ABAP Select data from SAP table PCN_TPM_S_AMOUNT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCN_TPM_S_AMOUNT
*  INTO TABLE @DATA(IT_PCN_TPM_S_AMOUNT2).
*--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_PCN_TPM_S_AMOUNT INDEX 1 INTO DATA(WA_PCN_TPM_S_AMOUNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCN_TPM_S_AMOUNT>-MANDT = 1.
<PCN_TPM_S_AMOUNT>-AMNTID = 1.
<PCN_TPM_S_AMOUNT>-ITMID = 1.
<PCN_TPM_S_AMOUNT>-ITMGRPID = 1.
<PCN_TPM_S_AMOUNT>-STRID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCN_TPM_S_AMOUNT-NODID, sy-vline,
  WA_PCN_TPM_S_AMOUNT-LASTUSR, sy-vline,
  WA_PCN_TPM_S_AMOUNT-MODDAT, sy-vline,
  WA_PCN_TPM_S_AMOUNT-MODTIM, sy-vline,
  WA_PCN_TPM_S_AMOUNT-AMNT, sy-vline,
  WA_PCN_TPM_S_AMOUNT-GRP_AMNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCN_TPM_S_AMOUNT 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_PCN_TPM_S_AMOUNT 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_PCN_TPM_S_AMOUNT INTO WA_PCN_TPM_S_AMOUNT.


*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_PCN_TPM_S_AMOUNT_STR, 
MANDT TYPE STRING,
AMNTID TYPE STRING,
ITMID TYPE STRING,
ITMGRPID TYPE STRING,
STRID TYPE STRING,
NODID TYPE STRING,
LASTUSR TYPE STRING,
MODDAT TYPE STRING,
MODTIM TYPE STRING,
AMNT TYPE STRING,
GRP_AMNT TYPE STRING,
GRP_RVAMNT TYPE STRING,
OPERATION TYPE STRING,
ROOT_FLG TYPE STRING,
LEAF_FLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCN_TPM_S_AMOUNT_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_PCN_TPM_S_AMOUNT_STR-MANDT sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-AMNTID sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-ITMID sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-ITMGRPID sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-STRID sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-NODID sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-LASTUSR sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-MODDAT sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-MODTIM sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-AMNT sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-GRP_AMNT sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-GRP_RVAMNT sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-OPERATION sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-ROOT_FLG sy-vline 
WA_PCN_TPM_S_AMOUNT_STR-LEAF_FLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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