVHDAMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-CONTRBNMARGIN1AMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-CONTRBNMARGIN2AMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-CONTRBNMARGIN3AMTINCOCODECRCY sy-vline 
WA_IWATERFALL_STR-BILLEDREVENUEASSALESPCT sy-vline 
WA_IWATERFALL_STR-SALESDEDUCTIONASSALESPCT sy-vline 
WA_IWATERFALL_STR-REVENUEADJUSTASSALESPCT sy-vline 
WA_IWATERFALL_STR-COGSASSALESPCT sy-vline 
WA_IWATERFALL_STR-VARIANCESASSALESPCT sy-vline 
WA_IWATERFALL_STR-SCRAPASSALESPCT sy-vline 
WA_IWATERFALL_STR-OVERHEADADMINASSALESPCT sy-vline 
WA_IWATERFALL_STR-OVERHEADSALESASSALESPCT sy-vline 
WA_IWATERFALL_STR-OVERHEADMARKETINGASSALESPCT sy-vline 
WA_IWATERFALL_STR-OVERHEADRESEARCHASSALESPCT sy-vline 
WA_IWATERFALL_STR-CONTRIBUTIONMARGIN1ASSALESPCT sy-vline 
WA_IWATERFALL_STR-CONTRIBUTIONMARGIN2ASSALESPCT sy-vline 
WA_IWATERFALL_STR-CONTRIBUTIONMARGIN3ASSALESPCT sy-vline 
WA_IWATERFALL_STR-BILLEDREVENUEAMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-SALESDEDUCTIONAMOUNTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-REVENUEADJUSTAMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-COGSAMOUNTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-VARIANCESAMOUNTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-SCRAPAMOUNTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-ADMINOVERHEADAMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-SALESOVERHEADAMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-MARKETINGOVERHEADAMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-RESEARCHDEVOVHDAMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-CONTRBNMARGIN1AMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-CONTRBNMARGIN2AMTINGLOBCRCY sy-vline 
WA_IWATERFALL_STR-CONTRBNMARGIN3AMTINGLOBCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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