ABAP Select data from SAP table TFM_CASHFLOWCONSTRUCT_GENERAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFM_CASHFLOWCONSTRUCT_GENERAL
*  INTO TABLE @DATA(IT_TFM_CASHFLOWCONSTRUCT_GENERAL2).
*--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_TFM_CASHFLOWCONSTRUCT_GENERAL INDEX 1 INTO DATA(WA_TFM_CASHFLOWCONSTRUCT_GENERAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFM_CASHFLOWCONSTRUCT_GENERAL>-NUMBER_PERIODS = 1.
<TFM_CASHFLOWCONSTRUCT_GENERAL>-UNIT_PERIODS = 1.
<TFM_CASHFLOWCONSTRUCT_GENERAL>-PAYMENT_FORM = 1.
<TFM_CASHFLOWCONSTRUCT_GENERAL>-TERM_START_DATE = 1.
<TFM_CASHFLOWCONSTRUCT_GENERAL>-TERM_END_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFM_CASHFLOWCONSTRUCT_GENERAL-FIRST_DUE_DATE, sy-vline,
  WA_TFM_CASHFLOWCONSTRUCT_GENERAL-AMOUNT_TO_FINANCE, sy-vline,
  WA_TFM_CASHFLOWCONSTRUCT_GENERAL-DOWN_PAYMENT, sy-vline,
  WA_TFM_CASHFLOWCONSTRUCT_GENERAL-RESIDUAL_VALUE, sy-vline,
  WA_TFM_CASHFLOWCONSTRUCT_GENERAL-BALANCE, sy-vline,
  WA_TFM_CASHFLOWCONSTRUCT_GENERAL-INSTALLMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFM_CASHFLOWCONSTRUCT_GENERAL 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_TFM_CASHFLOWCONSTRUCT_GENERAL 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_TFM_CASHFLOWCONSTRUCT_GENERAL INTO WA_TFM_CASHFLOWCONSTRUCT_GENERAL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TFM_CASHFLOWCONSTRUCT_GENERAL_STR, 
NUMBER_PERIODS TYPE STRING,
UNIT_PERIODS TYPE STRING,
PAYMENT_FORM TYPE STRING,
TERM_START_DATE TYPE STRING,
TERM_END_DATE TYPE STRING,
FIRST_DUE_DATE TYPE STRING,
AMOUNT_TO_FINANCE TYPE STRING,
DOWN_PAYMENT TYPE STRING,
RESIDUAL_VALUE TYPE STRING,
BALANCE TYPE STRING,
INSTALLMENT TYPE STRING,
INTEREST_RATE TYPE STRING,
INTERST_CALC_METHOD TYPE STRING,
IRR TYPE STRING,
IRR_METHOD TYPE STRING,
COMPOUND_EXPO TYPE STRING,
AMMRHYZV TYPE STRING,
PERIOD_RETURN TYPE STRING,
CURRKEY TYPE STRING,
CURRKEY_TEXT TYPE STRING,
ALTIRR_CALC_MODE TYPE STRING,
KEYDAY TYPE STRING,
SFWERK TYPE STRING,
SKALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFM_CASHFLOWCONSTRUCT_GENERAL_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_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-NUMBER_PERIODS sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-UNIT_PERIODS sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-PAYMENT_FORM sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-TERM_START_DATE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-TERM_END_DATE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-FIRST_DUE_DATE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-AMOUNT_TO_FINANCE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-DOWN_PAYMENT sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-RESIDUAL_VALUE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-BALANCE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-INSTALLMENT sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-INTEREST_RATE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-INTERST_CALC_METHOD sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-IRR sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-IRR_METHOD sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-COMPOUND_EXPO sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-AMMRHYZV sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-PERIOD_RETURN sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-CURRKEY sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-CURRKEY_TEXT sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-ALTIRR_CALC_MODE sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-KEYDAY sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-SFWERK sy-vline 
WA_TFM_CASHFLOWCONSTRUCT_GENERAL_STR-SKALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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