ABAP Select data from SAP table PCOLLSUMAMTINPER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCOLLSUMAMTINPER
*  INTO TABLE @DATA(IT_PCOLLSUMAMTINPER2).
*--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_PCOLLSUMAMTINPER INDEX 1 INTO DATA(WA_PCOLLSUMAMTINPER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCOLLSUMAMTINPER>-MANDT = 1.
<PCOLLSUMAMTINPER>-BUSINESSPARTNER = 1.
<PCOLLSUMAMTINPER>-COLLECTIONSEGMENT = 1.
<PCOLLSUMAMTINPER>-COLLSTRGYCURRENCY = 1.
<PCOLLSUMAMTINPER>-AMOUNTOVERDUE4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCOLLSUMAMTINPER-AMOUNTOVERDUE3, sy-vline,
  WA_PCOLLSUMAMTINPER-AMOUNTOVERDUE2, sy-vline,
  WA_PCOLLSUMAMTINPER-AMOUNTOVERDUE1, sy-vline,
  WA_PCOLLSUMAMTINPER-AMOUNTDUE1, sy-vline,
  WA_PCOLLSUMAMTINPER-AMOUNTDUE2, sy-vline,
  WA_PCOLLSUMAMTINPER-AMOUNTDUE3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCOLLSUMAMTINPER 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_PCOLLSUMAMTINPER 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_PCOLLSUMAMTINPER INTO WA_PCOLLSUMAMTINPER.


*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 BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCOLLSUMAMTINPER-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOLLSUMAMTINPER-BUSINESSPARTNER.
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_PCOLLSUMAMTINPER_STR, 
MANDT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
COLLECTIONSEGMENT TYPE STRING,
COLLSTRGYCURRENCY TYPE STRING,
AMOUNTOVERDUE4 TYPE STRING,
AMOUNTOVERDUE3 TYPE STRING,
AMOUNTOVERDUE2 TYPE STRING,
AMOUNTOVERDUE1 TYPE STRING,
AMOUNTDUE1 TYPE STRING,
AMOUNTDUE2 TYPE STRING,
AMOUNTDUE3 TYPE STRING,
AMOUNTDUE4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCOLLSUMAMTINPER_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_PCOLLSUMAMTINPER_STR-MANDT sy-vline 
WA_PCOLLSUMAMTINPER_STR-BUSINESSPARTNER sy-vline 
WA_PCOLLSUMAMTINPER_STR-COLLECTIONSEGMENT sy-vline 
WA_PCOLLSUMAMTINPER_STR-COLLSTRGYCURRENCY sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTOVERDUE4 sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTOVERDUE3 sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTOVERDUE2 sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTOVERDUE1 sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTDUE1 sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTDUE2 sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTDUE3 sy-vline 
WA_PCOLLSUMAMTINPER_STR-AMOUNTDUE4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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