ABAP Select data from SAP table PPOMAINTPDWACALN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPOMAINTPDWACALN
*  INTO TABLE @DATA(IT_PPOMAINTPDWACALN2).
*--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_PPOMAINTPDWACALN INDEX 1 INTO DATA(WA_PPOMAINTPDWACALN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPOMAINTPDWACALN>-MANDT = 1.
<PPOMAINTPDWACALN>-PURCHASINGDOCUMENT = 1.
<PPOMAINTPDWACALN>-PURCHASINGDOCUMENTITEM = 1.
<PPOMAINTPDWACALN>-ACCOUNTASSIGNMENTCATEGORY = 1.
<PPOMAINTPDWACALN>-ACCOUNTASSIGNMENTNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPOMAINTPDWACALN-COSTCENTER, sy-vline,
  WA_PPOMAINTPDWACALN-GLACCOUNT, sy-vline,
  WA_PPOMAINTPDWACALN-CONTROLLINGAREA, sy-vline,
  WA_PPOMAINTPDWACALN-WBSELEMENTINTERNALID, sy-vline,
  WA_PPOMAINTPDWACALN-FUNCTIONALAREA, sy-vline,
  WA_PPOMAINTPDWACALN-SALESORDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPOMAINTPDWACALN 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_PPOMAINTPDWACALN 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_PPOMAINTPDWACALN INTO WA_PPOMAINTPDWACALN.


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

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

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PPOMAINTPDWACALN-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOMAINTPDWACALN-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPOMAINTPDWACALN-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOMAINTPDWACALN-PROFITCENTER.
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_PPOMAINTPDWACALN_STR, 
MANDT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
ACCOUNTASSIGNMENTNUMBER TYPE STRING,
COSTCENTER TYPE STRING,
GLACCOUNT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
FUNCTIONALAREA TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
PROFITCENTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPOMAINTPDWACALN_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_PPOMAINTPDWACALN_STR-MANDT sy-vline 
WA_PPOMAINTPDWACALN_STR-PURCHASINGDOCUMENT sy-vline 
WA_PPOMAINTPDWACALN_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_PPOMAINTPDWACALN_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_PPOMAINTPDWACALN_STR-ACCOUNTASSIGNMENTNUMBER sy-vline 
WA_PPOMAINTPDWACALN_STR-COSTCENTER sy-vline 
WA_PPOMAINTPDWACALN_STR-GLACCOUNT sy-vline 
WA_PPOMAINTPDWACALN_STR-CONTROLLINGAREA sy-vline 
WA_PPOMAINTPDWACALN_STR-WBSELEMENTINTERNALID sy-vline 
WA_PPOMAINTPDWACALN_STR-FUNCTIONALAREA sy-vline 
WA_PPOMAINTPDWACALN_STR-SALESORDER sy-vline 
WA_PPOMAINTPDWACALN_STR-SALESORDERITEM sy-vline 
WA_PPOMAINTPDWACALN_STR-PROFITCENTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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