ABAP Select data from SAP table CPURGDOCITMSU01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPURGDOCITMSU01 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 CPURGDOCITMSU01. 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 CPURGDOCITMSU01 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_CPURGDOCITMSU01 TYPE STANDARD TABLE OF CPURGDOCITMSU01,
      WA_CPURGDOCITMSU01 TYPE CPURGDOCITMSU01,
      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: <CPURGDOCITMSU01> TYPE CPURGDOCITMSU01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CPURGDOCITMSU01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CPURGDOCITMSU01
  INTO TABLE IT_CPURGDOCITMSU01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPURGDOCITMSU01
*  INTO TABLE @DATA(IT_CPURGDOCITMSU012).
*--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_CPURGDOCITMSU01 INDEX 1 INTO DATA(WA_CPURGDOCITMSU012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CPURGDOCITMSU01 ASSIGNING <CPURGDOCITMSU01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPURGDOCITMSU01>-MANDT = 1.
<CPURGDOCITMSU01>-PURCHASINGDOCUMENT = 1.
<CPURGDOCITMSU01>-PURCHASINGDOCUMENTITEM = 1.
<CPURGDOCITMSU01>-MATERIAL = 1.
<CPURGDOCITMSU01>-MATERIALNAME = 1.

ENDLOOP.

LOOP AT IT_CPURGDOCITMSU01 INTO WA_CPURGDOCITMSU01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPURGDOCITMSU01-MATERIALGROUP, sy-vline,
  WA_CPURGDOCITMSU01-PLANT, sy-vline,
  WA_CPURGDOCITMSU01-PURCHASINGDOCUMENTITEMTEXT, sy-vline,
  WA_CPURGDOCITMSU01-PURCHASINGDOCUMENTITEMCATEGORY, sy-vline,
  WA_CPURGDOCITMSU01-DUEDAYS, sy-vline,
  WA_CPURGDOCITMSU01-ORDERQUANTITYUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPURGDOCITMSU01 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_CPURGDOCITMSU01 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_CPURGDOCITMSU01 INTO WA_CPURGDOCITMSU01.


*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 PURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPURGDOCITMSU01-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPURGDOCITMSU01-PURCHASINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPURGDOCITMSU01-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPURGDOCITMSU01-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPURGDOCITMSU01-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPURGDOCITMSU01-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_CPURGDOCITMSU01_STR, 
MANDT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIALGROUP TYPE STRING,
PLANT TYPE STRING,
PURCHASINGDOCUMENTITEMTEXT TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
DUEDAYS TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
ORDERQUANTITY TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
NETAMOUNT TYPE STRING,
ISCOMPLETELYDELIVERED TYPE STRING,
ISFINALLYINVOICED TYPE STRING,
SUPLRCONFISPENDING TYPE STRING,
DELIVERYDATE TYPE STRING,
ISCMPLTLYDELIVEREDCRITICALITY TYPE STRING,
ISFINALLYINVOICEDCRITICALITY TYPE STRING,
SUPLRCONFISPENDINGCRITICALITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPURGDOCITMSU01_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_CPURGDOCITMSU01_STR-MANDT sy-vline 
WA_CPURGDOCITMSU01_STR-PURCHASINGDOCUMENT sy-vline 
WA_CPURGDOCITMSU01_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_CPURGDOCITMSU01_STR-MATERIAL sy-vline 
WA_CPURGDOCITMSU01_STR-MATERIALNAME sy-vline 
WA_CPURGDOCITMSU01_STR-MATERIALGROUP sy-vline 
WA_CPURGDOCITMSU01_STR-PLANT sy-vline 
WA_CPURGDOCITMSU01_STR-PURCHASINGDOCUMENTITEMTEXT sy-vline 
WA_CPURGDOCITMSU01_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_CPURGDOCITMSU01_STR-DUEDAYS sy-vline 
WA_CPURGDOCITMSU01_STR-ORDERQUANTITYUNIT sy-vline 
WA_CPURGDOCITMSU01_STR-ORDERQUANTITY sy-vline 
WA_CPURGDOCITMSU01_STR-DOCUMENTCURRENCY sy-vline 
WA_CPURGDOCITMSU01_STR-NETAMOUNT sy-vline 
WA_CPURGDOCITMSU01_STR-ISCOMPLETELYDELIVERED sy-vline 
WA_CPURGDOCITMSU01_STR-ISFINALLYINVOICED sy-vline 
WA_CPURGDOCITMSU01_STR-SUPLRCONFISPENDING sy-vline 
WA_CPURGDOCITMSU01_STR-DELIVERYDATE sy-vline 
WA_CPURGDOCITMSU01_STR-ISCMPLTLYDELIVEREDCRITICALITY sy-vline 
WA_CPURGDOCITMSU01_STR-ISFINALLYINVOICEDCRITICALITY sy-vline 
WA_CPURGDOCITMSU01_STR-SUPLRCONFISPENDINGCRITICALITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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