ABAP Select data from SAP table PPURREQNITMOVW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPURREQNITMOVW
*  INTO TABLE @DATA(IT_PPURREQNITMOVW2).
*--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_PPURREQNITMOVW INDEX 1 INTO DATA(WA_PPURREQNITMOVW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPURREQNITMOVW>-MANDT = 1.
<PPURREQNITMOVW>-PURCHASEREQUISITION = 1.
<PPURREQNITMOVW>-PURCHASEREQUISITIONITEM = 1.
<PPURREQNITMOVW>-PURCHASEREQNACCTASSGMTNUMBER = 1.
<PPURREQNITMOVW>-PURCHASEREQUISITIONITEMTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPURREQNITMOVW-PURCHASEREQUISITIONTYPE, sy-vline,
  WA_PPURREQNITMOVW-PURCHASINGDOCUMENTITEMCATEGORY, sy-vline,
  WA_PPURREQNITMOVW-MATERIALGROUP, sy-vline,
  WA_PPURREQNITMOVW-MATERIAL, sy-vline,
  WA_PPURREQNITMOVW-PURCHASINGORGANIZATION, sy-vline,
  WA_PPURREQNITMOVW-PURCHASINGGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPURREQNITMOVW 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_PPURREQNITMOVW 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_PPURREQNITMOVW INTO WA_PPURREQNITMOVW.


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

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

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

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

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

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

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

*Conversion exit ABPSN, internal->external for field WBSELEMENTEXTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PPURREQNITMOVW-WBSELEMENTEXTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPURREQNITMOVW-WBSELEMENTEXTERNALID.
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_PPURREQNITMOVW_STR, 
MANDT TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
PURCHASEREQNACCTASSGMTNUMBER TYPE STRING,
PURCHASEREQUISITIONITEMTEXT TYPE STRING,
PURCHASEREQUISITIONTYPE TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PLANT TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
SUPPLIER TYPE STRING,
DELIVERYDATE TYPE STRING,
STATUS TYPE STRING,
OBJECTTYPE TYPE STRING,
SERVICEPERFORMER TYPE STRING,
COSTCENTER TYPE STRING,
SALESORDER TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
PURCHASEORDER TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
WORKITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPURREQNITMOVW_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_PPURREQNITMOVW_STR-MANDT sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASEREQUISITION sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASEREQNACCTASSGMTNUMBER sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASEREQUISITIONITEMTEXT sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASEREQUISITIONTYPE sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_PPURREQNITMOVW_STR-MATERIALGROUP sy-vline 
WA_PPURREQNITMOVW_STR-MATERIAL sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASINGORGANIZATION sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASINGGROUP sy-vline 
WA_PPURREQNITMOVW_STR-PLANT sy-vline 
WA_PPURREQNITMOVW_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_PPURREQNITMOVW_STR-SUPPLIER sy-vline 
WA_PPURREQNITMOVW_STR-DELIVERYDATE sy-vline 
WA_PPURREQNITMOVW_STR-STATUS sy-vline 
WA_PPURREQNITMOVW_STR-OBJECTTYPE sy-vline 
WA_PPURREQNITMOVW_STR-SERVICEPERFORMER sy-vline 
WA_PPURREQNITMOVW_STR-COSTCENTER sy-vline 
WA_PPURREQNITMOVW_STR-SALESORDER sy-vline 
WA_PPURREQNITMOVW_STR-SUPPLYINGPLANT sy-vline 
WA_PPURREQNITMOVW_STR-PURCHASEORDER sy-vline 
WA_PPURREQNITMOVW_STR-WBSELEMENTEXTERNALID sy-vline 
WA_PPURREQNITMOVW_STR-WORKITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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