ABAP Select data from SAP table PPURGORDENCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPURGORDENCD
*  INTO TABLE @DATA(IT_PPURGORDENCD2).
*--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_PPURGORDENCD INDEX 1 INTO DATA(WA_PPURGORDENCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPURGORDENCD>-MANDT = 1.
<PPURGORDENCD>-PURCHASEORDER = 1.
<PPURGORDENCD>-PURCHASEORDERITEM = 1.
<PPURGORDENCD>-SCHEDULELINE = 1.
<PPURGORDENCD>-PURCHASEORDERCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPURGORDENCD-PURCHASEORDERITEMCATEGORY, sy-vline,
  WA_PPURGORDENCD-PURCHASEREQUISITION, sy-vline,
  WA_PPURGORDENCD-PURCHASEREQUISITIONITEM, sy-vline,
  WA_PPURGORDENCD-PURCHASEORDERTYPE, sy-vline,
  WA_PPURGORDENCD-PURCHASEORDERDATE, sy-vline,
  WA_PPURGORDENCD-SUPPLIER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPURGORDENCD 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_PPURGORDENCD 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_PPURGORDENCD INTO WA_PPURGORDENCD.


*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_PPURGORDENCD-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPURGORDENCD-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPURGORDENCD-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPURGORDENCD-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field PURCHASEORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPURGORDENCD-PURCHASEORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPURGORDENCD-PURCHASEORDERQUANTITYUNIT.
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_PPURGORDENCD_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
PURCHASEORDERCATEGORY TYPE STRING,
PURCHASEORDERITEMCATEGORY TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
PURCHASEORDERDATE TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
PRODUCTTYPE TYPE STRING,
SERVICEPERFORMER TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
SCHEDLINESTSCDELIVERYDATE TYPE STRING,
PERFORMANCEPERIODSTARTDATE TYPE STRING,
PERFORMANCEPERIODENDDATE TYPE STRING,
SCHEDULELINEDELIVERYTIME TYPE STRING,
SCHEDULELINEORDERQUANTITY TYPE STRING,
ROUGHGOODSRECEIPTQTY TYPE STRING,
CREATEDBYUSER TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
MULTIPLEACCTASSGMTDISTRIBUTION TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
ORDERPRICEUNITTOORDERUNITNMRTR TYPE STRING,
ORDPRICEUNITTOORDERUNITDNMNTR TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
ANALYTICALREPORTINGCURRENCY TYPE STRING,
ANALYTICALREPORTINGCURRENCY2 TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
NETPRICEINREPORTINGCURRENCY TYPE STRING,
NETPRICEINREPORTINGCURRENCY2 TYPE STRING,
NETAMOUNTINREPORTINGCURRENCY TYPE STRING,
NETAMOUNTINREPORTINGCURRENCY2 TYPE STRING,
NETAMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPURGORDENCD_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_PPURGORDENCD_STR-MANDT sy-vline 
WA_PPURGORDENCD_STR-PURCHASEORDER sy-vline 
WA_PPURGORDENCD_STR-PURCHASEORDERITEM sy-vline 
WA_PPURGORDENCD_STR-SCHEDULELINE sy-vline 
WA_PPURGORDENCD_STR-PURCHASEORDERCATEGORY sy-vline 
WA_PPURGORDENCD_STR-PURCHASEORDERITEMCATEGORY sy-vline 
WA_PPURGORDENCD_STR-PURCHASEREQUISITION sy-vline 
WA_PPURGORDENCD_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_PPURGORDENCD_STR-PURCHASEORDERTYPE sy-vline 
WA_PPURGORDENCD_STR-PURCHASEORDERDATE sy-vline 
WA_PPURGORDENCD_STR-SUPPLIER sy-vline 
WA_PPURGORDENCD_STR-COMPANYCODE sy-vline 
WA_PPURGORDENCD_STR-PURCHASINGGROUP sy-vline 
WA_PPURGORDENCD_STR-PURCHASINGORGANIZATION sy-vline 
WA_PPURGORDENCD_STR-MATERIALGROUP sy-vline 
WA_PPURGORDENCD_STR-MATERIAL sy-vline 
WA_PPURGORDENCD_STR-PLANT sy-vline 
WA_PPURGORDENCD_STR-PRODUCTTYPE sy-vline 
WA_PPURGORDENCD_STR-SERVICEPERFORMER sy-vline 
WA_PPURGORDENCD_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_PPURGORDENCD_STR-SCHEDLINESTSCDELIVERYDATE sy-vline 
WA_PPURGORDENCD_STR-PERFORMANCEPERIODSTARTDATE sy-vline 
WA_PPURGORDENCD_STR-PERFORMANCEPERIODENDDATE sy-vline 
WA_PPURGORDENCD_STR-SCHEDULELINEDELIVERYTIME sy-vline 
WA_PPURGORDENCD_STR-SCHEDULELINEORDERQUANTITY sy-vline 
WA_PPURGORDENCD_STR-ROUGHGOODSRECEIPTQTY sy-vline 
WA_PPURGORDENCD_STR-CREATEDBYUSER sy-vline 
WA_PPURGORDENCD_STR-PURCHASECONTRACT sy-vline 
WA_PPURGORDENCD_STR-PURCHASECONTRACTITEM sy-vline 
WA_PPURGORDENCD_STR-MULTIPLEACCTASSGMTDISTRIBUTION sy-vline 
WA_PPURGORDENCD_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_PPURGORDENCD_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_PPURGORDENCD_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_PPURGORDENCD_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_PPURGORDENCD_STR-ANALYTICALREPORTINGCURRENCY sy-vline 
WA_PPURGORDENCD_STR-ANALYTICALREPORTINGCURRENCY2 sy-vline 
WA_PPURGORDENCD_STR-NETPRICEQUANTITY sy-vline 
WA_PPURGORDENCD_STR-DOCUMENTCURRENCY sy-vline 
WA_PPURGORDENCD_STR-NETPRICEAMOUNT sy-vline 
WA_PPURGORDENCD_STR-NETPRICEINREPORTINGCURRENCY sy-vline 
WA_PPURGORDENCD_STR-NETPRICEINREPORTINGCURRENCY2 sy-vline 
WA_PPURGORDENCD_STR-NETAMOUNTINREPORTINGCURRENCY sy-vline 
WA_PPURGORDENCD_STR-NETAMOUNTINREPORTINGCURRENCY2 sy-vline 
WA_PPURGORDENCD_STR-NETAMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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