ABAP Select data from SAP table CPURREQNFLLWH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPURREQNFLLWH
*  INTO TABLE @DATA(IT_CPURREQNFLLWH2).
*--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_CPURREQNFLLWH INDEX 1 INTO DATA(WA_CPURREQNFLLWH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPURREQNFLLWH>-MANDT = 1.
<CPURREQNFLLWH>-PURREQNFLLWONDOCDRFTHDRUUID = 1.
<CPURREQNFLLWH>-PROCUREMENTHUBSOURCESYSTEM = 1.
<CPURREQNFLLWH>-PROCUREMENTHUBSOURCESYSTEMNAME = 1.
<CPURREQNFLLWH>-PROCMTHUBFIXEDSUPPLIER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPURREQNFLLWH-PROCMTHUBSUPPLIERNAME, sy-vline,
  WA_CPURREQNFLLWH-PROCMTHUBCOMPANYCODE, sy-vline,
  WA_CPURREQNFLLWH-PROCMTHUBCOMPANYCODENAME, sy-vline,
  WA_CPURREQNFLLWH-PROCMTHUBPURCHASINGGROUP, sy-vline,
  WA_CPURREQNFLLWH-PURCHASINGGROUPNAME, sy-vline,
  WA_CPURREQNFLLWH-PROCMTHUBPURCHASINGORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPURREQNFLLWH 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_CPURREQNFLLWH 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_CPURREQNFLLWH INTO WA_CPURREQNFLLWH.


*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 PROCMTHUBFIXEDSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPURREQNFLLWH-PROCMTHUBFIXEDSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPURREQNFLLWH-PROCMTHUBFIXEDSUPPLIER.
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_CPURREQNFLLWH_STR, 
MANDT TYPE STRING,
PURREQNFLLWONDOCDRFTHDRUUID TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
PROCUREMENTHUBSOURCESYSTEMNAME TYPE STRING,
PROCMTHUBFIXEDSUPPLIER TYPE STRING,
PROCMTHUBSUPPLIERNAME TYPE STRING,
PROCMTHUBCOMPANYCODE TYPE STRING,
PROCMTHUBCOMPANYCODENAME TYPE STRING,
PROCMTHUBPURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PROCMTHUBPURCHASINGORG TYPE STRING,
PROCMTHUBPURGORGNAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
PROCMTHUBPURDOCUMENTTYPE TYPE STRING,
PROCMTHUBDOCUMENTCURRENCY TYPE STRING,
PROCMTHUBPAYMENTTERMS TYPE STRING,
PROCMTHUBINCOTERMSCLASSFCTN TYPE STRING,
PROCMTHUBINCOTERMSLOCATION1 TYPE STRING,
SUPLRISDSBLDFORPURREQNGROUPING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPURREQNFLLWH_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_CPURREQNFLLWH_STR-MANDT sy-vline 
WA_CPURREQNFLLWH_STR-PURREQNFLLWONDOCDRFTHDRUUID sy-vline 
WA_CPURREQNFLLWH_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_CPURREQNFLLWH_STR-PROCUREMENTHUBSOURCESYSTEMNAME sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBFIXEDSUPPLIER sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBSUPPLIERNAME sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBCOMPANYCODE sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBCOMPANYCODENAME sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBPURCHASINGGROUP sy-vline 
WA_CPURREQNFLLWH_STR-PURCHASINGGROUPNAME sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBPURCHASINGORG sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBPURGORGNAME sy-vline 
WA_CPURREQNFLLWH_STR-CREATEDBYUSER sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBPURDOCUMENTTYPE sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBDOCUMENTCURRENCY sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBPAYMENTTERMS sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBINCOTERMSCLASSFCTN sy-vline 
WA_CPURREQNFLLWH_STR-PROCMTHUBINCOTERMSLOCATION1 sy-vline 
WA_CPURREQNFLLWH_STR-SUPLRISDSBLDFORPURREQNGROUPING sy-vline      INTO ld_text SEPARATED BY SPACE.

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