ABAP Select data from SAP table PMMPOGRDETAILS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMPOGRDETAILS
*  INTO TABLE @DATA(IT_PMMPOGRDETAILS2).
*--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_PMMPOGRDETAILS INDEX 1 INTO DATA(WA_PMMPOGRDETAILS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMPOGRDETAILS>-MANDT = 1.
<PMMPOGRDETAILS>-PURCHASEORDER = 1.
<PMMPOGRDETAILS>-PURCHASEORDERITEM = 1.
<PMMPOGRDETAILS>-MATERIALDOCUMENT = 1.
<PMMPOGRDETAILS>-MATERIALDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMPOGRDETAILS-PURCHASINGDOCUMENTCATEGORY, sy-vline,
  WA_PMMPOGRDETAILS-ISRETURNSITEM, sy-vline,
  WA_PMMPOGRDETAILS-POSTINGDATE, sy-vline,
  WA_PMMPOGRDETAILS-REFERANCEDOCUMENT, sy-vline,
  WA_PMMPOGRDETAILS-REFERENCEDOCUMENTITEM, sy-vline,
  WA_PMMPOGRDETAILS-ISREVERSALMOVEMENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMPOGRDETAILS 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_PMMPOGRDETAILS 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_PMMPOGRDETAILS INTO WA_PMMPOGRDETAILS.


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

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

*Conversion exit ALPHA, internal->external for field REFERANCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMMPOGRDETAILS-REFERANCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMPOGRDETAILS-REFERANCEDOCUMENT.
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_PMMPOGRDETAILS_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
ISRETURNSITEM TYPE STRING,
POSTINGDATE TYPE STRING,
REFERANCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
ISREVERSALMOVEMENTTYPE TYPE STRING,
QUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMPOGRDETAILS_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_PMMPOGRDETAILS_STR-MANDT sy-vline 
WA_PMMPOGRDETAILS_STR-PURCHASEORDER sy-vline 
WA_PMMPOGRDETAILS_STR-PURCHASEORDERITEM sy-vline 
WA_PMMPOGRDETAILS_STR-MATERIALDOCUMENT sy-vline 
WA_PMMPOGRDETAILS_STR-MATERIALDOCUMENTITEM sy-vline 
WA_PMMPOGRDETAILS_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_PMMPOGRDETAILS_STR-ISRETURNSITEM sy-vline 
WA_PMMPOGRDETAILS_STR-POSTINGDATE sy-vline 
WA_PMMPOGRDETAILS_STR-REFERANCEDOCUMENT sy-vline 
WA_PMMPOGRDETAILS_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_PMMPOGRDETAILS_STR-ISREVERSALMOVEMENTTYPE sy-vline 
WA_PMMPOGRDETAILS_STR-QUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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