ABAP Select data from SAP table PCNTRLPURGSPND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCNTRLPURGSPND
*  INTO TABLE @DATA(IT_PCNTRLPURGSPND2).
*--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_PCNTRLPURGSPND INDEX 1 INTO DATA(WA_PCNTRLPURGSPND2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCNTRLPURGSPND-SUPPLIER, sy-vline,
  WA_PCNTRLPURGSPND-PURCHASINGORGANIZATION, sy-vline,
  WA_PCNTRLPURGSPND-PURCHASINGGROUP, sy-vline,
  WA_PCNTRLPURGSPND-COMPANYCODE, sy-vline,
  WA_PCNTRLPURGSPND-MATERIAL, sy-vline,
  WA_PCNTRLPURGSPND-MATERIALGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCNTRLPURGSPND 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_PCNTRLPURGSPND 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_PCNTRLPURGSPND INTO WA_PCNTRLPURGSPND.


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

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

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCNTRLPURGSPND-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCNTRLPURGSPND-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_PCNTRLPURGSPND_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
COMPANYCODE TYPE STRING,
MATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
PLANT TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
SCHEDLINESTSCDELIVERYDATE TYPE STRING,
PURCHASEORDERDATE TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
ISRETURNSITEM TYPE STRING,
NETPRICEINREPORTINGCURRENCY TYPE STRING,
NETPRICEINREPORTINGCURRENCY2 TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
ANALYTICALREPORTINGCURRENCY TYPE STRING,
ANALYTICALREPORTINGCURRENCY2 TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
SCHEDULELINEORDERQUANTITY TYPE STRING,
ORDERPRICEUNITTOORDERUNITNMRTR TYPE STRING,
ORDPRICEUNITTOORDERUNITDNMNTR TYPE STRING,
NETPRICEQUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCNTRLPURGSPND_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_PCNTRLPURGSPND_STR-MANDT sy-vline 
WA_PCNTRLPURGSPND_STR-PURCHASEORDER sy-vline 
WA_PCNTRLPURGSPND_STR-PURCHASEORDERITEM sy-vline 
WA_PCNTRLPURGSPND_STR-SCHEDULELINE sy-vline 
WA_PCNTRLPURGSPND_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_PCNTRLPURGSPND_STR-SUPPLIER sy-vline 
WA_PCNTRLPURGSPND_STR-PURCHASINGORGANIZATION sy-vline 
WA_PCNTRLPURGSPND_STR-PURCHASINGGROUP sy-vline 
WA_PCNTRLPURGSPND_STR-COMPANYCODE sy-vline 
WA_PCNTRLPURGSPND_STR-MATERIAL sy-vline 
WA_PCNTRLPURGSPND_STR-MATERIALGROUP sy-vline 
WA_PCNTRLPURGSPND_STR-PLANT sy-vline 
WA_PCNTRLPURGSPND_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_PCNTRLPURGSPND_STR-SCHEDLINESTSCDELIVERYDATE sy-vline 
WA_PCNTRLPURGSPND_STR-PURCHASEORDERDATE sy-vline 
WA_PCNTRLPURGSPND_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_PCNTRLPURGSPND_STR-PURCHASEORDERTYPE sy-vline 
WA_PCNTRLPURGSPND_STR-CREATEDBYUSER sy-vline 
WA_PCNTRLPURGSPND_STR-CREATEDBYUSERNAME sy-vline 
WA_PCNTRLPURGSPND_STR-ISRETURNSITEM sy-vline 
WA_PCNTRLPURGSPND_STR-NETPRICEINREPORTINGCURRENCY sy-vline 
WA_PCNTRLPURGSPND_STR-NETPRICEINREPORTINGCURRENCY2 sy-vline 
WA_PCNTRLPURGSPND_STR-NETPRICEAMOUNT sy-vline 
WA_PCNTRLPURGSPND_STR-ANALYTICALREPORTINGCURRENCY sy-vline 
WA_PCNTRLPURGSPND_STR-ANALYTICALREPORTINGCURRENCY2 sy-vline 
WA_PCNTRLPURGSPND_STR-DOCUMENTCURRENCY sy-vline 
WA_PCNTRLPURGSPND_STR-ORDERQUANTITYUNIT sy-vline 
WA_PCNTRLPURGSPND_STR-SCHEDULELINEORDERQUANTITY sy-vline 
WA_PCNTRLPURGSPND_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_PCNTRLPURGSPND_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_PCNTRLPURGSPND_STR-NETPRICEQUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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