ABAP Select data from SAP table CCFINRPOHEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCFINRPOHEADER
*  INTO TABLE @DATA(IT_CCFINRPOHEADER2).
*--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_CCFINRPOHEADER INDEX 1 INTO DATA(WA_CCFINRPOHEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCFINRPOHEADER>-MANDT = 1.
<CCFINRPOHEADER>-SENDERLOGICALSYSTEM = 1.
<CCFINRPOHEADER>-CFINREPLICATEDPURCHASEORDER = 1.
<CCFINRPOHEADER>-PURCHASINGDOCUMENTORDERDATE = 1.
<CCFINRPOHEADER>-PURCHASINGDOCUMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCFINRPOHEADER-CREATIONDATE, sy-vline,
  WA_CCFINRPOHEADER-CREATEDBYUSER, sy-vline,
  WA_CCFINRPOHEADER-COMPANYCODE, sy-vline,
  WA_CCFINRPOHEADER-VALIDITYSTARTDATE, sy-vline,
  WA_CCFINRPOHEADER-VALIDITYENDDATE, sy-vline,
  WA_CCFINRPOHEADER-PURCHASINGDOCUMENTVERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCFINRPOHEADER 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_CCFINRPOHEADER 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_CCFINRPOHEADER INTO WA_CCFINRPOHEADER.


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

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

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

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

*Conversion exit ALPHA, internal->external for field INVOICINGPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCFINRPOHEADER-INVOICINGPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCFINRPOHEADER-INVOICINGPARTY.
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_CCFINRPOHEADER_STR, 
MANDT TYPE STRING,
SENDERLOGICALSYSTEM TYPE STRING,
CFINREPLICATEDPURCHASEORDER TYPE STRING,
PURCHASINGDOCUMENTORDERDATE TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
COMPANYCODE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
PURCHASINGDOCUMENTVERSION TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
RELEASEISNOTCOMPLETED TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
EXCHANGERATE TYPE STRING,
TAXRETURNCOUNTRY TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
SUPPLIER TYPE STRING,
INVOICINGPARTY TYPE STRING,
PURCHASINGCOMPLETENESSSTATUS TYPE STRING,
PURCHASINGDOCUMENTDELETIONCODE TYPE STRING,
PURCHASINGDOCUMENTISAGED TYPE STRING,
PURCHASINGDOCUMENTTYPENAME TYPE STRING,
LOGICALSYSTEMNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCFINRPOHEADER_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_CCFINRPOHEADER_STR-MANDT sy-vline 
WA_CCFINRPOHEADER_STR-SENDERLOGICALSYSTEM sy-vline 
WA_CCFINRPOHEADER_STR-CFINREPLICATEDPURCHASEORDER sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGDOCUMENTORDERDATE sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CCFINRPOHEADER_STR-CREATIONDATE sy-vline 
WA_CCFINRPOHEADER_STR-CREATEDBYUSER sy-vline 
WA_CCFINRPOHEADER_STR-COMPANYCODE sy-vline 
WA_CCFINRPOHEADER_STR-VALIDITYSTARTDATE sy-vline 
WA_CCFINRPOHEADER_STR-VALIDITYENDDATE sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGDOCUMENTVERSION sy-vline 
WA_CCFINRPOHEADER_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_CCFINRPOHEADER_STR-RELEASEISNOTCOMPLETED sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGORGANIZATION sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGGROUP sy-vline 
WA_CCFINRPOHEADER_STR-DOCUMENTCURRENCY sy-vline 
WA_CCFINRPOHEADER_STR-EXCHANGERATE sy-vline 
WA_CCFINRPOHEADER_STR-TAXRETURNCOUNTRY sy-vline 
WA_CCFINRPOHEADER_STR-SUPPLYINGPLANT sy-vline 
WA_CCFINRPOHEADER_STR-SUPPLIER sy-vline 
WA_CCFINRPOHEADER_STR-INVOICINGPARTY sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGCOMPLETENESSSTATUS sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGDOCUMENTDELETIONCODE sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGDOCUMENTISAGED sy-vline 
WA_CCFINRPOHEADER_STR-PURCHASINGDOCUMENTTYPENAME sy-vline 
WA_CCFINRPOHEADER_STR-LOGICALSYSTEMNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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