ABAP Select data from SAP table PMMPURGRPAN3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PMMPURGRPAN3 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 PMMPURGRPAN3. 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 PMMPURGRPAN3 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_PMMPURGRPAN3 TYPE STANDARD TABLE OF PMMPURGRPAN3,
      WA_PMMPURGRPAN3 TYPE PMMPURGRPAN3,
      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: <PMMPURGRPAN3> TYPE PMMPURGRPAN3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PMMPURGRPAN3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PMMPURGRPAN3
  INTO TABLE IT_PMMPURGRPAN3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMPURGRPAN3
*  INTO TABLE @DATA(IT_PMMPURGRPAN32).
*--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_PMMPURGRPAN3 INDEX 1 INTO DATA(WA_PMMPURGRPAN32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PMMPURGRPAN3 ASSIGNING <PMMPURGRPAN3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMPURGRPAN3>-MANDT = 1.
<PMMPURGRPAN3>-PURCHASINGORGANIZATION = 1.
<PMMPURGRPAN3>-PURCHASINGGROUP = 1.
<PMMPURGRPAN3>-SUPPLIER = 1.
<PMMPURGRPAN3>-COMPANYCODE = 1.

ENDLOOP.

LOOP AT IT_PMMPURGRPAN3 INTO WA_PMMPURGRPAN3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMPURGRPAN3-CALENDARYEAR, sy-vline,
  WA_PMMPURGRPAN3-CALENDARMONTH, sy-vline,
  WA_PMMPURGRPAN3-CALENDARQUARTER, sy-vline,
  WA_PMMPURGRPAN3-CALENDARWEEK, sy-vline,
  WA_PMMPURGRPAN3-PURCHASINGDOCUMENTCATEGORY, sy-vline,
  WA_PMMPURGRPAN3-PURCHASINGDOCUMENTSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMPURGRPAN3 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_PMMPURGRPAN3 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_PMMPURGRPAN3 INTO WA_PMMPURGRPAN3.


*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 SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMMPURGRPAN3-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMPURGRPAN3-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMMPURGRPAN3-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMPURGRPAN3-ORDERQUANTITYUNIT.
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_PMMPURGRPAN3_STR, 
MANDT TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARWEEK TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTSTATUS TYPE STRING,
NUMBEROFREQUESTSFORQUOTATION TYPE STRING,
NUMBEROFREQFORQUOTATIONITEMS TYPE STRING,
NUMBEROFPURCHASEORDERS TYPE STRING,
NUMBEROFPURCHASEORDERITEMS TYPE STRING,
NUMBEROFSCHEDULINGAGREEMENTS TYPE STRING,
NUMBEROFSCHEDGAGRMTITEMS TYPE STRING,
NUMBEROFCONTRACTS TYPE STRING,
NUMBEROFCONTRACTITEMS TYPE STRING,
NUMBEROFQUOTATION TYPE STRING,
NUMBEROFQUOTATIONITEMS TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
PURCHASEORDERAMOUNT TYPE STRING,
SCHEDULELINES TYPE STRING,
ROUGHGOODSRECEIPTQTY TYPE STRING,
TOTALINVOICEAMOUNTINDISCRCY TYPE STRING,
NUMBEROFDELIVERIES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMPURGRPAN3_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_PMMPURGRPAN3_STR-MANDT sy-vline 
WA_PMMPURGRPAN3_STR-PURCHASINGORGANIZATION sy-vline 
WA_PMMPURGRPAN3_STR-PURCHASINGGROUP sy-vline 
WA_PMMPURGRPAN3_STR-SUPPLIER sy-vline 
WA_PMMPURGRPAN3_STR-COMPANYCODE sy-vline 
WA_PMMPURGRPAN3_STR-CALENDARYEAR sy-vline 
WA_PMMPURGRPAN3_STR-CALENDARMONTH sy-vline 
WA_PMMPURGRPAN3_STR-CALENDARQUARTER sy-vline 
WA_PMMPURGRPAN3_STR-CALENDARWEEK sy-vline 
WA_PMMPURGRPAN3_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_PMMPURGRPAN3_STR-PURCHASINGDOCUMENTSTATUS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFREQUESTSFORQUOTATION sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFREQFORQUOTATIONITEMS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFPURCHASEORDERS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFPURCHASEORDERITEMS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFSCHEDULINGAGREEMENTS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFSCHEDGAGRMTITEMS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFCONTRACTS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFCONTRACTITEMS sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFQUOTATION sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFQUOTATIONITEMS sy-vline 
WA_PMMPURGRPAN3_STR-ORDERQUANTITYUNIT sy-vline 
WA_PMMPURGRPAN3_STR-DISPLAYCURRENCY sy-vline 
WA_PMMPURGRPAN3_STR-PURCHASEORDERAMOUNT sy-vline 
WA_PMMPURGRPAN3_STR-SCHEDULELINES sy-vline 
WA_PMMPURGRPAN3_STR-ROUGHGOODSRECEIPTQTY sy-vline 
WA_PMMPURGRPAN3_STR-TOTALINVOICEAMOUNTINDISCRCY sy-vline 
WA_PMMPURGRPAN3_STR-NUMBEROFDELIVERIES sy-vline      INTO ld_text SEPARATED BY SPACE.

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